RM38T0EC _51 Engine / Hybrid System _144956 M20F-FXS, M20G-FXS ENGINE CONTROL _0604911 SFI SYSTEM J

M20F-FXS, M20G-FXS ENGINE CONTROL  SFI SYSTEM  EVAP System  


RELATED DTCS

DTC No. Monitoring Item Link
P043E00 Reference orifice low flow (Click here)
P043F00 Reference orifice high flow
P04417E Purge VSV stuck open (Click here)
P04417F Purge VSV stuck closed
P04419C Insufficient purge flow
P044672 Vent valve (built into canister pump module) stuck open (Click here)
P046673 Vent valve (built into canister pump module) stuck closed (Click here)
P045011 Canister pressure sensor (built into canister pump module) voltage low (Click here)
P045015 Canister pressure sensor (built into canister pump module) voltage high
P04502F Canister pressure sensor (built into canister pump module) signal noise
P142000 Small or 0.02 inch leak from canister (Click here)
P142100 Gross leak from canister
P142200 Small or 0.02 inch leak from fuel tank (Click here)
P142300 Gross leak from fuel tank
P145011 Fuel tank pressure sensor voltage low (Click here)
P145015 Fuel tank pressure sensor voltage high
P14502A Fuel tank pressure sensor signal noise
P14502F Fuel tank pressure sensor signal fixed/flat
P14CE12 CCV B circuit range check (high current) (Click here)
P14CE14 CCV B circuit range check (low voltage)
P24007E Leak detection pump (built into canister pump module) stuck on (Click here)
P24007F Leak detection pump (built into canister pump module) stuck off
P241812 CCV A circuit range check (high current) (Click here)
P241814 CCV A circuit range check (low voltage)
P24507E Fuel vapor-containment valve stuck open (Click here)
P24517F Fuel vapor-containment valve stuck closed
P261029 Soak timer (built into ECM) (Click here)
P261093

DESCRIPTION

While the engine is running, if predetermined conditions (closed loop, etc.) are met, the purge VSV is opened by the ECM and stored fuel vapors in the canister are purged to the intake manifold. The ECM will change the duty cycle ratio of the purge VSV to control purge flow volume.

Purge flow volume is also determined by the intake manifold pressure. Atmospheric pressure is allowed to enter the canister through the vent valve to ensure that purge flow is maintained when negative pressure (vacuum) is applied to the canister.

The ECM monitors the condition of both the key-off monitor and purge flow monitor to ensure proper operation of the EVAP system.

A539661C01
3.49,1.229 4.25,2.25 4.25,2.25 4.417,2.25 true 4,1.01 5.167,1.833 5.167,1.833 5.333,1.833 true 5.5,5.104 5.917,4.667 5.917,4.667 6.083,4.667 true 4.917,5.021 5.417,4.417 5.417,4.417 5.583,4.417 true 4.083,6.052 3.833,6.333 3.833,6.333 3.667,6.333 true 4.448,6 4.667,6.417 4.667,6.417 4.833,6.417 true 4.292,6.156 4.083,6.583 4.083,6.583 3.917,6.583 true 1.969,3.833 1.583,3.417 1.583,3.417 1.417,3.417 true 4.552,4.208 4.917,3.75 4.917,3.75 5.083,3.75 true 3.229,1.375 2.75,2.25 2.75,2.25 2.583,2.25 true 3.115,3.677 2.333,2.75 2.333,2.75 2.167,2.75 true 4.458,2.167 4.771,2.323 0.313,0.156 10 false *1 2.385,2.167 2.698,2.323 0.313,0.156 10 false *2 5.385,1.75 5.698,1.906 0.313,0.156 10 false *3 6.115,4.583 6.427,4.74 0.313,0.156 10 false *4 5.625,4.333 5.938,4.49 0.313,0.156 10 false *5 3.469,6.25 3.781,6.417 0.313,0.167 10 false *6 4.865,6.333 5.177,6.49 0.313,0.156 10 false *7 3.729,6.5 4.042,6.656 0.313,0.156 10 false *8 1.229,3.333 1.542,3.49 0.313,0.156 10 false *9 5.125,3.667 5.594,3.823 0.469,0.156 10 false *10 1.896,2.667 2.365,2.823 0.469,0.156 10 false *11 2,0.094 2.313,0.25 0.313,0.156 10 false *a 0.542,2.708 0.833,2.917 0.292,0.208 10 false *b
*1 Purge VSV *2 Fuel Vapor Feed Hose Assembly (EVAP Hose) (to Intake Manifold)
*3 Fuel Vapor Feed Hose Assembly (EVAP Hose) (from Canister) *4 Canister Pump Module
- Canister Pressure Sensor
- Leak Detection Pump
- Vent Valve
*5 Canister *6 Canister Filter
*7 Air Inlet Port *8 Fuel Tank Cap Assembly
*9 Fuel Tank Assembly *10 Fuel Vapor-containment Valve
*11 Fuel Tank Pressure Sensor - -
*a Location of EVAP (Evaporative Emission) System *b Purge Line


A376003C01
1.448,0.781 1.375,0.333 1.375,0.333 1.188,0.333 true 2.615,0.573 2.677,0.146 2.677,0.146 2.885,0.146 true 0.823,1.167 0.625,0.865 0.625,0.865 0.469,0.865 true 1.771,1.115 1.219,1.563 1.219,1.563 1.063,1.563 true 4.521,0.844 4.583,0.417 4.583,0.417 4.792,0.417 true 6.323,1.281 6.396,0.646 6.396,0.646 6.188,0.646 true 6.542,1.375 6.615,0.948 6.615,0.948 6.771,0.948 true 4.479,2.885 4.573,2.75 4.573,2.75 4.729,2.75 true 4.573,1.833 4.938,1.833 true 3.917,2.24 3.625,2.49 3.625,2.49 3.469,2.49 true 3.531,3.229 3.896,3.229 true 0.313,0.781 0.625,0.938 0.313,0.156 10 false *1 0.896,1.479 1.208,1.635 0.313,0.156 10 false *2 1.021,0.26 1.333,0.417 0.313,0.156 10 false *3 2.583,1.604 2.75,1.781 0.167,0.177 10 true *4 2.927,0.073 3.24,0.229 0.313,0.156 10 false *5 3.875,0.615 4.188,0.771 0.313,0.156 10 false *6 4.854,0.333 5.167,0.49 0.313,0.156 10 false *7 6.031,0.573 6.344,0.729 0.313,0.156 10 false *8 4.781,2.688 5.094,2.844 0.313,0.156 10 false *9 2.771,1.281 3.24,1.438 0.469,0.156 10 false *10 3.333,3.146 3.802,3.302 0.469,0.156 10 false *11 1.635,3.031 2.104,3.188 0.469,0.156 10 false *12 6.823,0.875 7.094,1.083 0.271,0.208 10 false *13 4.99,1.76 5.458,1.917 0.469,0.156 10 false *14 3.24,2.417 3.708,2.573 0.469,0.156 10 false *15 0.083,0.063 0.396,0.219 0.313,0.156 10 false *a
*1 Intake Manifold *2 Purge VSV
*3 Throttle Valve *4 Canister
*5 Air Cleaner *6 ECM
*7 Soak Timer *8 Canister Filter
*9 Fuel Tank Pressure Sensor *10 Canister Pump Module
- Canister Pressure Sensor
- Leak Detection Pump
- Vent Valve
*11 Cut-off Valve *12 Fuel Tank Assembly
*13 Fuel Tank Cap Assembly *14 Fuel Vapor-containment Valve
*15 Fuel Outlet Valve (Relief Valve) - -
*a EVAP System Circuit - -


Component Operation
Canister Contains activated charcoal to absorb EVAP (Evaporative Emissions) generated in fuel tank.
Cut-off valve Located in the fuel tank. Valve closes by its own weight when vehicle is overturned to prevent fuel from spilling out.
Purge VSV (Vacuum Switching Valve) Opens or closes line between canister and intake manifold. ECM uses purge VSV to control EVAP purge flow. In order to discharge EVAP absorbed by canister to intake manifold, ECM opens purge VSV. EVAP discharge volume to intake manifold controlled by purge VSV duty cycle (current-carrying time). (Open: on, Close: off)
Soak timer Built into ECM. To ensure accurate EVAP monitor, measures 5 hours (+/-15 min) after ignition switch is turned off. This allows fuel to cool down, stabilizing EVAP pressure. When approximately 5 hours elapsed, ECM activates (refer to fig. 3).
Fuel vapor-containment valve Opens and closes line between fuel tank and canister. When vehicle is stopped, this valve stays closed to keep fuel vapors in the tank and prevent them from being absorbed by canister. During refueling, valve opens to allow fuel vapors from tank to be absorbed by canister. When the vehicle is being driven, the valve maintains a slight positive pressure in the fuel tank.
Fuel tank pressure sensor Converts pressure in fuel tank into voltage reading for use by ECM. ECM supplies 5 V to sensor, and uses voltage reading that is output as feedback to allow monitoring of fuel tank pressure (refer to fig. 4).
Canister pump module Consists of (a) to (d) below. Canister pump module cannot be disassembled.
(a) Vent valve* Vents and closes EVAP system. When ECM turns valve on, EVAP system is closed. When ECM turns valve off, EVAP system is vented. Negative pressure (vacuum) is created in EVAP system to check for EVAP leaks by closing purge VSV, turning on vent valve (closing it) and operating leak detection pump (refer to fig. 1).
(b) Canister pressure sensor Indicates pressure as voltages. ECM supplies regulated 5 V to pressure sensor, and uses feedback from sensor to monitor EVAP system pressure (refer to fig. 2).
(c) Leak detection pump Creates negative pressure (vacuum) in EVAP system for leak check.
(d) Reference orifice Has opening with 0.02 inch diameter. Vacuum is produced through orifice by closing purge VSV, turning off vent valve and operating leak detection pump, to monitor reference pressure. Reference pressure is used when checking for small EVAP leaks.

*: Vent Valve Operation
Vent Valve EVAP System
Off Close Vent
On Open Close

A207995C05
3.25,1.771 3.042,2.896 false 5.323,1.833 4.885,2.802 false 6.26,1.771 5.979,2.833 false 2.781,1.875 2.781,2.49 2.781,2.49 1.531,2.833 false 1.26,0.917 2.177,1.375 false 2.344,2.188 1.552,2.344 false 0.208,0.125 0.438,0.354 0.229,0.229 10 *a 1.479,1.448 1.74,1.708 0.26,0.26 10 *1 1.375,2.781 1.604,2.969 0.229,0.188 10 *3 1.385,2.281 1.74,2.615 0.354,0.333 10 *2 4.063,0.083 4.323,0.25 0.26,0.167 10 : *b 5.698,0.552 6.042,0.781 0.344,0.229 10 *d 2.99,2.917 3.229,3.271 0.24,0.354 10 *g 3.896,1.302 4.135,1.5 0.24,0.198 10 *f 5.917,2.865 6.177,3.031 0.26,0.167 10 *i 2.688,0.563 2.958,0.771 0.271,0.208 10 *c 4.771,2.948 5.01,3.104 0.24,0.156 10 *h 1.073,0.792 1.344,1.052 0.271,0.26 10 *e
*1 Canister *2 Reference Orifice (0.02 Inch)
*3 Canister Pressure Sensor - -
*a Canister Pump Module (fig. 1) *b Airflow
*c Condition: Purge Flow *d Condition: Leak Check
*e Vent Valve: off (vent) *f to Canister Filter (Atmosphere)
*g Leak Detection Pump: off *h Vent Valve: on (closed)
*i Leak Detection Pump: on - -


A316146E09
4.5,1.417 4.917,1.115 true 4.5,3.302 4.917,3 true 0.094,0.083 3,0.25 2.906,0.167 10 false Canister Pressure Sensor Specification (fig. 2) 1.25,1 2.25,1.167 1,0.167 10 false Output Voltage 1.719,1.458 2.333,1.625 0.615,0.167 10 false 4.900 V 1.719,1.917 2.333,2.083 0.615,0.167 10 false 4.423 V 1.719,2.615 2.333,2.781 0.615,0.167 10 false 1.425 V 1.719,3.104 2.333,3.271 0.615,0.167 10 false 0.450 V 1,4.167 1.448,4.333 0.448,0.167 10 false HINT: 1,4.333 5.167,4.5 4.167,0.167 10 false Standard atmospheric pressure is 101.3 kPa(abs) [14.7 psi(abs)] 2.792,3.448 3.375,3.615 0.583,0.167 10 false 60 [8.7] 3.448,3.448 4.208,3.792 0.76,0.344 10 false 115 [17] 4.25,3.448 4.854,3.854 0.604,0.406 10 false kPa(abs) [psi(abs)] 5.333,3.344 6,3.51 0.667,0.167 10 false Pressure 4.969,2.917 6.052,3.083 1.083,0.167 10 false Malfunction Area 4.969,1.031 6.052,1.198 1.083,0.167 10 false Malfunction Area 3.833,2.417 4.75,2.583 0.917,0.167 10 false Usable Range

A404893E74
0.156,1.906 1.042,2.448 0.885,0.542 10 false from Auxiliary Battery 0.583,1.281 0.979,1.76 0.396,0.479 10 false BATT MAIN 1.99,1.042 3.219,1.24 1.229,0.198 10 false IGP-MAIN 3.625,1.063 4.75,1.323 1.125,0.26 10 false ECU-IGP NO.1 4.458,0.771 5.073,0.969 0.615,0.198 10 false IGP 5.01,1.146 5.771,1.573 0.76,0.427 10 false Soak Timer IC 4.156,2.906 4.771,3.135 0.615,0.229 10 false +B, +B2 4.969,2.823 5.76,3.344 0.792,0.521 10 false Power Source IC 4.333,3.708 4.948,3.906 0.615,0.198 10 false MREL 4.969,3.604 5.729,4.177 0.76,0.573 10 false Main Relay Control IC 5.625,4.323 6.031,4.573 0.406,0.25 10 false ECM 2.677,4.146 3.719,4.458 1.042,0.313 10 false EFI-MAIN NO.1 1.427,3.594 2.458,3.844 1.031,0.25 10 false EFI-MAIN NO.1 2.469,2.031 4.656,2.427 2.188,0.396 10 false from Certification ECU (Smart Key ECU Assembly) 2.75,1.615 3.979,1.813 1.229,0.198 10 false IGP-MAIN 0.125,0.083 1.833,0.354 1.708,0.271 10 false Soak Timer Circuit (fig. 3)

A320264E06
4.5,2.167 4.667,1.833 4.667,1.833 4.833,1.833 true 4.417,0.75 4.583,0.417 4.583,0.417 4.75,0.417 true 0.135,0.094 3.354,0.396 3.219,0.302 10 false Fuel Tank Pressure Sensor Specification (fig. 4) 0.594,0.469 1.583,0.688 0.99,0.219 10 false Output Voltage 1.604,0.813 2.594,1.031 0.99,0.219 10 false 4.27 to 4.73 V 1.583,1.448 2.573,1.667 0.99,0.219 10 false 2.05 to 2.37 V 1.594,1.927 2.583,2.146 0.99,0.219 10 false 0.27 to 0.73 V 2.813,2.313 3.802,2.531 0.99,0.219 10 false -15 3.542,2.313 4.531,2.531 0.99,0.219 10 false 0 4.344,2.313 5.333,2.531 0.99,0.219 10 false 20 2.771,2.479 3.76,2.698 0.99,0.219 10 false [-2.2] 3.51,2.469 4.5,2.688 0.99,0.219 10 false [0] 4.292,2.479 5.281,2.698 0.99,0.219 10 false [2.9] 4.844,2.302 5.833,2.521 0.99,0.219 10 false kPa(gauge) 4.844,2.479 5.833,2.698 0.99,0.219 10 false [psi(gauge)] 4.813,0.333 6.146,0.573 1.333,0.24 10 false Malfunction Area 4.917,1.75 6.25,1.99 1.333,0.24 10 false Malfunction Area

Key-off monitor


This monitor checks for EVAP (evaporative emission) system leaks and canister pump module malfunctions. The monitor starts 5 hours* after the ignition switch is turned off. At least 5 hours are required for the fuel to cool down to stabilize the EVAP pressure, thus making the EVAP system monitor more accurate.

The leak detection pump creates negative pressure (vacuum) in the EVAP system and the pressure is measured. Finally, the ECM monitors for leaks from the EVAP system, and malfunctions in both the canister pump module and purge VSV based on the EVAP pressure.

HINT:

*: If the engine coolant temperature is not less than 35°C (95°F) 5 hours after the ignition switch is turned off, the monitor check starts 2 hours later. If it is still not less than 35°C (95°F) 7 hours after the ignition switch is turned off, the monitor check starts 2.5 hours later.


a.

If the fuel tank pressure is higher or lower than the atmospheric pressure, the system determines that there are no leaks in the closed tank system and the system will check for leaks from the piping and canister between the purge VSV and canister pump module. (Method A)

A318929E01
3.823,0.792 4.042,0.458 4.042,0.458 4.302,0.458 false 2.135,3.979 2.219,3.552 2.219,3.552 2.365,3.552 false 2.896,3.771 3.125,3.479 3.125,3.479 3.313,3.479 false 5.167,3.198 5.302,3.01 5.302,3.01 5.563,3.01 false 3.844,2.448 4.146,2.24 4.146,2.24 4.302,2.24 false 2.125,4.125 2.219,4.604 2.219,4.604 2.344,4.604 false 2.948,4.354 3.021,4.615 3.021,4.615 3.26,4.615 false 4.177,0.938 4.24,1.104 4.24,1.104 4.385,1.104 false 0.177,0.135 1.406,0.333 1.229,0.198 10 false Method A 0.823,2.552 2.198,2.75 1.375,0.198 10 false Purge VSV 0.365,0.719 1.427,1.229 1.063,0.51 10 false Vent Valve (Switching Valve) 0.49,1.552 1.5,2.531 1.01,0.979 10 false Leak Detection Pump 0.292,3.135 1.438,4.396 1.146,1.26 10 false Fuel Vapor-containment Valve 0.281,3.99 1.5,4.51 1.219,0.521 10 false Fuel Tank Pressure 3.375,3.396 4.615,3.729 1.24,0.333 10 true Fuel Tank Pressure 3.354,4.531 4.604,4.844 1.25,0.313 10 true Fuel Tank Pressure 0.594,4.833 3.333,5.271 2.74,0.438 10 false EVAP Pressure 0.927,5.927 2.24,6.406 1.313,0.479 10 false Sequence 3.083,0.813 3.396,1.01 0.313,0.198 10 false ON 4.979,0.813 5.292,1.01 0.313,0.198 10 true ON 3.771,2.51 4.083,2.708 0.313,0.198 10 false ON 5.083,3.333 5.396,3.531 0.313,0.198 10 false ON 4.375,0.375 5.021,0.708 0.646,0.333 10 true ON: Close 5.615,2.948 6.25,3.281 0.635,0.333 10 true ON: Open 4.417,1.031 5.094,1.385 0.677,0.354 10 true OFF: Vent 4.365,2.167 5.021,2.5 0.656,0.333 10 true ON: Open 3.063,1.552 3.375,1.75 0.313,0.198 10 false ON 2.417,3.479 2.729,3.677 0.313,0.198 10 false PH 2.406,4.521 2.719,4.719 0.313,0.198 10 false PL 5.74,3.979 7.125,4.438 1.385,0.458 10 false Atmospheric Pressure 5.771,4.823 7.156,5.281 1.385,0.458 10 false Atmospheric Pressure 1.24,6.344 1.854,6.542 0.615,0.198 10 false Time 1.458,6.823 2.99,7.021 1.531,0.198 10 false 60 seconds 2,7.115 3.531,7.313 1.531,0.198 10 false 360 seconds 4.073,6.833 5.604,7.031 1.531,0.198 10 false 60 seconds 2.615,6.823 5.281,7.063 2.667,0.24 10 false Within 15 minutes 3.563,7.125 5.094,7.323 1.531,0.198 10 false 10 seconds 4.542,7.156 6.073,7.354 1.531,0.198 10 false 5 seconds 4.958,6.844 6.49,7.042 1.531,0.198 10 false 0.1 seconds 2.313,5.99 2.469,6.188 0.156,0.198 10 false B 1.813,5.979 1.969,6.177 0.156,0.198 10 false A 3.125,6.01 3.281,6.208 0.156,0.198 10 false C 3.854,5.99 4.01,6.188 0.156,0.198 10 false D 4.75,6.01 4.906,6.208 0.156,0.198 10 false F 5.458,6 5.615,6.198 0.156,0.198 10 false J 5.146,5.99 5.302,6.188 0.156,0.198 10 false I 4.354,6 4.51,6.198 0.156,0.198 10 false E


b.

If the fuel tank pressure is almost the same as the atmospheric pressure, vacuum will be allowed to enter the fuel tank and the system will check for leaks from the fuel tank after checking for leaks from the canister. (Method B)

A318939E01
3.531,1.198 3.802,0.958 3.802,0.958 4,0.958 false 3.615,2.833 3.833,2.646 3.833,2.646 4.031,2.646 false 5.552,3.521 5.792,3.313 5.792,3.313 5.99,3.313 false 4.833,4.49 5.125,4.052 5.125,4.052 5.323,4.052 false 4.698,5.281 4.813,5.021 4.813,5.021 4.969,5.021 false 0.198,0.198 1.427,0.396 1.229,0.198 10 false Method B 0.104,1.115 1.167,1.594 1.063,0.479 10 false Vent Valve (Switching Valve) 0.177,2.042 1.156,3.104 0.979,1.063 10 false Leak Detection Pump 0.469,2.885 1.844,3.083 1.375,0.198 10 false Purge VSV 0.25,5.167 2.042,5.479 1.792,0.313 10 false EVAP Pressure 0.052,4.385 1.458,4.729 1.406,0.344 10 false Fuel Tank Pressure 0.594,6.083 1.823,6.281 1.229,0.198 10 false Sequence 0.875,6.427 1.729,6.719 0.854,0.292 10 false Time 2.75,1.208 3.063,1.406 0.313,0.198 10 false ON 2.76,2.042 3.073,2.24 0.313,0.198 10 false ON 3.448,2.854 3.76,3.052 0.313,0.198 10 false ON 5.115,1.219 5.427,1.417 0.313,0.198 10 false ON 5.135,2.031 5.448,2.229 0.313,0.198 10 false ON 5.083,3.552 5.396,3.75 0.313,0.198 10 false ON 4.063,0.844 4.74,1.146 0.677,0.302 10 true ON: Close 4.094,2.573 4.76,2.917 0.667,0.344 10 true ON: Open 6.052,3.229 6.698,3.563 0.646,0.333 10 true ON: Open 5.365,3.979 6.781,4.333 1.417,0.354 10 true Atmospheric Pressure 5.021,4.927 6.438,5.24 1.417,0.313 10 true Atmospheric Pressure 1.083,6.885 2.615,7.083 1.531,0.198 10 false 60 seconds 1.667,7.198 3.198,7.396 1.531,0.198 10 false 360 seconds 3.26,7.198 4.792,7.396 1.531,0.198 10 false 10 seconds 3.76,6.885 5.292,7.083 1.531,0.198 10 false 60 seconds 4.208,7.177 5.74,7.375 1.531,0.198 10 false 5 seconds 5.823,7.167 6.865,7.563 1.042,0.396 10 false 60 seconds 2.344,6.854 4.948,7.052 2.604,0.198 10 false Within 15 minutes 4.75,6.896 6.781,7.167 2.031,0.271 10 false Within 15 minutes 1.417,6.104 1.573,6.302 0.156,0.198 10 false A 1.969,6.104 2.125,6.302 0.156,0.198 10 false B 2.781,6.104 2.938,6.302 0.156,0.198 10 false C 3.479,6.104 3.635,6.302 0.156,0.198 10 false D 4.021,6.115 4.177,6.313 0.156,0.198 10 false E 4.448,6.104 4.604,6.302 0.156,0.198 10 false F 5.167,6.135 5.323,6.333 0.156,0.198 10 false G 6.094,6.135 6.25,6.333 0.156,0.198 10 false H 6.604,6.146 6.76,6.344 0.156,0.198 10 false J 0.052,3.49 1.219,4.063 1.167,0.573 10 false Fuel Vapor-containment Valve



Sequence Operation Description Duration
- ECM activation Activated by soak timer, 5 hours (7 or 9.5 hours) after ignition switch turned off. -
A Atmospheric pressure measurement Vent valve turned off (vent) and EVAP system pressure is measured by ECM in order to register atmospheric pressure.
If pressure in EVAP system is not between 70 and 110 kPa(abs) [10.2 and 16 psi(abs)], ECM cancels EVAP system monitor. 		60 seconds
B First reference pressure measurement In order to determine reference pressure, leak detection pump creates negative pressure (vacuum) through reference orifice and then ECM checks if leak detection pump and vent valve operate normally. 360 seconds
C EVAP system pressure measurement Vent valve is turned on (closed) to shut EVAP system.
Negative pressure (vacuum) is created in EVAP system, and EVAP system pressure is then measured.
Write down measured values as they will be used in leak check. If EVAP pressure does not stabilize within 15 minutes, ECM cancels EVAP system monitor. 		15 minutes
D Purge VSV monitor Purge VSV opens and then EVAP system pressure is measured by ECM.
Large increase indicates normal. 		10 seconds
E Second reference pressure measurement After second reference pressure measurement, leak check is performed by comparing first and second reference pressure. If stabilized system pressure is higher than second reference pressure, ECM determines that EVAP system has a leak. 60 seconds
F Resetting Fuel tank pressure is compared with atmospheric pressure. If tank pressure is higher than PH or lower than PL, ECM determines that EVAP system is normal and runs sequence I in method A. If tank pressure is around atmospheric pressure, ECM performs sequence G in method B. 5 seconds
G Fuel tank pressure measurement Vent valve is turned on (closed). Fuel vapor-containment valve opens to allow negative pressure to enter the fuel tank and fuel tank pressure is measured.
Write down measured values because they will be used in leak check. If fuel tank pressure does not stabilize within 15 minutes, ECM stops monitoring. 		15 minutes*
H Third reference pressure measurement After third reference pressure measurement, leak check of fuel tank is performed. If recorded fuel tank pressure is higher than third reference pressure, ECM determines that EVAP system has a leak. 60 seconds
I Fuel vapor-containment valve stuck closed check Fuel vapor-containment valve is opened for a certain amount of time to check whether the valve is stuck closed. 0.1 seconds
J Final check Atmospheric pressure is measured and then monitoring result is recorded by ECM. -

HINT:

*: If there is only a small amount of fuel in the fuel tank assembly, stabilizing the EVAP pressure takes longer than usual.


A231718C02
1.479,0.646 1.688,0.313 1.688,0.313 1.833,0.313 false 0.771,0.938 1.823,0.938 false 2.167,0.646 2.375,0.313 2.375,0.313 2.531,0.313 false 2.385,0.594 2.792,0.438 2.792,0.438 2.969,0.438 false 2.771,0.875 3.063,0.875 false 2.042,1.354 2.458,1.031 2.458,1.031 2.625,1.031 false 1.021,1.448 1.458,1.448 false 1.479,1.854 1.615,1.854 1.615,1.854 1.781,1.677 false 2.042,2.271 1.896,2.271 1.896,2.271 1.896,1.885 false 5.427,1.375 5.844,1.052 5.844,1.052 6.01,1.052 false 5.542,3.563 5.958,3.24 5.958,3.24 6.125,3.24 false 2.135,3.552 2.552,3.229 2.552,3.229 2.719,3.229 false 2.156,5.74 2.573,5.417 2.573,5.417 2.74,5.417 false 0.208,0.188 0.479,0.458 0.271,0.271 10 false *a 3.76,0.125 4.031,0.396 0.271,0.271 10 false *b 0.188,4.688 0.469,4.969 0.281,0.281 10 false *e 3.813,2.354 4.083,2.625 0.271,0.271 10 false *d 5.063,5.865 5.333,6.135 0.271,0.271 10 false *g 5.042,5.302 5.313,5.573 0.271,0.271 10 false *f 0.219,2.521 0.49,2.792 0.271,0.271 10 false *c 0.552,0.865 0.823,1.135 0.271,0.271 10 false *1 1.365,0.708 1.635,0.979 0.271,0.271 10 false *12 4.75,0.719 5.021,0.99 0.271,0.271 10 false *12 5.448,0.708 5.719,0.979 0.271,0.271 10 false *12 2.063,0.719 2.333,0.99 0.271,0.271 10 false *12 1.365,2.917 1.635,3.188 0.271,0.271 10 false *12 2.063,2.927 2.333,3.198 0.271,0.271 10 false *12 4.76,2.927 5.031,3.198 0.271,0.271 10 false *13 5.448,2.917 5.719,3.188 0.271,0.271 10 false *12 1.375,5.115 1.646,5.385 0.271,0.271 10 false *12 4.948,1.802 5.219,2.073 0.271,0.271 10 false *13 4.969,4 5.24,4.271 0.271,0.271 10 false *13 1.583,4.01 1.854,4.281 0.271,0.271 10 false *13 2.052,5.104 2.323,5.375 0.271,0.271 10 false *13 1.594,6.208 1.865,6.479 0.271,0.271 10 false *13 2.792,5.354 3.094,5.615 0.302,0.26 10 false *15 2.75,3.167 3.052,3.427 0.302,0.26 10 false *15 6.167,3.177 6.469,3.438 0.302,0.26 10 false *15 6.063,0.99 6.365,1.25 0.302,0.26 10 false *14 2.115,2.219 2.385,2.49 0.271,0.271 10 false *11 2.938,1.75 3.208,2.021 0.271,0.271 10 false *10 0.865,1.375 1.135,1.646 0.271,0.271 10 false *2 1.302,1.781 1.573,2.052 0.271,0.271 10 false *3 1.865,0.229 2.135,0.5 0.271,0.271 10 false *4 2.583,0.24 2.854,0.51 0.271,0.271 10 false *5 3.01,0.375 3.281,0.646 0.271,0.271 10 false *6 3.094,0.813 3.365,1.083 0.271,0.271 10 false *7 2.76,1.313 3.031,1.583 0.271,0.271 10 false *8 2.656,0.958 2.927,1.229 0.271,0.271 10 false *9
*1 Canister *2 Reference Orifice (0.02 inch)
*3 Canister Pressure Sensor *4 Purge VSV
*5 Fuel Vapor-containment Valve *6 Fuel Tank Pressure Sensor
*7 Fuel Tank Assembly *8 Canister Pump Module
*9 Vent Valve: OFF (Vent) *10 Canister Filter
*11 Leak Detection Pump: OFF *12 OFF
*13 ON *14 OFF (Vent)
*15 ON (Closed) - -
*a Operation A, F *b Operation B, E, H
*c Operation C *d Operation D
*e Operation G *f Atmospheric Pressure
*g Negative Pressure - -


Purge flow monitor


The purge flow monitor consists of the 2 monitors. The 1st monitor is conducted every time and the 2nd monitor is activated if necessary.

·

The 1st monitor

While the engine is running and the purge VSV (Vacuum Switching Valve) is on (open), the ECM monitors the purge flow by measuring the EVAP pressure change. If negative pressure is not created, the ECM begins the 2nd monitor.

·

The 2nd monitor

The vent valve is turned on (closed) and the EVAP pressure is then measured. If the variation in the pressure is less than 0.396 kPa [0.0574 psi], the ECM interprets this as the purge VSV being stuck closed, illuminates the MIL and stores DTC P04419C (2 trip detection logic).



Atmospheric pressure check:

In order to ensure reliable malfunction detection, the variation in atmospheric pressure, before and after of the purge flow monitor, is measured by the ECM.



A275994C01
2.271,0.979 2.333,0.552 2.333,0.552 2.552,0.552 false 2.458,1.104 2.646,0.844 2.646,0.844 2.865,0.844 false 4.531,0.958 4.615,0.406 4.615,0.406 4.833,0.406 false 4.896,1.438 4.896,1.083 4.896,1.083 5.042,1.083 false 3.479,2.615 4.104,2.406 4.104,2.406 4.323,2.406 false 3.49,3.302 4.052,3.563 4.052,3.563 4.219,3.563 false 2.292,3.677 2.448,3.677 2.448,3.677 2.729,3.24 false 3,2.979 3,2.635 3,2.635 2.875,2.635 false 4.188,1.688 4.031,1.688 4.031,1.688 4.031,1.531 false 1.188,3.958 1.021,3.958 1.021,3.958 1.021,3.656 false 1.51,2.313 1.573,1.885 1.573,1.885 1.792,1.885 false 0.177,0.135 0.49,0.333 0.313,0.198 10 false *a 0.927,2.833 1.24,3.031 0.313,0.198 10 false *b 2.104,3.583 2.417,3.781 0.313,0.198 10 false *d 4.292,3.49 4.604,3.688 0.313,0.198 10 false *e 1.24,3.885 1.552,4.083 0.313,0.198 10 false *2 0.771,3.344 1.083,3.542 0.313,0.198 10 false *1 5.083,1.01 5.396,1.208 0.313,0.198 10 false *10 4.875,0.354 5.188,0.552 0.313,0.198 10 false *11 4.208,1.583 4.521,1.781 0.313,0.198 10 false *12 2.594,0.479 2.906,0.677 0.313,0.198 10 false *3 2.917,0.771 3.229,0.969 0.313,0.198 10 false *4 3.292,1.833 3.604,2.031 0.313,0.198 10 false *5 2.719,2.573 3.031,2.771 0.313,0.198 10 false *6 4.375,2.333 4.688,2.531 0.313,0.198 10 false *7 3.958,3.938 4.271,4.135 0.313,0.198 10 false *8 5.979,1.979 6.292,2.177 0.313,0.198 10 false *9 1.823,1.802 2.135,2 0.313,0.198 10 false *c
*1 ECM *2 Soak Timer
*3 Fuel Cap *4 Canister Filter
*5 Fuel Tank Assembly *6 Canister Pressure Sensor
*7 Reference Orifice (0.02 inch) *8 Canister Pump Module
*9 Canister *10 Fuel Vapor-containment Valve
*11 Fuel Outlet Valve (Relief Valve) *12 Fuel Tank Pressure Sensor
*a EVAP Purge Flow *b to Intake Manifold
*c Purge VSV (on) *d Leak Detection Pump (off)
*e Vent Valve (off) - -


CAUTION / NOTICE / HINT

NOTICE:
·

Inspect the fuses for circuits related to this system before performing the following procedure.

·

The GTS is required to conduct the following diagnostic troubleshooting procedure.



HINT:
·

Using the GTS monitor results enables the EVAP (Evaporative Emission) system to be confirmed.

·

Read freeze frame data using the GTS. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.



CONFIRMATION DRIVING PATTERN

HINT:

After a repair, check Monitor Status by performing the Key-Off Monitor Confirmation and Purge Flow Monitor Confirmation described below.


KEY-OFF MONITOR CONFIRMATION


NOTICE:
·

The Evaporative System Check (Automatic Mode) consists of 9 steps performed automatically by the GTS. It takes a maximum of approximately 40 minutes.

·

Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable.

·

Do not start the engine during this operation.

·

When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the fuel temperature less than 35°C (95°F).



1.

Connect the GTS to the DLC3.

2.

Turn the ignition switch to ON.

3.

Turn the GTS on.

4.

Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

5.

Turn the ignition switch off and wait for at least 30 seconds.

6.

Turn the ignition switch to ON.

7.

Turn the GTS on.

8.

Enter the following menus: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode.

9.

After the "Evaporative System Check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine / Utility / All Readiness.

10.

Input the DTC: P043E00, P043F00, P04417E, P04417F, P044672, P44673, P045011, P045015, P04502F, P142000, P142100, P142200, P142300, P145011, P145015, P14502A, P14502F, P24007E, P24007F, P24507E or P24517F.

11.

Check the DTC judgment result.

GTS Display Description
NORMAL
·

DTC judgment completed

·

System normal


ABNORMAL
·

DTC judgment completed

·

System abnormal


INCOMPLETE
·

DTC judgment not completed

·

Perform driving pattern after confirming DTC enabling conditions



HINT:
·

If the judgment result is NORMAL, the system is normal.

·

If the judgment result is ABNORMAL, the system is malfunctioning.





PURGE FLOW MONITOR CONFIRMATION (P04419C)


HINT:

Perform this monitor confirmation after the Key-Off Monitor Confirmation shows Complete.


1.

Connect the GTS to the DLC3.

2.

Turn the ignition switch to ON.

3.

Turn the GTS on.

4.

Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

5.

Turn the ignition switch off and wait for at least 30 seconds.

6.

Turn the ignition switch to ON.

7.

Turn the GTS on.

8.

Put the engine in Inspection Mode (Maintenance Mode).

Click hereGeneral>INTRODUCTION>REPAIR INSTRUCTION>INSPECTION MODE PROCEDURE

9.

Start the engine and wait 15 minutes or more.

10.

Enter the following menus: Powertrain / Engine / Trouble Codes.

11.

Read the pending DTCs.

HINT:
·

If a pending DTC is output, the system is malfunctioning.

·

If a pending DTC is not output, perform the following procedure.



12.

Enter the following menus: Powertrain / Engine / Utility / All Readiness.

13.

Input the DTC: P04419C.

14.

Check the DTC judgment result.

GTS Display Description
NORMAL
·

DTC judgment completed

·

System normal


ABNORMAL
·

DTC judgment completed

·

System abnormal


INCOMPLETE
·

DTC judgment not completed

·

Perform driving pattern after confirming DTC enabling conditions



HINT:
·

If the judgment result is NORMAL, the system is normal.

·

If the judgment result is ABNORMAL, the system is malfunctioning.





PROCEDURE

1.CONFIRM DTC
a.

Turn the ignition switch off and wait 10 seconds.


b.

Turn the ignition switch to ON.


c.

Turn the ignition switch off and wait 10 seconds.


d.

Turn the ignition switch to ON.


e.

Enter the following menus.

Powertrain > Engine > Trouble Codes
50001 372

f.

Confirm the DTCs and freeze frame data.

EVAP Related DTCs
DTC No. Monitoring Item
P043E00 Reference orifice low flow
P043F00 Reference orifice high flow
P04417E Purge VSV stuck open
P04417F Purge VSV stuck closed
P04419C Insufficient purge flow
P044672 Vent valve (built into canister pump module) stuck open
P046673 Vent valve (built into canister pump module) stuck closed
P142000 Small leak from canister
P142100 Gross leak from canister
P142200 Small leak from fuel tank
P142300 Gross leak from fuel tank
P24007E Leak detection pump stuck on
P24007F Leak detection pump stuck off
P24507E Fuel vapor-containment valve stuck open
P24517F Fuel vapor-containment valve stuck closed

DTC and Malfunction Cross-Reference
Malfunction Output DTC
Reference orifice low flow P043E00, P043F00, P044672, P24007E, P24007F
Reference orifice high flow P043E00, P043F00, P044672, P24007E, P24007F
Leak detection pump stuck off P043E00, P043F00, P044672, P24007E, P24007F
Leak detection pump stuck on P043E00, P043F00, P044672, P24007E, P24007F
Vent valve (built into canister pump module) stuck closed P043E00, P043F00, P044672, P24007E, P24007F
Vent valve (built into canister pump module) stuck open (vent) P046673
Insufficient purge flow P04419C
Purge VSV stuck open P04417E, P142100
Purge VSV stuck closed P04417F
Small leak from canister P142000
Gross leak from canister P04417E, P142100
Small leak from fuel tank P142200
Gross leak from fuel tank P142300
Fuel vapor-containment valve stuck open P142300, P24507E
Fuel vapor-containment valve stuck closed P24517F


Result:
Proceed to
NEXT



NEXT

2.CLEAR DTC
2.CLEAR DTC
a.

Clear the DTCs.

Powertrain > Engine > Clear DTCs
50002 372

b.

Turn the ignition switch off and wait for at least 30 seconds.


Result:
Proceed to
NEXT



NEXT

3.PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE)
3.PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE)
NOTICE:
·

The Evaporative System Check (Automatic Mode) consists of 9 steps performed automatically by the GTS. It takes a maximum of approximately 40 minutes.

·

Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable.

·

Do not start the engine during this operation.

·

When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor will from and any check result will be inaccurate. When performing the Evaporative System Check, keep the fuel temperature less than 35°C (95°F).



a.

Remove the fuel tank cap assembly and reinstall the fuel tank cap assembly.


b.

Enter the following menus.

Powertrain > Engine > Utility
Tester Display
Evaporative System Check
50005 372 33

c.

After the Evaporative System Check is completed, check for pending DTCs.

Result:
Result Conclusion Proceed to
A pending DTC is stored A malfunction occurs and troubleshooting can be performed A
A pending DTC is not stored No malfunctions occur and it is difficult to perform troubleshooting B
A pending DTC is not stored and any of the current DTCs (P142200, P142300, or P24507E) is stored DTCs are stored because the fuel tank cap assembly is not tightened firmly C




A

4.IDENTIFY TROUBLE AREAS USING DTC

B

6.CLEAR DTC

C

END

4.IDENTIFY TROUBLE AREAS USING DTC
a.

Refer to the table below to determine the next procedure according to the output DTCs.

Result:
Malfunction Output DTC Proceed to
Reference orifice low flow P043E00, P043F00, P044672, P24007E, P24007F B
Reference orifice high flow P043E00, P043F00, P044672, P24007E, P24007F
Leak detection pump stuck off P043E00, P043F00, P044672, P24007E, P24007F
Leak detection pump stuck on P043E00, P043F00, P044672, P24007E, P24007F
Vent valve (built into canister pump module) stuck closed P043E00, P043F00, P044672, P24007E, P24007F
Vent valve (built into canister pump module) stuck open (vent) P046673 C
Insufficient purge flow P04419C A
Purge VSV stuck open P04417E, P142100
Purge VSV stuck closed P04417F
Small leak from canister P142000 D
Gross leak from canister P04417E, P142100 A
Small leak from fuel tank P142200
Gross leak from fuel tank P142300
Fuel vapor-containment valve stuck open P142300, P24507E
Fuel vapor-containment valve stuck closed P24517F




A

5.IDENTIFY TROUBLE AREAS USING DTC

B

37.PERFORM ACTIVE TEST USING GTS (ACTIVATE THE VACUUM PUMP)

C

39.CHECK CANISTER PUMP MODULE (VENT VALVE POWER SOURCE CIRCUIT)

D

22.PERFORM ACTIVE TEST USING GTS (ACTIVATE THE VSV FOR EVAP CONTROL)
5.IDENTIFY TROUBLE AREAS USING DTC
a.

Refer to the table below to determine the next procedure according to the output DTCs.

Result:
Malfunction Output DTC Proceed to
Insufficient purge flow P04419C A
Purge VSV stuck open P04417E, P142100
Purge VSV stuck closed P04417F
Gross leak from canister P04417E, P142100
Small leak from fuel tank P142200 B
Gross leak from fuel tank P142300
Fuel vapor-containment valve stuck open P142300, P24507E C
Fuel vapor-containment valve stuck closed P24517F




A

21.CHECK VACUUM HOSE (PURGE VSV - INTAKE MANIFOLD)

B

17.CHECK FUEL TANK CAP ASSEMBLY

C

33.INSPECT FUEL VAPOR-CONTAINMENT VALVE
6.CLEAR DTC
a.

Clear the DTCs.

Powertrain > Engine > Clear DTCs
50002 372

b.

Turn the ignition switch off and wait for at least 30 seconds.


Result:
Proceed to
NEXT



NEXT

7.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE)
7.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE)
HINT:

In the manual operation check, the EVAP system can be checked in several steps. Valve operation and pressure in each step can also be checked.


a.

Remove the fuel tank cap assembly and reinstall the fuel tank cap assembly.


b.

Enter the following menus.

Powertrain > Engine > Utility
Tester Display
Evaporative System Check
50005 372 33

NOTICE:
·

The Evaporative System Check (Automatic Mode) consists of 9 steps performed automatically by the GTS. It takes a maximum of approximately 40 minutes.

·

Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable.

·

Do not start the engine during this operation.

·

When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor will from and any check result will be inaccurate. When performing the Evaporative System Check, keep the fuel temperature less than 35°C (95°F).



GTS Display
Display Detail
Atmosphere Press Check The number of steps and step names are displayed
Purge VSV Purge VSV condition is displayed: ON (Open)/OFF (Closed)
Vent Valve Vent valve condition is displayed: ON (Closed)/OFF (Open)
Vacuum Pump Leak detection pump condition is displayed: ON/OFF
Fuel VCV Fuel vapor-containment valve condition is displayed: ON (Open)/OFF (Closed)
Tank Pressure Fuel tank pressure (Absolute pressure)
Vapor Pressure (Gauge) EVAP pressure (Gauge pressure measured at canister pump module)
Vapor Pressure (Absolute) EVAP pressure (Absolute pressure measured at canister pump module)
Time (Step) Elapsed time for each step
Time (VENT) Accumulated vent valve open time
Time (PUMP) Accumulated leak detection pump operating time

Manual Operation Step
Step Operations
1. Atmosphere Pressure Check Atmospheric pressure measurement
2. Reference Pressure (0.02 inch) Check 1 First reference pressure measurement
3. Canister Leak Check EVAP system pressure measurement
4. Purge VSV Check Purge VSV monitor
5. Reference Pressure (0.02 inch) Check 2 Second reference pressure measurement
6. Resetting Resetting
7. Tank Leak Check Fuel tank pressure measurement
8. Reference Pressure (0.02 inch) Check 3 Third reference pressure measurement
9. Atmosphere Pressure Check Atmospheric pressure measurement

A318930E01
2.51,1.344 2.667,0.75 2.667,0.75 2.833,0.75 false 3.844,2.198 3.917,1.948 3.917,1.948 4.083,1.948 false 2.167,1.5 2.458,1.781 2.458,1.781 2.615,1.781 false 3.563,2.99 3.635,2.74 3.635,2.74 3.781,2.74 false 2.427,3.823 2.479,4.125 2.479,4.125 2.594,4.125 false 4.76,3.708 4.885,4.01 4.885,4.01 5.052,4.01 false 4.74,3.135 4.865,3.438 4.865,3.438 5,3.438 false 4.542,2.323 4.667,2.625 4.667,2.625 4.833,2.625 false 0.271,0.125 2.104,0.323 1.833,0.198 10 false Timing Chart 0.302,1.26 1.833,1.458 1.531,0.198 10 false Vent Valve 0.25,1.458 2.854,1.656 2.604,0.198 10 false (Switching Valve) 0.25,2.135 1.208,2.896 0.958,0.76 10 false Leak Detection Pump 0.594,3.073 1.969,3.271 1.375,0.198 10 false Purge VSV 0.135,3.823 1.271,4.406 1.135,0.583 10 false containment Valve 0.427,4.469 1.146,5.302 0.719,0.833 10 false Fuel Tank Pressure 0.302,5.354 2.292,5.552 1.99,0.198 10 false EVAP Pressure 0.948,6.281 1.563,6.479 0.615,0.198 10 false Step 2.865,0.677 4.396,0.875 1.531,0.198 10 false ON (Close) 3.833,2.656 5.365,2.854 1.531,0.198 10 false ON (Open) 5.135,3.938 6.667,4.135 1.531,0.198 10 false ON (Open) 5.042,3.365 5.875,3.656 0.833,0.292 10 false OFF (Close) 2.625,4.042 4.156,4.24 1.531,0.198 10 false OFF (Close) 2.656,1.698 4.188,1.896 1.531,0.198 10 false OFF (Vent) 4.156,1.865 4.469,2.063 0.313,0.198 10 false ON 4.917,2.552 5.229,2.75 0.313,0.198 10 false OFF 1.5,6.281 1.677,6.5 0.177,0.219 10 false 1 2.802,6.271 2.979,6.49 0.177,0.219 10 false 3 2.031,6.271 2.208,6.49 0.177,0.219 10 false 2 4.073,6.281 4.25,6.5 0.177,0.219 10 false 5 3.573,6.281 3.75,6.5 0.177,0.219 10 false 4 4.5,6.271 4.677,6.49 0.177,0.219 10 false 6 5.24,6.271 5.417,6.49 0.177,0.219 10 false 7 6.125,6.281 6.302,6.5 0.177,0.219 10 false 8 6.667,6.271 6.844,6.49 0.177,0.219 10 false 9 0.146,3.635 1.281,3.865 1.135,0.229 10 false Fuel Vapor-

Result:
Proceed to
NEXT



NEXT

8.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 1)
8.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 1)
a.

Select step 1 and wait 10 seconds.


Result:
Proceed to
NEXT



NEXT

9.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 2)
9.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 2)
a.

Perform step 2.


b.

Check the evaporative pressure 2 seconds after the leak detection pump is activated* (A).

*: The leak detection pump begins to operate at the start of step 2.

A318931E01
0.917,5.365 1.094,5.365 1.094,5.365 1.365,5.01 false 4.875,4.104 5.094,3.75 5.094,3.75 5.292,3.75 false 1.823,4.885 2.156,4.302 2.156,4.302 2.427,4.302 false 4.958,4.875 5.115,4.604 5.115,4.604 5.302,4.604 false 1.781,5.583 1.865,5.708 1.865,5.708 2.031,5.708 false 1.771,0.094 2.688,0.292 0.917,0.198 10 false Step 2 0.104,0.677 1.177,1.156 1.073,0.479 10 false Vent Valve (Switching Valve) 0.208,1.594 1.24,2.344 1.031,0.75 10 false Leak Detection Pump 0.5,2.521 1.875,2.719 1.375,0.198 10 false Purge VSV 0.052,3.021 1.188,4.063 1.135,1.042 10 false Fuel Vapor-containment Valve 0.417,3.917 1.125,4.896 0.708,0.979 10 false Fuel Tank Pressure 0.208,4.813 2.198,5.01 1.99,0.198 10 false EVAP Pressure 0.073,5.271 1.146,5.469 1.073,0.198 10 false 100 kPa(abs) 1.604,3.344 2.448,3.698 0.844,0.354 10 true OFF (Close) 1.604,0.99 2.354,1.344 0.75,0.354 10 true OFF (Vent) 1.646,2.625 2.479,2.969 0.833,0.344 10 true OFF (Close) 1.865,1.667 2.177,1.865 0.313,0.198 10 false ON 2.063,5.625 2.76,5.927 0.698,0.302 10 true 2 seconds 1.698,6.635 3.229,6.833 1.531,0.198 10 false 360 seconds 1.771,7.198 2.083,7.396 0.313,0.198 10 false : OK 2.656,7.198 3.875,7.469 1.219,0.271 10 false : Malfunction 5.354,3.677 6.771,4 1.417,0.323 10 true Atmospheric Pressure 5.354,4.51 6.76,4.833 1.406,0.323 10 true Atmospheric Pressure 2.51,4.156 4.542,4.823 2.031,0.667 10 true Leak Detection Pump Stuck OFF or Reference Orifice High-flow


c.

Check the evaporative (EVAP) pressure again when it has stabilized (B). This pressure is the first reference pressure.

A318932E01
2.667,5.479 2.667,4.646 2.667,4.646 2.854,4.646 false 5.031,4.26 5.135,3.958 5.135,3.958 5.323,3.958 false 5.052,5.042 5.188,4.781 5.188,4.781 5.375,4.781 false 2.302,5.885 2.625,6.719 2.625,6.719 2.813,6.719 false 2.708,7.344 4.396,7.542 1.688,0.198 10 false : Malfunction 1.792,7.344 2.406,7.594 0.615,0.25 10 false : OK 1.656,6.729 3.344,6.927 1.688,0.198 10 false 360 seconds 1.823,0.25 2.74,0.448 0.917,0.198 10 false Step 2 1.656,1.135 2.729,1.5 1.073,0.365 10 true OFF (Vent) 1.646,2.792 2.438,3.135 0.792,0.344 10 true OFF (Close) 1.635,3.49 2.417,3.813 0.781,0.323 10 true OFF (Close) 1.906,1.823 2.531,2.083 0.625,0.26 10 false ON 0.094,0.865 1.188,1.292 1.094,0.427 10 false Vent Valve (Switching Valve) 0.49,2.677 1.51,3.115 1.021,0.438 10 false Purge VSV 0.24,1.76 1.271,2.583 1.031,0.823 10 false Leak Detection Pump 0.083,3.25 1.219,4.104 1.135,0.854 10 false Fuel Vapor-containment Valve 0.427,4.063 1.094,4.896 0.667,0.833 10 false Fuel Tank Pressure 0.208,4.979 1.604,5.635 1.396,0.656 10 false EVAP Pressure 5.417,3.865 6.823,4.198 1.406,0.333 10 true Atmospheric Pressure 2.896,4.542 4.344,4.885 1.448,0.344 10 true 1st Reference Pressure 2.885,6.635 4.625,7.271 1.74,0.635 10 false Reference Orifice Clogged 5.417,4.688 6.802,5.01 1.385,0.323 10 true Atmospheric Pressure


Result:
Result Suspected Trouble Area Proceed to
EVAP pressure in inspection item (B) is between -4.85 and -1.068 kPa(gauge) [-0.7 and -0.155 psi(gauge)] Not yet determined A
EVAP pressure in inspection item (B) is -1.068 kPa(gauge) [-0.155 psi(gauge)] or higher
·

Reference orifice high-flow

·

Leak detection pump stuck off


B
EVAP pressure in inspection item (B) is less than -4.85 kPa(gauge) [-0.7 psi(gauge)] Reference orifice clogged C



A

10.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 3)

B

37.PERFORM ACTIVE TEST USING GTS (ACTIVATE THE VACUUM PUMP)

C

43.REPLACE CANISTER PUMP MODULE
10.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 3)
a.

Perform step 3.


b.

Check the evaporative (EVAP) pressure change in step 3 (A).

A318933E01
4.708,4.385 4.917,3.99 4.917,3.99 5.146,3.99 false 4.729,5.156 4.927,4.854 4.927,4.854 5.156,4.854 false 2.573,5.583 2.781,4.615 2.781,4.615 3.01,4.615 false 2.417,0.26 3.333,0.458 0.917,0.198 10 false Step 3 0.021,0.979 1.135,1.542 1.115,0.563 10 false Vent Valve (Switching Valve) 0.073,1.844 1.063,2.656 0.99,0.813 10 false Leak Detection Pump 0.281,2.771 1.813,2.969 1.531,0.198 10 false Purge VSV 0.198,3.281 0.979,4.229 0.781,0.948 10 false Fuel Vapor-containment Valve 0.333,4.208 0.979,5.094 0.646,0.885 10 false Fuel Tank Pressure 0.073,5.094 1.604,5.292 1.531,0.198 10 false EVAP Pressure 1.594,7.458 3.125,7.656 1.531,0.198 10 false : OK 2.542,1.938 3.042,2.292 0.5,0.354 10 false ON 5.219,3.896 6.604,4.229 1.385,0.333 10 true Atmospheric Pressure 2.49,7.458 4.021,7.656 1.531,0.198 10 false : Malfunction 2.229,2.896 3.052,3.281 0.823,0.385 10 true OFF (Close) 2.25,3.615 3.052,4.042 0.802,0.427 10 true OFF (Close) 2.271,1.125 3.042,1.49 0.771,0.365 10 true ON (Close) 2.146,6.906 3.677,7.104 1.531,0.198 10 false Within 15 minutes 5.219,4.781 6.625,5.073 1.406,0.292 10 true Atmospheric Pressure 3.094,4.531 4.51,4.917 1.417,0.385 10 true Vent Valve Stuck OFF


Result:
Result Suspected Trouble Area Proceed to
EVAP pressure change in inspection item (A) is 0.3 kPa [0.04 psi] or higher Not yet determined A
EVAP pressure change in inspection item (A) is less than 0.3 kPa [0.04 psi] Vent valve (switching valve) stuck off B


c.

Check the fuel tank pressure change in step 3 (B).

A318934E01
4.885,4.333 5.063,3.938 5.063,3.938 5.281,3.938 false 4.896,5.115 5.042,4.823 5.042,4.823 5.26,4.823 false 2.854,4.635 2.99,4.5 2.99,4.5 3.125,4.5 false 2.5,0.323 3.417,0.521 0.917,0.198 10 false Step 3 2.344,3.552 3.146,3.896 0.802,0.344 10 true OFF (Close) 0.063,0.927 1.146,1.344 1.083,0.417 10 false Vent Valve (Switching Valve) 0.135,1.833 1.125,2.635 0.99,0.802 10 false Leak Detection Pump 0.344,2.76 2.948,2.958 2.604,0.198 10 false Purge VSV 0.177,5.042 2.781,5.24 2.604,0.198 10 false EVAP Pressure 0.438,4.156 1.083,5.073 0.646,0.917 10 false Fuel Tank Pressure 2.271,6.896 4.875,7.094 2.604,0.198 10 false Within 15 minutes 2.604,7.417 5.208,7.615 2.604,0.198 10 false : Malfunction 1.708,7.427 2.24,7.802 0.531,0.375 10 false : OK 5.365,3.854 6.75,4.25 1.385,0.396 10 true Atmospheric Pressure 3.177,4.438 4.646,5.063 1.469,0.625 10 true Fuel Vapor-containment Valve Stuck Open 2.375,1.083 3.146,1.469 0.771,0.385 10 true ON (Close) 2.635,1.885 3.552,2.083 0.917,0.198 10 false ON 2.354,2.844 3.146,3.188 0.792,0.344 10 true OFF (Close) 5.333,4.74 6.708,5.073 1.375,0.333 10 true Atmospheric Pressure 0.031,3.302 1.146,4.135 1.115,0.833 10 false Fuel Vapor-containment Valve


Result:
Result Suspected Trouble Area Proceed to
Fuel tank pressure change in inspection item (B) is less than 0.5 kPa [0.07 psi] Not yet determined A
Fuel tank pressure change in inspection item (B) is higher than 0.5 kPa [0.07 psi] Fuel vapor-containment valve stuck on (open) C


d.

Check the EVAP pressure again when it has stabilized. This pressure is the canister leak pressure.


e.

Compare the first reference pressure with the canister leak pressure.

A318935E01
4.917,4.292 5.125,3.938 5.125,3.938 5.302,3.938 false 1.208,5.51 1.073,5.948 1.073,5.948 0.958,5.948 false 4.927,5.073 5.125,4.771 5.125,4.771 5.302,4.771 false 2.813,5.073 3.135,4.5 3.135,4.5 3.313,4.5 false 3.135,5.406 3.396,5.823 3.396,5.823 3.573,5.823 false 3.188,5.667 3.604,6.75 3.604,6.75 3.781,6.75 false 2.49,0.302 3.406,0.5 0.917,0.198 10 false Step 3 2.448,1.042 3.167,1.396 0.719,0.354 10 true ON (Close) 2.406,3.51 3.198,3.885 0.792,0.375 10 true OFF (Close) 0.135,0.917 1.208,1.396 1.073,0.479 10 false Vent Valve (Switching Valve) 0.219,1.802 1.26,2.479 1.042,0.677 10 false Leak Detection Pump 0.458,2.698 1.99,2.896 1.531,0.198 10 false Purge VSV 0.052,3.271 1.177,4.323 1.125,1.052 10 false Fuel Vapor-containment Valve 0.323,4.115 1.01,4.833 0.688,0.719 10 false Fuel Tank Pressure 0.208,5.01 1.74,5.208 1.531,0.198 10 false EVAP Pressure 0.052,5.854 0.906,6.844 0.854,0.99 10 false 1st Reference Pressure 2.26,6.896 3.792,7.094 1.531,0.198 10 false Within 15 minutes 2.625,7.375 4.156,7.573 1.531,0.198 10 false : Malfunction 1.719,7.385 2.448,7.813 0.729,0.427 10 false : OK 2.646,1.854 3.563,2.052 0.917,0.198 10 false ON 2.417,2.802 3.198,3.146 0.781,0.344 10 true OFF (Close) 5.365,3.865 6.729,4.219 1.365,0.354 10 true Atmospheric Pressure 5.365,4.677 6.75,5.031 1.385,0.354 10 true Atmospheric Pressure 3.375,4.698 4.854,5.042 1.479,0.344 10 true Purge VSV Stuck Open 3.854,6.667 5.385,6.865 1.531,0.198 10 false Canister leak Pressure 3.646,5.75 4.458,6.063 0.813,0.313 10 true Small Leak 3.365,4.385 4.167,4.688 0.802,0.302 10 true Gross Leak


Result:
Result Suspected Trouble Area Proceed to
Lower than first reference pressure Not yet determined A
First reference pressure or higher
·

Purge VSV stuck open

·

Leakage from line between purge VSV and canister


D



A

11.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 4)

B

39.CHECK CANISTER PUMP MODULE (VENT VALVE POWER SOURCE CIRCUIT)

C

33.INSPECT FUEL VAPOR-CONTAINMENT VALVE

D

28.CHECK HOSES (PURGE VSV - CANISTER)
11.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 4)
a.

Perform step 4.


b.

Check the evaporative (EVAP) pressure change in step 4 (A).

A318936E02
3.885,5.719 4.021,5.865 4.021,5.865 4.177,5.865 false 4.958,4.333 5.219,3.927 5.219,3.927 5.406,3.927 false 5.052,5.115 5.229,4.823 5.229,4.823 5.417,4.823 false 3.375,0.26 4.292,0.458 0.917,0.198 10 false Step 4 3.302,1.219 4.01,1.521 0.708,0.302 10 true ON (Close) 0.188,0.927 1.25,1.365 1.063,0.438 10 false Vent Valve (Switching Valve) 0.271,1.865 1.219,2.698 0.948,0.833 10 false Leak Detection Pump 0.563,2.76 2.094,2.958 1.531,0.198 10 false Purge VSV 0.094,3.323 1.219,4.365 1.125,1.042 10 false Fuel Vapor-containment Valve 0.51,4.177 1.188,4.885 0.677,0.708 10 false Fuel Tank Pressure 0.271,5.052 1.802,5.25 1.531,0.198 10 false EVAP Pressure 1.844,7.448 2.344,7.823 0.5,0.375 10 false : OK 3.229,6.771 4.76,6.969 1.531,0.198 10 false 10 seconds 2.729,7.438 4.26,7.635 1.531,0.198 10 false : Malfunction 4.24,5.792 5.813,6.104 1.573,0.313 10 true Purge VSV Stuck Closed 5.479,3.854 6.865,4.177 1.385,0.323 10 true Atmospheric Pressure 5.49,4.729 6.865,5.063 1.375,0.333 10 true Atmospheric Pressure 3.479,1.896 4.25,2.156 0.771,0.26 10 false ON 3.25,2.865 4.031,3.229 0.781,0.365 10 true ON (Open) 3.229,3.563 4,3.927 0.771,0.365 10 true OFF (Close)


Result:
Result Suspected Trouble Area Proceed to
EVAP pressure increases by 0.3 kPa [0.04 psi] or higher within 10 seconds of proceeding from step 3 to 4 Not yet determined A
Variation in EVAP pressure is less than 0.3 kPa [0.04 psi] for 10 seconds, after proceeding from step 3 to 4 Purge VSV stuck closed B



A

12.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 5)

B

21.CHECK VACUUM HOSE (PURGE VSV - INTAKE MANIFOLD)
12.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 5)
a.

Perform step 5 and wait 60 seconds.


b.

Check the evaporative (EVAP) pressure. This pressure is the second reference pressure.


Result:
Proceed to
NEXT



NEXT

13.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 6)
13.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 6)
a.

Perform step 6 and wait 5 seconds.


Result:
Proceed to
NEXT



NEXT

14.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 7)
14.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 7)
a.

Perform step 7.


b.

Check that the tank pressure and EVAP pressure change.


c.

Check the tank pressure again when it has stabilized. This pressure is the fuel tank leak pressure.

A318937E02
6.615,4.271 6.458,3.875 6.458,3.875 6.333,3.875 false 4.833,5.063 5.083,4.781 5.083,4.781 5.281,4.781 false 4.875,4.281 4.396,3.729 4.396,3.729 4.271,3.729 false 4.802,1.021 5.51,1.385 0.708,0.365 10 true ON (Close) 4.885,0.26 5.802,0.458 0.917,0.198 10 false Step 7 0.052,0.885 1.115,1.344 1.063,0.458 10 false Vent Valve (Switching Valve) 0.25,1.833 1.281,2.5 1.031,0.667 10 false Leak Detection Pump 0.427,2.677 1.958,2.875 1.531,0.198 10 false Purge VSV 0.51,4.115 1.156,4.833 0.646,0.719 10 false Fuel Tank Pressure 0.208,4.979 1.74,5.177 1.531,0.198 10 false EVAP Pressure 1.531,3.635 4.24,3.99 2.708,0.354 10 true Fuel Vapor-containment Valve Stuck Closed 4.802,2.781 5.604,3.115 0.802,0.333 10 true OFF (Close) 5.052,1.833 5.615,2.115 0.563,0.281 10 false ON 4.823,3.344 5.521,3.688 0.698,0.344 10 true ON (Open) 4.938,3.792 6.313,4.115 1.375,0.323 10 true Atmospheric Pressure 5.344,4.698 6.75,5.01 1.406,0.313 10 true Atmospheric Pressure 4.708,6.708 6.177,7.458 1.469,0.75 10 false Within 15 minutes 2.615,7.365 4.083,7.698 1.469,0.333 10 false : Malfunction 1.75,7.375 2.344,7.781 0.594,0.406 10 false : OK 0.063,3.167 1.188,4.448 1.125,1.281 10 false Fuel Vapor-containment Valve


Result:
Result Suspected Trouble Area Proceed to
Fuel tank pressure change is higher than 0.5 kPa [0.07 psi] and EVAP pressure is higher than 0.9 kPa(gauge) [0.1 psi(gauge)] Not yet determined A
Fuel tank pressure change is less than 0.5 kPa [0.07 psi] and EVAP pressure is less than 0.9 kPa(gauge) [0.1 psi(gauge)] Fuel vapor-containment valve stuck OFF (closed) B



A

15.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 8)

B

33.INSPECT FUEL VAPOR-CONTAINMENT VALVE
15.PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 8)
a.

Perform step 8 and wait 60 seconds.


b.

Check the evaporative (EVAP) pressure. This pressure is the third reference pressure.


c.

Compare the fuel tank pressure checked in step 7 with the third reference pressure.

A318938E01
3.219,5.188 3.073,4.875 3.073,4.875 2.906,4.875 false 4.865,4.396 5.104,4.083 5.104,4.083 5.292,4.083 false 5.073,5.458 5.146,4.875 5.146,4.875 5.302,4.875 false 4.948,5.208 4.927,4.833 4.927,4.833 4.781,4.833 false 4.906,5.656 5.177,6.823 5.177,6.823 5.031,6.823 false 5.896,0.354 6.813,0.552 0.917,0.198 10 false Step 8 5.771,1.271 6.49,1.625 0.719,0.354 10 true OFF (Vent) 0.135,0.979 1.208,1.427 1.073,0.448 10 false Vent Valve (Switching Valve) 0.281,1.885 1.24,2.604 0.958,0.719 10 false Leak Detection Pump 0.469,2.823 2,3.021 1.531,0.198 10 false Purge VSV 0.063,3.333 1.188,4.25 1.125,0.917 10 false Fuel Vapor-containment Valve 0.542,4.24 1.156,4.99 0.615,0.75 10 false Fuel Tank Pressure 0.219,5.125 1.75,5.323 1.531,0.198 10 false EVAP Pressure 1.51,4.781 2.885,5.135 1.375,0.354 10 true Atmospheric Pressure 5.354,3.979 6.771,4.323 1.417,0.344 10 true Atmospheric Pressure 5.75,2.917 6.531,3.24 0.781,0.323 10 true OFF (Close) 5.969,1.958 6.344,2.344 0.375,0.385 10 false ON 5.75,3.615 6.542,3.99 0.792,0.375 10 true OFF (Close) 5.792,6.833 7.01,7.24 1.219,0.406 10 false 60 seconds 2.667,7.479 4.781,7.74 2.115,0.26 10 false : Malfunction 1.781,7.49 2.74,7.729 0.958,0.24 10 false : OK 5.354,4.781 6.729,5.125 1.375,0.344 10 true Fuel Tank Small Leak 3.396,4.76 4.771,5.094 1.375,0.333 10 true Fuel Tank Gross Leak 3.406,6.729 4.99,7.188 1.583,0.458 10 false Third Reference Pressure


Result:
Result Suspected Trouble Area Proceed to
Lower than third reference pressure Not yet determined A
Third reference pressure or higher Leakage from line between fuel vapor-containment valve and fuel tank B



A

16.PERFORM CONFIRMATION DRIVING PATTERN

B

17.CHECK FUEL TANK CAP ASSEMBLY
16.PERFORM CONFIRMATION DRIVING PATTERN
a.

Refer to Confirmation Driving Pattern.


Result:
Proceed to
NEXT



NEXT

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

17.CHECK FUEL TANK CAP ASSEMBLY
a.

Check that the fuel tank cap assembly is correctly installed and confirm that the fuel tank cap assembly meets OEM specifications.


b.

Tighten the fuel tank cap assembly firmly (only one click sound could be heard).

HINT:

If an EVAP tester is available, check the fuel tank cap assembly using the tester.


i.

Remove the fuel tank cap assembly and install it onto a fuel tank cap adapter.


ii.

Connect an EVAP tester pump hose to the adapter, and pressurize the cap to 3.2 to 3.7 kPa(gauge) [0.46 to 0.54 psi(gauge)] using an EVAP tester pump.


iii.

Seal the adapter and wait for 2 minutes.


iv.

Check the pressure. If the pressure is 2 kPa(gauge) [0.3 psi(gauge)] or higher, the fuel tank cap assembly is normal.



Result:
Result Suspected Trouble Area Proceed to
Fuel tank cap assembly correctly installed - A
Fuel tank cap assembly loose
·

Fuel tank cap assembly improperly installed

·

Defective fuel tank cap assembly

·

Fuel tank cap assembly does not meet OEM specifications


B



A

18.CHECK HOSES (FUEL VAPOR-CONTAINMENT VALVE - FUEL TANK)

B

20.REPLACE FUEL TANK CAP ASSEMBLY
18.CHECK HOSES (FUEL VAPOR-CONTAINMENT VALVE - FUEL TANK)
a.

Connect the EVAP pressure tester tool to the canister pump module with the adapter.

A539662C01
1.667,0.25 1.833,0.25 1.833,0.25 2.146,0.646 true 4,1.417 4.167,1.417 4.167,1.417 4.385,1.948 true 5.5,2.5 5.667,2.5 5.667,2.5 5.917,1.99 true 1.479,0.167 1.792,0.323 0.313,0.156 10 false *1 3.802,1.333 4.115,1.49 0.313,0.156 10 false *2 5.323,2.417 5.635,2.573 0.313,0.156 10 false *3
*1 Canister Pump Module *2 Adapter
*3 EVAP Pressure Tester Tool - -



b.

Enter the following menus.

Powertrain > Engine > Active Test
Tester Display
Activate the Fuel Vapor-Containment Valve
50004 372 37

c.

Turn the fuel vapor-containment valve open (on) using the GTS.


d.

Confirm good connection at the canister pump module.


e.

Pressurize the EVAP system to between 3.2 and 3.7 kPa(gauge) [0.46 to 0.54 psi(gauge)].

NOTICE:

Higher than 4.7 kPa(gauge) [0.7 psi(gauge)] of pressure will damage the EVAP system. Pay attention to the pressure.



f.

Apply soapy water to the piping and connections of the EVAP system.


g.

Look for areas where bubbles appear.

HINT:

If the system has leaks, a whistling sound will be heard.



Result:
Proceed to
NEXT



NEXT

19.REPLACE MALFUNCTIONING PART
19.REPLACE MALFUNCTIONING PART
a.

Repair or replace the leak point.


Result:
Proceed to
NEXT



NEXT

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

20.REPLACE FUEL TANK CAP ASSEMBLY
a.

Replace the fuel tank cap assembly.


Result:
Proceed to
NEXT



NEXT

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

21.CHECK VACUUM HOSE (PURGE VSV - INTAKE MANIFOLD)
A539663C01
1.896,0.875 2.333,0.333 2.333,0.333 2.5,0.333 true 1.458,1.51 1.75,1.917 1.75,1.917 1.917,1.917 true 2.542,0.25 2.719,0.417 0.177,0.167 10 true *1 1.948,1.833 2.146,2 0.198,0.167 10 true *2
*1 Purge VSV
*2 Fuel Vapor Feed Hose Assembly (to Intake Manifold)


a.

Disconnect the fuel vapor feed hose assembly (connected to the intake manifold) from the purge VSV.


b.

Put the engine in Inspection Mode (Maintenance Mode).

Powertrain > Hybrid Control > Utility
Tester Display
Inspection Mode
50005 397 2103

c.

Start the engine.


d.

Use your finger to confirm that the hose has suction.

Result:
Test Result Suspected Trouble Area Proceed to
Suction applied EVAP hose between purge VSV and intake manifold normal A
No suction
·

Intake manifold port

·

EVAP hose between purge VSV and intake manifold


B




A

22.PERFORM ACTIVE TEST USING GTS (ACTIVATE THE VSV FOR EVAP CONTROL)

B

30.INSPECT INTAKE MANIFOLD (EVAP PURGE PORT)
22.PERFORM ACTIVE TEST USING GTS (ACTIVATE THE VSV FOR EVAP CONTROL)
A539664C01
2.25,1.094 2.583,0.417 2.583,0.417 2.75,0.417 true 2.083,1.75 1.917,1.75 1.917,1.75 1.573,1.115 true 2.125,1.677 2.344,1.833 0.219,0.156 10 true *1 2.792,0.333 3.01,0.51 0.219,0.177 10 true *2
*1 Purge VSV
*2 Fuel Vapor Feed Hose Assembly (to Canister)


a.

Disconnect the fuel vapor feed hose assembly (connected to the canister) from the purge VSV.


b.

Put the engine in Inspection Mode (Maintenance Mode).

Powertrain > Hybrid Control > Utility
Tester Display
Inspection Mode
50005 397 2103

c.

Start the engine.


d.

Enter the following menus.

Powertrain > Engine > Active Test
Tester Display
Activate the EVAP Purge VSV
50004 372 1

e.

Using the GTS, turn off the purge VSV (Activate the EVAP Purge VSV: OFF).


f.

Use your finger to confirm that the purge VSV has no suction.


g.

Using the GTS, turn on the purge VSV (Activate the EVAP Purge VSV: ON).


h.

Use your finger to confirm that the purge VSV has suction.


Result:
Result Suspected Trouble Area Proceed to
Suction applied when purge VSV turned off
·

Purge VSV stuck open

·

ECM


A
No suction when purge VSV turned on Purge VSV stuck closed
No suction when purge VSV turned off, and suction applied when turned on Purge VSV normal B



A

23.CHECK PURGE VSV

B

28.CHECK HOSES (PURGE VSV - CANISTER)
23.CHECK PURGE VSV
A539665C01
1.667,0.26 1.979,0.458 0.313,0.198 10 false A 0.167,0.156 0.479,0.354 0.313,0.198 10 false *1 2.385,2.406 2.698,2.604 0.313,0.198 10 false A 2.333,1.344 2.646,1.542 0.313,0.198 10 false B 3,3.563 3.313,3.76 0.313,0.198 10 false B
*1 Purge VSV


a.

Remove the purge VSV.


b.

Apply compressed air to the purge VSV, and confirm that no air flows from A to B as shown in the illustration.


c.

Apply auxiliary battery voltage to the terminal of the purge VSV.


d.

While applying compressed air, confirm that air flows from A to B as shown in the illustration.


Result:
Result Proceed to
Air flows from A to B only when auxiliary battery voltage applied to purge VSV. Conclusion: purge VSV is normal A
No air flows from A to B when auxiliary battery voltage is applied to purge VSV. Conclusion: purge VSV is malfunctioning. B
Air flows from A to B when auxiliary battery voltage is not applied to purge VSV. Conclusion: purge VSV is malfunctioning



A

24.CHECK TERMINAL VOLTAGE (POWER SOURCE OF PURGE VSV)

B

27.REPLACE PURGE VSV
24.CHECK TERMINAL VOLTAGE (POWER SOURCE OF PURGE VSV)
A481754C03
0.417,1 0.833,1.25 0.417,0.25 1.167,1.667 1.573,1.271 true 0.146,0.094 0.458,0.292 0.313,0.198 10 false *a 0.5,1.042 0.958,1.24 0.458,0.198 10 false C30 1.042,1.708 1.5,1.906 0.458,0.198 10 false +B
*a Purge VSV


a.

Disconnect the purge VSV connector.


b.

Turn the ignition switch to ON.


c.

Measure the voltage according to the value(s) in the table below.


Result:
Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to
C30-1 (+B) - Body ground Ignition switch ON 11 to 14 V Purge VSV power source normal
·

Wire harness or connector between purge VSV and ECM


A
Other than result above Wire harness or connectors between purge VSV and auxiliary battery B



A

25.CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM)

B

47.REPAIR OR REPLACE HARNESS OR CONNECTOR
25.CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM)
a.

Disconnect the purge VSV connector.


b.

Disconnect the ECM connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
C30-2 (EVP1) - C141-66 (PRG) Always Below 1 Ω
C30-2 (EVP1) or C141-66 (PRG) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

26.REPLACE ECM

NG

47.REPAIR OR REPLACE HARNESS OR CONNECTOR
26.REPLACE ECM

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (ENGINE CONTROL)>ECM>REMOVAL

Result:
Proceed to
NEXT



NEXT

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

27.REPLACE PURGE VSV

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (EMISSION CONTROL)>PURGE VALVE>REMOVAL

Result:
Proceed to
NEXT



NEXT

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

28.CHECK HOSES (PURGE VSV - CANISTER)
a.

Connect the EVAP pressure tester tool to the canister pump module with the adapter.

A539662C01
1.667,0.25 1.833,0.25 1.833,0.25 2.146,0.646 true 4,1.417 4.167,1.417 4.167,1.417 4.385,1.948 true 5.5,2.5 5.667,2.5 5.667,2.5 5.917,1.99 true 1.479,0.167 1.792,0.323 0.313,0.156 10 false *1 3.802,1.333 4.115,1.49 0.313,0.156 10 false *2 5.323,2.417 5.635,2.573 0.313,0.156 10 false *3
*1 Canister Pump Module *2 Adapter
*3 EVAP Pressure Tester Tool - -



b.

Confirm good connection at the canister pump module.


c.

Pressurize the EVAP system to between 3.2 and 3.7 kPa(gauge) [0.46 and 0.54 psi(gauge)].

NOTICE:

Higher than 4.7 kPa(gauge) [0.7 psi(gauge)] of pressure will damage the EVAP system. Pay attention to the pressure.



d.

Apply soapy water to the piping and connections of the EVAP system.


e.

Look for areas where bubbles appear.

HINT:

If the system has leaks, a whistling sound will be heard.



Result:
Proceed to
NEXT



NEXT

29.REPLACE MALFUNCTIONING PART
29.REPLACE MALFUNCTIONING PART
a.

Repair or replace the leak point.


Result:
Proceed to
NEXT



NEXT

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

30.INSPECT INTAKE MANIFOLD (EVAP PURGE PORT)
a.

Disconnect the fuel vapor feed hose assembly from the intake manifold.


b.

Put the engine in Inspection Mode (Maintenance Mode).

Powertrain > Hybrid Control > Utility
Tester Display
Inspection Mode
50005 397 2103

c.

Start the engine.


d.

Use your finger to confirm that the port of the intake manifold has suction.

Result:
Result Suspected Trouble Area Proceed to
Suction applied EVAP hose between intake manifold and purge VSV A
No suction Intake manifold B




A

31.REPAIR OR REPLACE EVAP HOSE (INTAKE MANIFOLD - PURGE VSV)

B

32.REPAIR OR REPLACE INTAKE MANIFOLD (EVAP PURGE PORT)
31.REPAIR OR REPLACE EVAP HOSE (INTAKE MANIFOLD - PURGE VSV)
a.

Repair or replace the fuel vapor feed hose assembly.


Result:
Proceed to
NEXT



NEXT

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

32.REPAIR OR REPLACE INTAKE MANIFOLD (EVAP PURGE PORT)
a.

Check that the EVAP purge port of the intake manifold is not clogged. If necessary, replace the intake manifold.


Result:
Proceed to
NEXT



NEXT

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

33.INSPECT FUEL VAPOR-CONTAINMENT VALVE

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (EMISSION CONTROL)>FUEL VAPOR CONTAINMENT VALVE>INSPECTION

Result:
Proceed to
OK
NG



OK

34.CHECK HARNESS AND CONNECTOR (FUEL VAPOR-CONTAINMENT VALVE - ECM)

NG

36.REPLACE FUEL VAPOR-CONTAINMENT VALVE
34.CHECK HARNESS AND CONNECTOR (FUEL VAPOR-CONTAINMENT VALVE - ECM)
a.

Disconnect the fuel vapor-containment valve connector.


b.

Disconnect the ECM connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
S19-1 (+UL) - A47-12 (CCA+) Always Below 1 Ω
S19-2 (+UM) - A47-20 (CCA-) Always Below 1 Ω
S19-3 (UN) - A47-19 (CCB-) Always Below 1 Ω
S19-4 (+UP) - A47-11 (CCB+) Always Below 1 Ω
S19-1 (+UL) or A47-12 (CCA+) - Body ground and other terminals Always 10 kΩ or higher
S19-2 (+UM) or A47-20 (CCA-) - Body ground and other terminals Always 10 kΩ or higher
S19-3 (UN) or A47-19 (CCB-) - Body ground and other terminals Always 10 kΩ or higher
S19-4 (+UP) or A47-11 (CCB+) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

35.REPLACE ECM

NG

47.REPAIR OR REPLACE HARNESS OR CONNECTOR
35.REPLACE ECM

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (ENGINE CONTROL)>ECM>REMOVAL

Result:
Proceed to
NEXT



NEXT

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

36.REPLACE FUEL VAPOR-CONTAINMENT VALVE

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (EMISSION CONTROL)>FUEL VAPOR CONTAINMENT VALVE>REMOVAL

Result:
Proceed to
NEXT



NEXT

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

37.PERFORM ACTIVE TEST USING GTS (ACTIVATE THE VACUUM PUMP)
a.

Enter the following menus.

Powertrain > Engine > Active Test
Tester Display
Activate the Vacuum Pump
50004 372 2

b.

Turn the vacuum pump (leak detection pump) on with the GTS.


c.

Touch the canister pump module and check if the leak detection pump is moving.

OK:

Leak detection pump operates.



Result:
Proceed to
OK
NG



OK

38.PERFORM ACTIVE TEST USING GTS (ACTIVATE THE VSV FOR VENT VALVE)

NG

42.CHECK TERMINAL VOLTAGE (CANISTER PUMP MODULE)
38.PERFORM ACTIVE TEST USING GTS (ACTIVATE THE VSV FOR VENT VALVE)
a.

Enter the following menus.

Powertrain > Engine > Active Test
Tester Display
Activate the VSV for Vent Valve
50004 372 3

b.

Touch the canister pump module, use the GTS to turn the vent valve on and off, and check if the vent valve is moving.

OK:

Vent valve vibration can be felt.



Result:
Proceed to
OK
NG



OK

43.REPLACE CANISTER PUMP MODULE

NG

39.CHECK CANISTER PUMP MODULE (VENT VALVE POWER SOURCE CIRCUIT)
39.CHECK CANISTER PUMP MODULE (VENT VALVE POWER SOURCE CIRCUIT)
a.

Disconnect the canister pump module connector.

A539658C04
5.333,0.417 5.75,0.667 0.417,0.25 4.75,2.083 5.24,1.521 true 5.417,0.448 5.875,0.646 0.458,0.198 10 false S18 4.625,0.333 5.083,0.531 0.458,0.198 10 false *a 4.458,2.125 4.917,2.323 0.458,0.198 10 false VLVB
*a Front view of wire harness connector
(to Canister Pump Module) 		- -



b.

Turn the ignition switch to ON.


c.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
S18-5 (VLVB) - Body ground Ignition switch ON 10 to 14 V



Result:
Proceed to
OK
NG



OK

40.INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION)

NG

47.REPAIR OR REPLACE HARNESS OR CONNECTOR
40.INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION)
A539667C01
1.302,0.625 1.75,0.333 true 0.75,1.083 1.219,0.625 true 0.104,0.083 0.417,0.24 0.313,0.156 10 false *a 1.719,0.125 2.333,0.323 0.615,0.198 10 false VGND 0.5,1.115 1.115,1.313 0.615,0.198 10 false VLVB
*a Component without harness connected
(Canister Pump Module)


a.

Disconnect the canister pump module connector.


b.

Apply auxiliary battery voltage to VLVB and VGND terminals of the canister pump module.


c.

Touch the canister pump module to confirm the vent valve operation.


Result:
Result Suspected Trouble Area Proceed to
Operating ECM A
Not operating Vent valve B



A

41.REPLACE ECM

B

43.REPLACE CANISTER PUMP MODULE
41.REPLACE ECM

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (ENGINE CONTROL)>ECM>REMOVAL

Result:
Proceed to
NEXT



NEXT

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

42.CHECK TERMINAL VOLTAGE (CANISTER PUMP MODULE)
a.

Disconnect the canister pump module connector.

A539658C05
5.333,0.417 5.75,0.667 0.417,0.25 4.917,2.167 5.552,1.385 true 6.167,2.167 5.719,1.385 true 5.417,0.448 5.875,0.646 0.458,0.198 10 false S18 4.625,0.333 5.083,0.531 0.458,0.198 10 false *a 4.625,2.208 5.083,2.406 0.458,0.198 10 false MTRB 6.125,2.208 6.583,2.406 0.458,0.198 10 false MGND
*a Front view of wire harness connector
(to Canister Pump Module) 		- -



b.

Turn the ignition switch to ON.


c.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
S18-3 (MTRB) - S18-4 (MGND) Ignition switch ON 10 to 14 V
Ignition switch off Below 3 V



Result:
Proceed to
OK
NG



OK

43.REPLACE CANISTER PUMP MODULE

NG

44.CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND)
43.REPLACE CANISTER PUMP MODULE

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (EMISSION CONTROL)>CANISTER>REMOVAL

Result:
Proceed to
NEXT



NEXT

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

44.CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND)
a.

Disconnect the canister pump module connector.


b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
S18-4 (MGND) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

45.CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)

NG

47.REPAIR OR REPLACE HARNESS OR CONNECTOR
45.CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)
a.

Disconnect the canister pump module connector.


b.

Disconnect the ECM connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
S18-3 (MTRB) - A47-4 (MPMP) Always Below 1 Ω
S18-3 (MTRB) or A47-4 (MPMP) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

46.REPLACE ECM

NG

47.REPAIR OR REPLACE HARNESS OR CONNECTOR
46.REPLACE ECM

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (ENGINE CONTROL)>ECM>REMOVAL

Result:
Proceed to
NEXT



NEXT

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

47.REPAIR OR REPLACE HARNESS OR CONNECTOR
a.

Repair or replace harness or connector.


Result:
Proceed to
NEXT



NEXT

PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)