RM38N0EC _51 Engine / Hybrid System _111785 M20C-FKS, M20D-FKS ENGINE CONTROL _0504416 SFI SYSTEM C

M20C-FKS, M20D-FKS ENGINE CONTROL  SFI SYSTEM  P045011  Evaporative Emission System Pressure Sensor/Switch Circuit Short to Ground  P045015  Evaporative Emission System Pressure Sensor/Switch Circuit Short to Battery or Open  P04502F  Evaporative Emission System Pressure Sensor/Switch Signal Erratic  


DTC SUMMARY

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note
P045011 Evaporative Emission System Pressure Sensor/Switch Circuit Short to Ground EVAP pressure less than 42.11 kPa(abs) [6.11 psi(abs)] for 0.5 seconds.
·

Canister pump module

·

Wire harness or connector (canister pump module - ECM)

·

ECM


Comes on SAE Code: P0452
P045015 Evaporative Emission System Pressure Sensor/Switch Circuit Short to Battery or Open EVAP pressure higher than 123.761 kPa(abs) [17.95 psi(abs)] for 0.5 seconds.
·

Canister pump module

·

Wire harness or connector (canister pump module - ECM)

·

ECM


Comes on SAE Code: P0453
P04502F Evaporative Emission System Pressure Sensor/Switch Signal Erratic Canister pressure sensor output voltage fluctuates frequently in a certain time period.
·

Canister pump module

·

Wire harness or connector (canister pump module - ECM)

·

EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)

·

ECM


Comes on SAE Code: P0451

DTC No. Monitoring Item Detection Timing Detection Logic SAE
P045011 Canister pressure sensor low input
·

Ignition switch ON

·

EVAP monitoring (ignition switch off)


1 trip P0452
P045015 Canister pressure sensor high input
·

Ignition switch ON

·

EVAP monitoring (ignition switch off)


1 trip P0453
P04502F Canister pressure sensor abnormal voltage fluctuation
·

EVAP monitoring (ignition switch off)

·

Engine running


2 trip P0451

HINT:

The canister pressure sensor is built into the canister pump module.


DESCRIPTION

The description can be found in EVAP (Evaporative Emission) System.

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>EVAP System

MONITOR DESCRIPTION

A304708E02
4.583,3.302 5.083,3 true 4.583,1.417 5.083,1.115 true 0.167,0.167 2.667,0.333 2.5,0.167 10 false Canister Pressure Sensor Specification: 1.25,1 2.25,1.167 1,0.167 10 false Output Voltage 1.708,1.427 2.292,1.594 0.583,0.167 10 false 4.900 V 1.708,1.917 2.292,2.083 0.583,0.167 10 false 4.423 V 1.708,2.604 2.292,2.771 0.583,0.167 10 false 1.425 V 1.708,3.021 2.292,3.188 0.583,0.167 10 false 0.450 V 2.802,3.469 3.385,3.635 0.583,0.167 10 false 60 [8.7] 3.375,3.469 4.177,3.677 0.802,0.208 10 false 115 [16.68] 4.208,3.479 5.438,3.865 1.229,0.385 10 false kPa(abs) [psi(abs)] 5.542,3.333 6.208,3.5 0.667,0.167 10 false Pressure 5.115,2.917 6.198,3.083 1.083,0.167 10 false Malfunction Area 5.115,1.031 6.198,1.198 1.083,0.167 10 false Malfunction Area 3.833,2.333 4.75,2.5 0.917,0.167 10 false Usable Range 1,4 1.417,4.167 0.417,0.167 10 false HINT: 1,4.333 5.208,4.594 4.208,0.26 10 false Standard atmospheric pressure is 101.3 kPa(abs) [14.69 psi(abs)]

1.

DTC P045011: Canister pressure sensor voltage low

If the canister pressure sensor voltage output (pressure) is less than 0.45 V: 42.11 kPa(abs) [6.11 psi(abs)], the ECM interprets this as an open or short circuit in the canister pressure sensor or its circuit, and stops the EVAP system monitor. The ECM will illuminate the MIL and store this DTC (1 trip detection logic).

2.

DTC P045015: Canister pressure sensor voltage high

If the canister pressure sensor voltage output (pressure) is higher than 4.9 V: 123.761 kPa(abs) [17.95 psi(abs)], the ECM interprets this as an open or short circuit in the canister pressure sensor or its circuit, and stops the EVAP system monitor. The ECM will illuminate the MIL and store this DTC (1 trip detection logic).

3.

DTC P04502F: Canister pressure sensor abnormal voltage fluctuation

If the canister pressure sensor voltage output fluctuates rapidly for 10 seconds, the ECM stops the EVAP system monitor. The ECM interprets this as the canister pressure sensor voltage fluctuating, and stops the EVAP system monitor. The ECM will illuminate the MIL and store this DTC (2 trip detection logic).


CONFIRMATION DRIVING PATTERN

NOTICE:
·

The Evaporative System Check (Automatic Mode) consists of 6 steps performed automatically by the GTS. It takes a maximum of approximately 24 minutes.

·

Do not perform the Evaporative System Check when the fuel tank is higher than 85% full because the cut-off valve may be closed, making the fuel tank leak check unavailable.

·

Do not run 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).



HINT:
·

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>DTC CHECK / CLEAR

·

When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>DTC CHECK / CLEAR



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 [A].

7.

Turn the GTS on.

8.

Enter the following menus: Powertrain / Engine / Data List / Intake Air Temperature.

9.

Check that the intake air temperature is between 4.4 and 50°C (40 and 122°F) [B].

10.

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

11.

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

12.

Input the DTC: P045011, P045015 or P04502F.

13.

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.

·

[A] to [C]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

·

When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.




WIRING DIAGRAM

A508860E03
5.958,0.479 6.875,0.677 0.917,0.198 10 false PRG 5.958,1.542 6.875,1.74 0.917,0.198 10 false VPMP 5.958,2.25 6.875,2.448 0.917,0.198 10 false MPMP 5.958,3.063 6.875,3.26 0.917,0.198 10 false VCPP 5.948,3.479 6.865,3.677 0.917,0.198 10 false PPMP 5.969,3.906 6.885,4.104 0.917,0.198 10 false EPPM 2.958,3.031 3.51,3.885 0.552,0.854 10 false Canister Pressure Sensor 2.823,4.354 3.74,4.552 0.917,0.198 10 false L47 3.156,4.354 4.833,4.552 1.677,0.198 10 false Canister Pump Module 2.656,0.74 3.573,0.938 0.917,0.198 10 false C60 2.969,0.729 3.885,0.927 0.917,0.198 10 false Purge VSV 2.521,0.375 2.917,0.573 0.396,0.198 10 false 1 3.76,0.375 4.156,0.573 0.396,0.198 10 false 2 5.563,0.5 5.958,0.698 0.396,0.198 10 false C115 5.646,1.354 6.042,1.552 0.396,0.198 10 false 27 5.563,1.552 5.958,1.75 0.396,0.198 10 false A109 5.635,2.073 6.031,2.271 0.396,0.198 10 false 28 5.646,2.875 6.042,3.073 0.396,0.198 10 false 72 5.635,3.302 6.031,3.5 0.396,0.198 10 false 73 5.646,3.708 6.042,3.906 0.396,0.198 10 false 71 4.708,2.156 5.104,2.354 0.396,0.198 10 false 3 4.719,2.938 5.115,3.135 0.396,0.198 10 false 6 4.719,3.385 5.115,3.583 0.396,0.198 10 false 7 4.708,3.781 5.104,3.979 0.396,0.198 10 false 8 2.531,1.448 2.927,1.646 0.396,0.198 10 false 5 2.542,2.146 2.938,2.344 0.396,0.198 10 false 4 2.708,1.438 3.625,1.635 0.917,0.198 10 false VLVB 2.719,2.135 3.635,2.333 0.917,0.198 10 false MGND 4.229,1.427 5.146,1.625 0.917,0.198 10 false VGND 4.229,2.156 5.146,2.354 0.917,0.198 10 false MTRB 4.302,2.958 5.219,3.156 0.917,0.198 10 false VCC 4.24,3.375 5.156,3.573 0.917,0.198 10 false VOUT 4.219,3.781 5.135,3.979 0.917,0.198 10 false SGND 4.01,6.177 4.927,6.375 0.917,0.198 10 false EFI NO. 2 2.281,6.75 3.479,7.021 1.198,0.271 10 false EFI-MAIN NO. 1 2.302,5.906 2.698,6.104 0.396,0.198 10 false 3 2.292,6.25 2.688,6.448 0.396,0.198 10 false 1 3.063,5.906 3.458,6.104 0.396,0.198 10 false 5 3.063,6.25 3.458,6.448 0.396,0.198 10 false 2 0.573,6.188 1.635,6.427 1.063,0.24 10 false EFI-MAIN NO. 1 0.615,7.948 1.531,8.146 0.917,0.198 10 false Battery 5.948,7.333 6.865,7.531 0.917,0.198 10 false MREL 6.49,7.427 6.885,7.625 0.396,0.198 10 false IC 6.302,8.115 6.698,8.313 0.396,0.198 10 false ECM 5.635,7.26 6.031,7.458 0.396,0.198 10 false 26 4.719,1.438 5.115,1.635 0.396,0.198 10 false 1 5.563,2.271 5.958,2.469 0.396,0.198 10 false A109 5.552,3.073 5.948,3.271 0.396,0.198 10 false A109 5.552,3.479 5.948,3.677 0.396,0.198 10 false A109 5.573,3.885 5.969,4.083 0.396,0.198 10 false A109 5.552,7.438 5.948,7.635 0.396,0.198 10 false A109 5.615,0.323 6.01,0.521 0.396,0.198 10 false 102 0.427,6.906 1.5,7.104 1.073,0.198 10 false FL MAIN

CAUTION / NOTICE / HINT

NOTICE:
·

When a vehicle is brought into the workshop, leave it as it is. Do not change the vehicle condition. For example, do not tighten the fuel tank cap.

·

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

·

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



PROCEDURE

1.CONFIRM DTC AND EVAP PRESSURE
a.

Read the DTCs.

Powertrain > Engine > Trouble Codes
50001 372

b.

Read the EVAP (Evaporative Emission) pressure displayed on the GTS.

Powertrain > Engine > Data List
Tester Display
Vapor Pressure Pump
50003 372 160
Result:
Display (DTC Output) Test Result Suspected Trouble Area Proceed to
P045011 Less than 42.11 kPa(abs) [6.11 psi(abs)]
·

Wire harness or connector (canister pressure sensor - ECM)

·

Canister pressure sensor

·

Short in ECM circuit


A
P045015 Higher than 123.761 kPa(abs) [17.95 psi(abs)]
·

Wire harness or connector (canister pressure sensor - ECM)

·

Canister pressure sensor

·

Open in ECM circuit


B
P04502F - Canister pressure sensor C




A

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

B

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

C

GO TO EVAP SYSTEM

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>EVAP System


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

Disconnect the ECM connector.


b.

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

Result:
Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to

Click Location & Routing(A109)Location & Routing

Click Connector(A109)Engine Compartment>Engine Room Main Wire / Transmission Wire>ECM

A109-73 (PPMP) - Body ground Always Below 10 Ω
·

Wire harness or connector (canister pressure sensor - ECM)

·

Short in canister pressure sensor circuit


A
10 kΩ or higher
·

Wire harness or connector (canister pressure sensor - ECM)

·

Short in ECM circuit


B




A

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

B

4.REPLACE ECM
3.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.

Result:
Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to

Click Location & Routing(A109)Location & Routing

Click Connector(A109)Engine Compartment>Engine Room Main Wire / Transmission Wire>ECM

A109-73 (PPMP) - Body ground Always 10 kΩ or higher Short in canister pressure sensor circuit A
Below 10 Ω Short in wire harness or connector (canister pressure sensor - ECM) B




A

6.REPLACE CANISTER PUMP MODULE (NO. 2 CHARCOAL CANISTER SUB-ASSEMBLY)

B

7.REPAIR OR REPLACE HARNESS OR CONNECTOR (CANISTER PUMP MODULE - ECM)
5.CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)
A501355C04
0.354,3.104 0.76,3.448 0.406,0.344 1.052,4.042 1.51,3.552 true 1.958,4.094 1.76,3.531 true 2.615,3.958 1.927,3.542 true 0.125,2.198 0.438,2.396 0.313,0.198 10 false *a 0.438,3.177 0.896,3.375 0.458,0.198 10 false L47 0.865,4.073 1.25,4.344 0.385,0.271 10 false VCC 1.813,4.135 2.427,4.333 0.615,0.198 10 false VOUT 2.521,3.979 3.052,4.271 0.531,0.292 10 false SGND
*a Front view of wire harness connector
(to Canister Pump Module)


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

Click Location & Routing(L47)Location & Routing

Click Connector(L47)Body>No. 2 Floor Wire>Leak Detection Pump Sub-Assembly

L47-8 (SGND) - Body ground Always 100 Ω or less



c.

Turn the ignition switch to ON.


d.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition

Click Location & Routing(L47)Location & Routing

Click Connector(L47)Body>No. 2 Floor Wire>Leak Detection Pump Sub-Assembly

L47-6 (VCC) - Body ground Ignition switch ON 4.5 to 5.5 V
L47-7 (VOUT) - Body ground Ignition switch ON 4.5 to 5.5 V


Result:
Test Result Suspected Trouble Area Proceed to
Voltage and resistance within standard ranges Open in canister pressure sensor circuit A
Voltage and/or resistance outside standard ranges Open in wire harness or connector (canister pressure sensor - ECM) B




A

6.REPLACE CANISTER PUMP MODULE (NO. 2 CHARCOAL CANISTER SUB-ASSEMBLY)

B

7.REPAIR OR REPLACE HARNESS OR CONNECTOR (CANISTER PUMP MODULE - ECM)
6.REPLACE CANISTER PUMP MODULE (NO. 2 CHARCOAL CANISTER SUB-ASSEMBLY)

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (EMISSION CONTROL)>CANISTER>REMOVAL

NOTICE:
·

When replacing the canister pump module, check the canister pump module interior, canister interior and related pipes for water, fuel and other liquids. If liquids are present, check for disconnections and/or cracks in the following: 1) the pipe from the air inlet port to the canister pump module; 2) the canister filter; and 3) the fuel tank vent hose. If liquids are present in the canister interior, replace the canister and canister pump module together.

·

Check for filter blockage in the canister. If the charcoal filter inside the canister is clogged, replace the canister and canister pump module together.

·

Check for filter blockage in the canister filter. If the canister filter has blockages, replace the canister filter.



A501356C01
3.948,3.729 3.802,4.073 3.802,4.073 3.635,4.073 true 6.844,3.625 6.979,3.625 6.979,3.625 6.75,4.219 false 2.896,3.646 2.969,3.375 2.969,3.375 3.094,3.375 false 4.792,0.885 5.01,0.406 5.01,0.406 5.271,0.406 false 2.094,3.167 2.406,2.875 2.406,2.875 2.583,2.875 false 0.833,3.208 0.677,3.688 0.677,3.688 0.479,3.688 false 6.073,4.813 6.25,4.813 6.25,4.813 6.458,4.396 false 2.042,2.917 2.563,2.323 2.563,2.323 2.771,2.323 false 6.115,5.25 6.313,5.25 6.313,5.25 6.646,4.51 false 2.906,0.219 3.208,0.521 0.302,0.302 10 false *a 1.115,3.74 1.427,3.938 0.313,0.198 10 false *a 3.135,3.292 3.458,3.552 0.323,0.26 10 false *1 3.458,4 3.771,4.198 0.313,0.198 10 false *2 6.698,3.563 6.969,3.802 0.271,0.24 10 false *3 5.333,0.333 5.635,0.583 0.302,0.25 10 false *4 2.625,2.781 2.938,2.979 0.313,0.198 10 false *5 0.323,3.625 0.635,3.823 0.313,0.198 10 false *6 5.906,4.729 6.219,4.927 0.313,0.198 10 false *7 2.792,2.24 3.104,2.51 0.313,0.271 10 false *8 5.927,5.198 6.229,5.49 0.302,0.292 10 false *9
*1 Fuel Tank Vent Hose *2 Vent Hose
*3 Air Inlet Port *4 Fuel Tank
*5 Canister Pump Module *6 Canister
*7 Canister Filter *8 No. 2 Charcoal Canister Filter
*9 Fuel Tank Cap - -
*a Inspection Area
(check for disconnection and/or cracks) 		- -


Result:
Proceed to
NEXT



NEXT

8.CLEAR DTC
7.REPAIR OR REPLACE HARNESS OR CONNECTOR (CANISTER PUMP MODULE - ECM)
a.

Repair or replace the harness or connector (canister pump module - ECM).


Result:
Proceed to
NEXT



NEXT

8.CLEAR DTC
8.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

9.CHECK WHETHER DTC OUTPUT RECURS (P045011 OR P045015)
9.CHECK WHETHER DTC OUTPUT RECURS (P045011 OR P045015)
a.

Perform the Evaporative System Check using the GTS, referring to Confirmation Driving Pattern.


b.

Perform the All Readiness.

Powertrain > Engine > Utility
Tester Display
All Readiness
50005 372 20

c.

Input the DTC: P045011 or P045015.


d.

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




Result:
Proceed to
NEXT



NEXT

END