RM35X0E _51 Engine / Hybrid System _078720 7GR-FKS ENGINE CONTROL _0381907 SFI SYSTEM C

7GR-FKS ENGINE CONTROL  SFI SYSTEM  P219519  A/F (O2) Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1 Circuit Current Above Threshold  P219524  A/F (O2) Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1 Signal Stuck High  P219618  A/F (O2) Sensor Signal Biased/Stuck Rich Bank 1 Sensor 1 Circuit Current Below Threshold  P219623  A/F (O2) Sensor Signal Biased/Stuck Rich Bank 1 Sensor 1 Signal Stuck Low  P219719  A/F (O2) Sensor Signal Biased/Stuck Lean Bank 2 Sensor 1 Circuit Current Above Threshold  P219724  A/F (O2) Sensor Signal Biased/Stuck Lean Bank 2 Sensor 1 Signal Stuck High  P219818  A/F (O2) Sensor Signal Biased/Stuck Rich Bank 2 Sensor 1 Circuit Current Below Threshold  P219823  A/F (O2) Sensor Signal Biased/Stuck Rich Bank 2 Sensor 1 Signal Stuck Low  


DESCRIPTION

HINT:

Although the DTC titles say oxygen sensor, these DTCs relate to the air fuel ratio sensor.


The air fuel ratio sensor generates voltage* that corresponds to the actual air fuel ratio. This sensor voltage is used to provide the ECM with feedback so that it can control the air fuel ratio. The ECM determines the deviation from the stoichiometric air fuel ratio level, and regulates the fuel injection duration. If the air fuel ratio sensor malfunctions, the ECM is unable to control the air fuel ratio accurately.

The air fuel ratio sensor is a planar type and integrated with the heater, which heats the solid electrolyte (zirconia element). This heater is controlled by the ECM. When the intake air volume is low (the exhaust gas temperature is low), a current flows into the heater to heat the sensor, in order to facilitate accurate oxygen concentration detection. In addition, the sensor and heater portions are a narrow type. The heat generated by the heater is conducted to the solid electrolyte through the alumina, therefore sensor activation is accelerated.

In order to obtain a high purification rate of the carbon monoxide (CO), hydrocarbon (HC) and nitrogen oxide (NOx) components in the exhaust gas, a three-way catalytic converter is used. For the most efficient use of the three-way catalytic converter, the air fuel ratio must be precisely controlled so that it is always close to the stoichiometric level.

*: Value changes inside the ECM. Since the air fuel ratio sensor is a current output element, the current is converted into a voltage inside the ECM. Any measurements taken at the air fuel ratio sensor or ECM connectors will show a constant voltage.

A306366E01
1.49,2.167 1,1.75 1,1.75 0.833,1.75 false 1.656,2.094 1.823,1.844 1.823,1.844 1.906,1.844 false 2.938,1.177 3.104,0.396 3.104,0.396 3.188,0.396 false 3.083,1.198 3.25,0.917 3.25,0.917 3.333,0.917 false 3.156,1.198 3.333,1.167 3.333,1.167 3.417,1.167 false 2.875,1.667 3.406,1.5 3.406,1.5 2.99,1.667 false 3.042,1.75 3.417,2.083 3.417,2.083 3.5,2.083 false 0.281,1.656 1.354,1.854 1.073,0.198 10 false Element 0.135,2.385 1.208,2.583 1.073,0.198 10 false Exhaust Gas 1.083,2.49 1.417,2.667 0.333,0.177 10 false A 1.802,2.49 2.135,2.667 0.333,0.177 10 false A 1.948,1.76 2.333,1.917 0.385,0.156 10 false Cover 3.26,0.219 4.417,0.583 1.156,0.365 10 false Solid Electrolyte (Zirconia Element) 3.385,0.833 4.052,0.99 0.667,0.156 10 false Alumina 3.458,1.083 4.125,1.24 0.667,0.156 10 false Heater 3.448,1.417 4.698,1.667 1.25,0.25 10 false Platinum Electrode 3.542,2 4.792,2.25 1.25,0.25 10 false Atmospheric Air 2.531,2.333 3.865,2.5 1.333,0.167 10 false A-A Cross Section 5.323,0.167 6.823,0.5 1.5,0.333 10 false ECM Monitored Air Fuel Ratio Sensor Voltage 5.563,2.25 6.896,2.417 1.333,0.167 10 false Air Fuel Ratio

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P219519 A/F (O2) Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1 Circuit Current Above Threshold While the fuel-cut operation is performed (during vehicle deceleration), the air fuel ratio sensor current is 2.2 mA or higher for 3 seconds or more (2 trip detection logic).
·

Open or short in air fuel ratio sensor (Bank 1 sensor 1) circuit

·

Air fuel ratio sensor (Bank 1 sensor 1)

·

Intake system

·

Gas leak from exhaust system

·

Fuel pressure (for low pressure side)

·

Fuel pressure (for high pressure side)

·

Fuel injector assembly (for port injection)

·

Fuel injector assembly (for direct injection)

·

Fuel system

·

ECM


Comes on DTC stored SAE Code: P2195
P219524 A/F (O2) Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1 Signal Stuck High Both of the following conditions are met for 5 seconds or more (2 trip detection logic):
1.

Air fuel ratio sensor voltage is higher than 3.8 V.

2.

Heated oxygen sensor voltage is 0.21 V or higher.


·

Open or short in air fuel ratio sensor (Bank 1 sensor 1) circuit

·

Air fuel ratio sensor (Bank 1 sensor 1)

·

Intake system

·

Gas leak from exhaust system

·

Fuel pressure (for low pressure side)

·

Fuel pressure (for high pressure side)

·

Fuel injector assembly (for port injection)

·

Fuel injector assembly (for direct injection)

·

Fuel system

·

ECM


Comes on DTC stored SAE Code: P2195
P219618 A/F (O2) Sensor Signal Biased/Stuck Rich Bank 1 Sensor 1 Circuit Current Below Threshold While the fuel-cut operation is performed (during vehicle deceleration), the air fuel ratio sensor current is less than 0.47 mA for 3 seconds or more (2 trip detection logic).
·

Open or short in air fuel ratio sensor (Bank 1 sensor 1) circuit

·

Air fuel ratio sensor (Bank 1 sensor 1)

·

Intake system

·

Gas leak from exhaust system

·

Fuel pressure (for low pressure side)

·

Fuel pressure (for high pressure side)

·

Fuel injector assembly (for port injection)

·

Fuel injector assembly (for direct injection)

·

Fuel system

·

ECM


Comes on DTC stored SAE Code: P2196
P219623 A/F (O2) Sensor Signal Biased/Stuck Rich Bank 1 Sensor 1 Signal Stuck Low Both of the following conditions are met for 5 seconds or more (2 trip detection logic):
1.

Air fuel ratio sensor voltage is less than 2.8 V.

2.

Heated oxygen sensor voltage is less than 0.7 V.


·

Open or short in air fuel ratio sensor (Bank 1 sensor 1) circuit

·

Air fuel ratio sensor (Bank 1 sensor 1)

·

Intake system

·

Gas leak from exhaust system

·

Fuel pressure (for low pressure side)

·

Fuel pressure (for high pressure side)

·

Fuel injector assembly (for port injection)

·

Fuel injector assembly (for direct injection)

·

Fuel system

·

ECM


Comes on DTC stored SAE Code: P2196
P219719 A/F (O2) Sensor Signal Biased/Stuck Lean Bank 2 Sensor 1 Circuit Current Above Threshold While the fuel-cut operation is performed (during vehicle deceleration), the air fuel ratio sensor current is 2.2 mA or higher for 3 seconds or more (2 trip detection logic).
·

Open or short in air fuel ratio sensor (Bank 2 sensor 1) circuit

·

Air fuel ratio sensor (Bank 2 sensor 1)

·

Intake system

·

Gas leak from exhaust system

·

Fuel pressure (for low pressure side)

·

Fuel pressure (for high pressure side)

·

Fuel injector assembly (for port injection)

·

Fuel injector assembly (for direct injection)

·

Fuel system

·

ECM


Comes on DTC stored SAE Code: P2197
P219724 A/F (O2) Sensor Signal Biased/Stuck Lean Bank 2 Sensor 1 Signal Stuck High Both of the following conditions are met for 5 seconds or more (2 trip detection logic):
1.

Air fuel ratio sensor voltage is higher than 3.8 V.

2.

Heated oxygen sensor voltage is 0.21 V or higher.


·

Open or short in air fuel ratio sensor (Bank 2 sensor 1) circuit

·

Air fuel ratio sensor (Bank 2 sensor 1)

·

Intake system

·

Gas leak from exhaust system

·

Fuel pressure (for low pressure side)

·

Fuel pressure (for high pressure side)

·

Fuel injector assembly (for port injection)

·

Fuel injector assembly (for direct injection)

·

Fuel system

·

ECM


Comes on DTC stored SAE Code: P2197
P219818 A/F (O2) Sensor Signal Biased/Stuck Rich Bank 2 Sensor 1 Circuit Current Below Threshold While the fuel-cut operation is performed (during vehicle deceleration), the air fuel ratio sensor current is less than 0.47 mA for 3 seconds or more (2 trip detection logic).
·

Open or short in air fuel ratio sensor (Bank 2 sensor 1) circuit

·

Air fuel ratio sensor (Bank 2 sensor 1)

·

Intake system

·

Gas leak from exhaust system

·

Fuel pressure (for low pressure side)

·

Fuel pressure (for high pressure side)

·

Fuel injector assembly (for port injection)

·

Fuel injector assembly (for direct injection)

·

Fuel system

·

ECM


Comes on DTC stored SAE Code: P2198
P219823 A/F (O2) Sensor Signal Biased/Stuck Rich Bank 2 Sensor 1 Signal Stuck Low Both of the following conditions are met for 5 seconds or more (2 trip detection logic):
1.

Air fuel ratio sensor voltage is less than 2.8 V.

2.

Heated oxygen sensor voltage is less than 0.7 V.


·

Open or short in air fuel ratio sensor (Bank 2 sensor 1) circuit

·

Air fuel ratio sensor (Bank 2 sensor 1)

·

Intake system

·

Gas leak from exhaust system

·

Fuel pressure (for low pressure side)

·

Fuel pressure (for high pressure side)

·

Fuel injector assembly (for port injection)

·

Fuel injector assembly (for direct injection)

·

Fuel system

·

ECM


Comes on DTC stored SAE Code: P2198

HINT:
·

DTCs P219519, P219524, P219618 and P219623 indicate malfunctions related to the bank 1 air fuel ratio sensor circuit.

·

DTCs P219719, P219724, P219818 and P219823 indicate malfunctions related to the bank 2 air fuel ratio sensor circuit.

·

When any of these DTCs are stored, check the air fuel ratio sensor voltage output by entering the following menus on the GTS: Powertrain / Engine / Data List / A/F (O2) Sensor Voltage B1S1 or A/F (O2) Sensor Voltage B2S1.

·

Short-term fuel trim values can also be read using the GTS.

·

The ECM regulates the voltages at the A1A+, A2A+, A1A- and A2A- terminals of the ECM to a constant level. Therefore, the air fuel ratio sensor output voltage cannot be confirmed without using the GTS.

·

If an air fuel ratio sensor malfunction is detected, the ECM will store a DTC.



MONITOR DESCRIPTION

Sensor Voltage Detection Monitor:

Under air fuel ratio feedback control, If the air fuel ratio sensor output voltage is less than 2.8 V (very rich condition) for 5 seconds despite the heated oxygen sensor output voltage being less than 0.7 V, the ECM stores DTC P219623 or P219823. Alternatively, if the air fuel ratio sensor output voltage is higher than 3.8 V (very lean condition) for 5 seconds despite the heated oxygen sensor output voltage being 0.21 V or higher, DTC P219524 or P219724 is stored.


Sensor Current Detection Monitor:

A rich air fuel mixture causes a low air fuel ratio sensor current, and a lean air fuel mixture causes a high air fuel ratio sensor current. Therefore, the sensor output becomes low during acceleration, and it becomes high during deceleration with the throttle valve fully closed. The ECM monitors the air fuel ratio sensor current during fuel-cut and detects any abnormal current values.

If the air fuel ratio sensor output is 2.2 mA or higher for 3 seconds or more of cumulative time, the ECM interprets this as a malfunction in the air fuel ratio sensor and stores DTC P219519 or 219719 (stuck on high side). If the air fuel ratio sensor output is less than 0.47 mA for 3 seconds or more of cumulative time, the ECM stores DTC P219618 or P219818 (stuck on low side).


A284399E03
2.385,2.281 2.188,1.594 2.188,1.594 2.323,1.594 false 4.406,2.281 4.26,1.667 4.26,1.667 4.396,1.667 false 5.771,2.281 5.677,1.656 5.677,1.656 5.813,1.656 false 0.177,0.115 2.76,0.323 2.583,0.208 10 Air Fuel Ratio Sensor Current Monitor 2.833,0.323 6.094,0.51 3.26,0.188 10 Cumulative Time "t" = t1 + t2 = 3 seconds or more 1.469,1.208 1.854,1.396 0.385,0.188 10 OFF 1.49,0.917 1.875,1.104 0.385,0.188 10 ON 0.646,1.073 1.24,1.281 0.594,0.208 10 Fuel-cut 0.448,2.833 1.802,3.104 1.354,0.271 10 High Side Threshold 2.375,1.51 3.729,1.781 1.354,0.271 10 Delay (3 seconds) 0.49,3.49 1.844,3.76 1.354,0.271 10 Low Side Threshold 0.479,2.219 1.833,2.49 1.354,0.271 10 Sensor Current (mA) 4.448,1.563 5.802,1.833 1.354,0.271 10 Delay (3 seconds) 5.865,1.563 7.073,1.823 1.208,0.26 10 Delay (3 seconds) 6.01,3.813 6.292,4.031 0.281,0.219 10 t2 4.708,3.813 4.99,4.031 0.281,0.219 10 t1 2.385,3.635 3.74,3.906 1.354,0.271 10 3 seconds or more 4.708,4.24 6.365,4.427 1.656,0.188 10 Abnormal Sensor Output 2.417,4.25 4.073,4.438 1.656,0.188 10 Normal Sensor Output 6.667,4.26 7.031,4.448 0.365,0.188 10 Time

MONITOR STRATEGY

Required Sensors/Components (Main) Air fuel ratio sensor
Required Sensors/Components (Related) Heated oxygen sensor
Frequency of Operation Continuous: Sensor voltage detection monitor
Once per driving cycle: Sensor current detection monitor
Duration 3 seconds: Sensor current detection monitor
5 seconds: Sensor voltage detection monitor

TYPICAL ENABLING CONDITIONS

Sensor Voltage Detection Monitor
Time after engine start 30 seconds or more
Battery voltage 11 V or higher
Air fuel ratio sensor status Activated
Fuel system status Closed-loop

Sensor Current Detection Monitor
Battery voltage 11 V or higher
Engine coolant temperature 75°C (167°F) or higher
Atmospheric pressure 76 kPa(abs) [11 psi(abs)] or higher
Air fuel ratio sensor status Activated
Continuous time of fuel-cut 3 seconds or more, and less than 10 seconds

TYPICAL MALFUNCTION THRESHOLDS

P219524 and P219724: Sensor Voltage Detection Monitor (Lean Side Malfunction)
Heated oxygen sensor voltage 0.21 V or higher
Air fuel ratio sensor voltage Higher than 3.8 V

P219623 and P219823: Sensor Voltage Detection Monitor (Rich Side Malfunction)
Heated oxygen sensor voltage Less than 0.7 V
Air fuel ratio sensor voltage Less than 2.8 V

P219519 and P219719: Sensor Current Detection Monitor (High Side Malfunction)
Duration of following condition 3 seconds or more
Air fuel ratio sensor current 2.2 mA or higher

P219618 and P219818: Sensor Current Detection Monitor (Low Side Malfunction)
Duration of following condition 3 seconds or more
Air fuel ratio sensor current Less than 0.47 mA

CONFIRMATION DRIVING PATTERN

A283818E28
2.448,1.51 3.052,0.698 3.052,0.698 2.833,0.698 true 5.448,1.667 5.75,0.583 true 5.021,1.521 4.5,1.521 false 6.333,2.25 5.375,2.25 false 4.052,3.531 3.823,3.354 true 4.927,1.677 4.5,0.583 true 5.542,3.167 5.708,3.167 5.708,3.167 5.5,2.74 true 4.708,2.958 4.875,2.958 4.875,2.958 4.99,2.729 true 0.073,0.24 3.25,0.5 3.177,0.26 10 false Engine Coolant Temperature: 75°C or higher 0.156,0.865 1.104,1.094 0.948,0.229 10 false Vehicle Speed 1.156,0.604 2.792,1.021 1.635,0.417 10 false Between 60 and 100 km/h 0.719,2.281 1.167,2.583 0.448,0.302 10 false Idling 1.25,2.865 2.083,3.083 0.833,0.219 10 false Warming up 2.49,2.875 3.219,3.396 0.729,0.521 10 false 10 minutes or more 3.427,1.458 4.479,1.854 1.052,0.396 10 false 60 km/h or more 3.396,0.448 4.542,0.865 1.146,0.417 10 false Accelerator Pedal Depressed 4.667,0.708 5.667,0.917 1,0.208 10 false At least 3 times 5.823,0.438 7.052,0.958 1.229,0.521 10 false Accelerator Pedal Released (Fuel-cut) 6.417,2.146 6.979,2.51 0.563,0.365 10 false 10 km/h 6.25,2.552 6.667,2.802 0.417,0.25 10 false Time 4.375,3.073 5.604,3.344 1.229,0.271 10 false 5 seconds or more 4.094,3.469 5.417,3.667 1.323,0.198 10 false Refer to figure below 3.448,2.865 4.729,3.229 1.281,0.365 10 false 10 seconds or more 1.552,2.167 1.813,2.385 0.26,0.219 10 false [A] 2.708,1.302 2.969,1.521 0.26,0.219 10 false [B] 3.844,2.167 4.083,2.417 0.24,0.25 10 false [C] 4.99,1.302 5.25,1.521 0.26,0.219 10 false [D] 5.5,1.594 5.76,1.813 0.26,0.219 10 false [E] 6.083,3.115 6.344,3.333 0.26,0.219 10 false [F]

A268862E15
3.646,2.625 3.958,0.885 false 3.375,2.625 2.167,0.719 2.167,0.719 2.292,0.719 false 2.271,1.385 2.979,1.385 false 0.104,0.042 3.042,0.24 2.938,0.198 10 false Driving Pattern Detail for [C] through [E]: 0.5,0.594 1.729,0.906 1.229,0.313 10 false Vehicle Speed 2.823,0.156 7,0.406 4.177,0.25 10 false Cumulative Detection Period "t" = t1 + t2 + t3 = 3 seconds or more 1.094,2.365 1.51,2.563 0.417,0.198 10 false Idling 2.188,2.948 2.698,3.229 0.51,0.281 10 false Idling 3.177,3.115 3.833,3.479 0.656,0.365 10 false 5 seconds or more 2.188,2.25 2.448,2.521 0.26,0.271 10 false [C] 3.031,1.146 3.313,1.469 0.281,0.323 10 false [D] 3.469,1.542 3.729,1.813 0.26,0.271 10 false [E] 2.375,0.635 3.563,0.833 1.188,0.198 10 false Delay (3 seconds) 4.01,0.75 5.448,0.948 1.438,0.198 10 false Detection Period t1 4.813,2.375 4.99,2.625 0.177,0.25 10 false t2 6.042,2.396 6.302,2.635 0.26,0.24 10 false t3 6.49,2.781 6.875,2.979 0.385,0.198 10 false Time 4.375,3.115 5.031,3.479 0.656,0.365 10 false 5 seconds or more 5.604,3.115 6.26,3.479 0.656,0.365 10 false 5 seconds or more 1.688,1.292 2.208,1.76 0.521,0.469 10 false 60 km/h or more

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.

Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [A].

9.

Drive the vehicle at a speed between 60 and 100 km/h (37 and 62 mph) for at least 10 minutes [B].

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.


10.

With the shift lever in S or 2nd gear [C], accelerate the vehicle to 60 km/h (37 mph) or more by depressing the accelerator pedal for at least 10 seconds [D].

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.


11.

Soon after performing step [D] above, release the accelerator pedal for at least 5 seconds without depressing the brake pedal in order to execute fuel-cut control [E].

12.

Allow the vehicle to decelerate until the vehicle speed decreases to less than 10 km/h (6 mph).

13.

Repeat steps [C] through [E] above at least 3 times in one driving cycle.

14.

Enter the following menus: Powertrain / Engine / Trouble Codes [F].

15.

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.



16.

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

17.

Input the DTC: P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823.

18.

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 has a malfunction.

·

If the judgment result is INCOMPLETE, perform steps [B] through [F] again.




WIRING DIAGRAM

A439415E03
0.885,5.583 1.958,5.781 1.073,0.198 10 false Battery 0.885,1.677 1.615,1.927 0.729,0.25 10 false EFI NO. 2 0.698,3.375 1.813,3.563 1.115,0.188 10 false EFI-MAIN 0.844,2.719 1.563,2.938 0.719,0.219 10 false EFI MAIN 1.042,1.271 1.479,1.5 0.438,0.229 10 false A/F 0.375,1.74 0.823,1.958 0.448,0.219 10 false A/F 0.833,4.063 1.948,4.25 1.115,0.188 10 false 1 1.958,0.438 2.156,0.604 0.198,0.167 10 false 3 1.969,2.885 2.167,3.063 0.198,0.177 10 false 4 1.958,2.26 2.167,2.448 0.208,0.188 10 false 8 1,6.25 2.073,6.448 1.073,0.198 10 false *: Shielded 6.26,6.406 6.813,6.656 0.552,0.25 10 false ECM 5.896,5.781 6.448,6.031 0.552,0.25 10 false MREL 5.875,4.917 6.427,5.167 0.552,0.25 10 false A2A- 5.875,3.75 6.427,4 0.552,0.25 10 false A2A+ 5.875,2.969 6.427,3.219 0.552,0.25 10 false HA2A 5.885,2.344 6.438,2.594 0.552,0.25 10 false A1A- 5.875,1.281 6.427,1.531 0.552,0.25 10 false A1A+ 5.875,0.5 6.427,0.75 0.552,0.25 10 false HA1A 3.375,1.719 3.927,1.969 0.552,0.25 10 false E11 3.375,1.885 4.76,2.375 1.385,0.49 10 false Air Fuel Ratio Sensor (Bank 1 Sensor 1) 3.417,4.385 4.792,4.833 1.375,0.448 10 false Air Fuel Ratio Sensor (Bank 2 Sensor 1) 3.417,4.208 3.969,4.458 0.552,0.25 10 false E12 5.167,2.865 5.719,3.115 0.552,0.25 10 false * 5.167,5.438 5.719,5.688 0.552,0.25 10 false * 4.063,0.5 4.615,0.75 0.552,0.25 10 false HA1A 4.083,1.24 4.635,1.49 0.552,0.25 10 false A1A+ 4.031,2.979 4.583,3.229 0.552,0.25 10 false HA2A 4.042,3.708 4.594,3.958 0.552,0.25 10 false A2A+ 3.677,0.49 4.229,0.74 0.552,0.25 10 false +B 3.688,1.24 4.24,1.49 0.552,0.25 10 false A1A- 3.656,3.698 4.208,3.948 0.552,0.25 10 false A2A- 3.656,2.969 4.208,3.219 0.552,0.25 10 false +B 3.479,0.479 4.594,0.667 1.115,0.188 10 false 2 3.448,2.938 4.563,3.125 1.115,0.188 10 false 2 4.531,0.49 5.646,0.677 1.115,0.188 10 false 1 4.5,2.958 5.615,3.146 1.115,0.188 10 false 1 3.49,1.26 4.604,1.448 1.115,0.188 10 false 4 4.521,1.271 5.635,1.458 1.115,0.188 10 false 3 4.51,3.729 5.625,3.917 1.115,0.188 10 false 3 3.458,3.719 4.573,3.906 1.115,0.188 10 false 4 5.521,0.604 6.073,0.854 0.552,0.25 10 false E4 5.521,1.385 6.073,1.635 0.552,0.25 10 false E3 5.531,2.448 6.083,2.698 0.552,0.25 10 false E3 5.531,3.073 6.083,3.323 0.552,0.25 10 false E4 5.521,3.854 6.073,4.104 0.552,0.25 10 false E3 5.51,5.031 6.063,5.281 0.552,0.25 10 false E3 5.521,5.885 6.073,6.135 0.552,0.25 10 false A1 5.573,0.438 6.125,0.688 0.552,0.25 10 false 2 5.542,1.219 6.094,1.469 0.552,0.25 10 false 31 5.542,2.281 6.094,2.531 0.552,0.25 10 false 32 5.563,2.906 6.115,3.156 0.552,0.25 10 false 1 5.531,3.688 6.083,3.938 0.552,0.25 10 false 23 5.521,4.865 6.073,5.115 0.552,0.25 10 false 30 5.531,5.719 6.083,5.969 0.552,0.25 10 false 25 0.813,4.313 2.396,4.521 1.583,0.208 10 false No. 1 Integration Relay 0.719,4.906 1.438,5.125 0.719,0.219 10 false FL MAIN 0.573,4.094 1.688,4.281 1.115,0.188 10 false A 1.917,3.052 2.24,3.323 0.323,0.271 10 false 1E 1.906,2.427 2.229,2.698 0.323,0.271 10 false 1E 1.906,0.604 2.229,0.875 0.323,0.271 10 false 1E

CAUTION / NOTICE / HINT

NOTICE:

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


HINT:
·

A low air fuel ratio sensor voltage could be caused by a rich air fuel mixture. Check for conditions that would cause the engine to run rich.

·

A high air fuel ratio sensor voltage could be caused by a lean air fuel mixture. Check for conditions that would cause the engine to run lean.

·

Bank 1 refers to the bank that includes the No. 1 cylinder*.

*: The No. 1 cylinder is the cylinder which is farthest from the transmission.

·

Bank 2 refers to the bank that does not include the No. 1 cylinder.

·

Sensor 1 refers to the sensor closest to the engine assembly.

·

Sensor 2 refers to the sensor farthest away from the engine assembly.

·

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.



PROCEDURE

1.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

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


e.

Read the DTCs.

Powertrain > Engine > Trouble Codes
50001 372
Result:
Result Proceed to
DTC P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823 is output A
DTC P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823 and P013613, P013617, P01361C, P015613, P015617 or P01561C are output
DTC P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823 and other DTCs are output B


HINT:

If any DTCs relating to the air fuel ratio sensor (DTCs for the air fuel ratio sensor heater or air fuel ratio sensor admittance) are output, troubleshoot those DTCs first.




A

2.CONFIRM IF VEHICLE HAS RUN OUT OF FUEL IN PAST

B

GO TO DTC CHART

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>SFI SYSTEM>DIAGNOSTIC TROUBLE CODE CHART


2.CONFIRM IF VEHICLE HAS RUN OUT OF FUEL IN PAST
a.

Has the vehicle run out of fuel in the past?


Result:
Proceed to
YES
NO



YES

3.CLEAR DTC

NO

5.CLEAR DTC
3.CLEAR DTC
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Clear the DTC.

Powertrain > Engine > Clear DTCs
50002 372

e.

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


Result:
Proceed to
NEXT



NEXT

4.CHECK WHETHER DTC OUTPUT RECURS (DTC P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823)
4.CHECK WHETHER DTC OUTPUT RECURS (DTC P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823)
a.

Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.


b.

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

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

c.

Input the DTC: P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823.


d.

Check the DTC judgment result.

Result:
Result Proceed to
NORMAL
(DTCs are not output) 		A
ABNORMAL
(DTC P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823 is output) 		B




A

DTC CAUSED BY RUNNING OUT OF FUEL

B

5.CLEAR DTC
5.CLEAR DTC
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Clear the DTC.

Powertrain > Engine > Clear DTCs
50002 372

e.

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


Result:
Proceed to
NEXT



NEXT

6.READ VALUE USING GTS (TEST VALUE OF AIR FUEL RATIO SENSOR)
6.READ VALUE USING GTS (TEST VALUE OF AIR FUEL RATIO SENSOR)
a.

Enter the following menus: Powertrain / Engine / Data List / A/F (O2) Sensor Current B1S1 or A/F (O2) Sensor Current B2S1.

Powertrain > Engine > Data List
Tester Display
A/F (O2) Sensor Current B1S1
A/F (O2) Sensor Current B2S1
50003 372 230,432

b.

Check the test value of the air fuel ratio sensor output current during fuel-cut, referring to the Driving Pattern Detail for [C] through [E] in Confirmation Driving Pattern.

HINT:
·

To measure the air fuel ratio sensor current precisely, perform the fuel-cut operation as long as possible.

·

If it is difficult to measure the air fuel ratio sensor current, use the snapshot function of the GTS.




Result:
Test Value Proceed to
Within normal range
(0.47 mA or higher, and less than 2.2 mA) 		A
Outside normal range
(Less than 0.47 mA, or 2.2 mA or higher) 		B



A

7.PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION VOLUME FOR A/F SENSOR)

B

18.REPLACE AIR FUEL RATIO SENSOR
7.PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION VOLUME FOR A/F SENSOR)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.


e.

Warm up the air fuel ratio sensor at an engine speed of 2500 rpm for 90 seconds.


f.

Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor / Data List / Coolant Temperature, A/F (O2) Sensor Voltage B1S1 and O2 Sensor Voltage B1S2 or A/F (O2) Sensor Voltage B2S1 and O2 Sensor Voltage B2S2.

Powertrain > Engine > Active Test
Active Test Display
Control the Injection Volume for A/F Sensor
Data List Display
Coolant Temperature
A/F (O2) Sensor Voltage B1S1
A/F (O2) Sensor Voltage B2S1
O2 Sensor Voltage B1S2
O2 Sensor Voltage B2S2
50004 372 8 205,225,512,218,510

g.

Perform the Control the Injection Volume for A/F Sensor operation with the engine idling.


h.

Monitor the output voltages of the air fuel ratio and heated oxygen sensors (A/F (O2) Sensor Voltage B1S1 and O2 Sensor Voltage B1S2 or A/F (O2) Sensor Voltage B2S1 and O2 Sensor Voltage B2S2) displayed on the GTS.

HINT:
·

The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by 12.5% or increases the injection volume by 12.5%.

·

The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds.

·

If the sensor output voltage does not change (almost no reaction) while performing the Active Test, the sensor may be malfunctioning.



Standard:
GTS Display (Sensor) Injection Volume Status Voltage
A/F (O2) Sensor Voltage B1S1
A/F (O2) Sensor Voltage B2S1
(Air fuel ratio) 		12.5% Rich Below 3.1 V
-12.5% Lean Higher than 3.4 V
O2 Sensor Voltage B1S2
O2 Sensor Voltage B2S2
(Heated oxygen) 		12.5% Rich Higher than 0.55 V
-12.5% Lean Below 0.4 V


Result:
Status of A/F (O2) Sensor Voltage B1S1 or A/F (O2) Sensor Voltage B2S1 Status of O2 Sensor Voltage B1S2 or O2 Sensor Voltage B2S2 Air Fuel Ratio Condition and Air Fuel Ratio Sensor Condition Proceed to
Lean Lean Actual air fuel ratio lean A
Rich Rich Actual air fuel ratio rich
Lean Lean/Rich Air fuel ratio sensor malfunction B
Rich Lean/Rich Air fuel ratio sensor malfunction
Lean/Rich Lean/Rich Normal


Lean: During the Control the Injection Volume for A/F Sensor of the Active Test, the air fuel ratio sensor output voltages (A/F (O2) Sensor Voltage B1S1 and A/F (O2) Sensor Voltage B2S1) are consistently higher than 3.4 V, and the heated oxygen sensor output voltages (O2 Sensor Voltage B1S2 and O2 Sensor Voltage B2S2) are consistently below 0.4 V.

Rich: During the Control the Injection Volume for A/F Sensor of the Active Test, the A/F (O2) Sensor Voltage B1S1 and A/F (O2) Sensor Voltage B2S1 are consistently below 3.1 V, and the O2 Sensor Voltage B1S2 and O2 Sensor Voltage B2S2 are consistently higher than 0.55 V.

Lean/Rich: During Control the Injection Volume for A/F Sensor of the Active Test, the output voltage of the air fuel ratio sensor or heated oxygen sensor alternates correctly.


HINT:

Refer to "Data List / Active Test" [A/F (O2) Sensor Voltage B1S1, A/F (O2) Sensor Voltage B2S1, O2 Sensor Voltage B1S2 and O2 Sensor Voltage B2S2].

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>SFI SYSTEM>DATA LIST / ACTIVE TEST




A

8.CHECK INTAKE SYSTEM

B

18.REPLACE AIR FUEL RATIO SENSOR
8.CHECK INTAKE SYSTEM
a.

Check the intake system for vacuum leaks.

Click hereEngine / Hybrid System>7GR-FKS (INTAKE / EXHAUST)>INTAKE SYSTEM>ON-VEHICLE INSPECTION

OK:

No leaks from the intake system.


HINT:

Perform "Inspection After Repair" after repairing or replacing the intake system.

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION



Result:
Proceed to
OK
NG



OK

9.CHECK FOR EXHAUST GAS LEAK

NG

REPAIR OR REPLACE INTAKE SYSTEM

9.CHECK FOR EXHAUST GAS LEAK
a.

Check for exhaust gas leaks.

OK:

No gas leaks in exhaust system.


HINT:

Perform "Inspection After Repair" after repairing or replacing the exhaust system.

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION



Result:
Proceed to
OK
NG



OK

10.CHECK FUEL PRESSURE (FOR LOW PRESSURE SIDE)

NG

REPAIR OR REPLACE EXHAUST SYSTEM

10.CHECK FUEL PRESSURE (FOR LOW PRESSURE SIDE)
a.

Check the fuel pressure (for low pressure side).

Click hereEngine / Hybrid System>7GR-FKS (FUEL)>FUEL SYSTEM>ON-VEHICLE INSPECTION


Result:
Proceed to
OK
NG



OK

11.INSPECT FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION)

NG

17.CHECK FUEL LINE
11.INSPECT FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION)
a.

Inspect the fuel injector assembly (for port injection) (whether fuel volume is high or low, and whether injection pattern is poor).

Click hereEngine / Hybrid System>7GR-FKS (FUEL)>FUEL INJECTOR (for Port Injection)>INSPECTION

HINT:

Perform "Inspection After Repair" after replacing the fuel injector assembly (for port injection).

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION



Result:
Proceed to
OK
NG



OK

12.READ VALUE USING GTS (FUEL PRESSURE (HIGH))

NG

REPLACE FUEL INJECTOR ASSEMBLY (FOR PORT INJECTION)

Click hereEngine / Hybrid System>7GR-FKS (FUEL)>FUEL INJECTOR (for Port Injection)>REMOVAL


12.READ VALUE USING GTS (FUEL PRESSURE (HIGH))
a.

Connect the GTS to the DLC3.


b.

Start the engine.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine / Data List / Engine Speed, Coolant Temperature, Fuel Pressure (High) and Injection Mode.

Powertrain > Engine > Data List
Tester Display
Engine Speed
Coolant Temperature
Fuel Pressure (High)
Injection Mode
50003 372 211,205,265,294

e.

Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher with all the accessories switched off.


f.

According to the display on the GTS, read the Data List.

Standard:
GTS Display Condition Specified Condition
Fuel Pressure (High)
·

Shift position: P or neutral

·

A/C: Off

·

Engine warmed up

·

Engine Speed: 3000 rpm

·

Injection Mode: Direct


2400 to 20000 kPag



Result:
Proceed to
OK
NG



OK

13.INSPECT FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION)

NG

REPAIR OR REPLACE FUEL SYSTEM (FOR HIGH PRESSURE SIDE)

13.INSPECT FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION)
a.

Inspect the fuel injector assembly (for direct injection).

Click hereEngine / Hybrid System>7GR-FKS (FUEL)>FUEL INJECTOR (for Direct Injection)>INSPECTION

HINT:

Perform "Inspection After Repair" after replacing the fuel injector assembly (for direct injection).

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION



Result:
Proceed to
OK
NG



OK

14.REPLACE AIR FUEL RATIO SENSOR

NG

REPLACE FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION)

Click hereEngine / Hybrid System>7GR-FKS (FUEL)>FUEL INJECTOR (for Direct Injection)>REMOVAL


14.REPLACE AIR FUEL RATIO SENSOR
a.

Replace the air fuel ratio sensor.

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>AIR FUEL RATIO SENSOR>REMOVAL

HINT:

Perform "Inspection After Repair" after replacing the air fuel ratio sensor.

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION



Result:
Proceed to
NEXT



NEXT

15.CLEAR DTC
15.CLEAR DTC
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Clear the DTC.

Powertrain > Engine > Clear DTCs
50002 372

e.

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


Result:
Proceed to
NEXT



NEXT

16.CHECK WHETHER DTC OUTPUT RECURS (DTC P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823)
16.CHECK WHETHER DTC OUTPUT RECURS (DTC P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823)
a.

Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.


b.

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

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

c.

Input the DTC: P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823.


d.

Check the DTC judgment result.

Result:
Result Proceed to
NORMAL
(DTCs are not output) 		A
ABNORMAL
(DTC P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823 is output) 		B




A

END

B

REPLACE ECM

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>ECM>REMOVAL


17.CHECK FUEL LINE
a.

Check the fuel lines for leaks or blockage.


Result:
Proceed to
OK
NG



OK

GO TO FUEL PUMP CONTROL CIRCUIT

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>SFI SYSTEM>Fuel Pump Control Circuit


NG

REPAIR OR REPLACE FUEL SYSTEM

18.REPLACE AIR FUEL RATIO SENSOR
a.

Replace the air fuel ratio sensor.

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>AIR FUEL RATIO SENSOR>REMOVAL

HINT:

Perform "Inspection After Repair" after replacing the air fuel ratio sensor.

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION



Result:
Proceed to
NEXT



NEXT

19.CLEAR DTC
19.CLEAR DTC
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Clear the DTC.

Powertrain > Engine > Clear DTCs
50002 372

e.

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


Result:
Proceed to
NEXT



NEXT

20.CHECK WHETHER DTC OUTPUT RECURS (DTC P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823)
20.CHECK WHETHER DTC OUTPUT RECURS (DTC P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823)
a.

Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.


b.

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

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

c.

Input the DTC: P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823.


d.

Check the DTC judgment result.

Result:
Result Proceed to
NORMAL
(DTCs are not output) 		A
ABNORMAL
(DTC P219519, P219524, P219618, P219623, P219719, P219724, P219818 or P219823 is output) 		B




A

END

B

REPLACE ECM

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>ECM>REMOVAL