Contents Section: Testing & Diagnostics All sections

Engine Control System (Diagnostic Codes (P1451-U0293) & Circuit Tests) (Hybrid): Other Toyota Highlander II рестайлинг

Testing & Diagnostics 17 illustrations ~11245 words

MONITOR STRATEGY

Related DTCsP1451: Pressure sensor noise P1451: Pressure sensor stuck P1452: Pressure sensor low voltage P1453: Pressure sensor high voltage
Required Sensors/ComponentsCanister pump module
Frequency of OperationOnce per driving cycle: P1451 sensor constant voltage
DurationWithin 15 minutes: P1451 0.5 seconds: P1452,1453
MIL Operation2 driving cycles: P1451 Immediately: P1452, P1453
Sequence of OperationNone

TYPICAL ENABLING CONDITIONS

Monitor runs whenever these DTCs are not presentPressure sensor of canister pump module malfunction (P0450, P0452 and P0453)
Fuel tank pressure15 to 20 kPa
Battery voltage10.5 V or more
Intake air temperature4.4 to 50°C (40 to 122°F)
Either of the following conditions is metA or B
A. EngineRunning
B. Key-off duration5 or 7 or 9.5 hours

P1451 (NOISE MONITOR)

Monitor runs whenever these DTCs are not presentPressure sensor of canister pump module malfunction (P0452 and P0453) Fuel tank pressure sensor malfunction (P1452 and P1453)
EVAP key-off monitor runs when all of the following conditions are met
Atmospheric pressure70 to 111 kPa (525 to 833 mmHg)
Battery voltage10.5 V or more
Vehicle speedLess than 2.5 mph (4 km/h)
Ignition switchOff
Engine conditionNot running
Key-OFF duration5 or 7 or 9.5 hours
Purge VSVNot operated by scan tool
Vent valveNot operated by scan tool
Leak detection pumpNot operated by scan tool
Both of the following conditions are met before Key-OFFConditions 1 and 2
1. Duration that vehicle is being driven5 minutes or more
2. Purge flowExecuted
Engine coolant temperature4.4 to 35°C (40 to 95°F)
Intake air temperature4.4 to 35°C (40 to 95°F)

P1451 (STUCK MONITOR)

Key-off monitor sequence 1 to 15

Next sequence is run if the following condition is met
Atmospheric pressure changeLess than 0.3 kPa (gauge) (2.25 mmHg (gauge) per second

1. ATMOSPHERIC PRESSURE MEASUREMENT

Next sequence is run if all of the following conditions are metCondition 1, 2 and 3
1. Canister pressure when reference pressure measurement started1 kPa (gauge) (-7.5 mmHg (gauge) or less
2. Reference pressure4.75 to -0.957 kPa (gauge) (-35.62 to -7.18 mmHg (gauge)
3. Reference pressureSaturated

2. FIRST REFERENCE PRESSURE MEASUREMENT

Next sequence is run if the following condition is met
Canister pressure change after vent valve ON (Closed)0.3 kPa (gauge) (2.25 mmHg (gauge) or more

3. VENT VALVE CLOSE STUCK CHECK

Next sequence is run if the both of the following conditions are metCondition 1 and 2
1. Vacuum introduction time15 minutes or less
2. Canister pressureSaturated

4. VACUUM INTRODUCTION FOR CANISTER

Next sequence is run if the following condition is met
Canister pressure change for 10 seconds after purge VSV ON (Open).0.3 kPa (gauge) (2.25 mmHg (gauge) or more

5. PURGE VSV STUCK CLOSED CHECK

Next sequence is run if all of the following conditions are metCondition 1, 2, 3 and 4
1. Canister pressure when reference pressure measurement started1 kPa (gauge) (-7.5 mmHg (gauge) or less
2. Reference pressure4.75 to -0.957 kPa (gauge) (-35.62 to -7.18 mmHg (gauge)
3. Reference pressureSaturated
4. Reference pressure difference between the first and secondLess than 0.9 kPa (gauge) (6.75 mmHg (gauge)

6. SECOND REFERENCE PRESSURE MEASUREMENT

One of the sequence 8 or 9 is run if the following condition is met
Canister pressure when vacuum introduction for canister was completeSecond reference pressure or less

7. CANISTER LEAK CHECK

Sequence 14 is run if all of the following conditions are metConditions 1 and 2
1. Fuel tank pressure when EVAP monitor started2 kPa (gauge) (-15 mmHg (gauge) or less, or 3 kPa (gauge) (22.5 mmHg (gauge) or more
2. Fuel tank pressure change while TCV and vent valve are open0.5 kPa (gauge) (3.75 mmHg (gauge) or more

8. FUEL TANK CLOSED VALVE (TCV) STUCK CLOSED CHECK

Next sequence is run if both of the following conditions are metConditions 1 and 2
1. Fuel tank pressure when EVAP monitor started2 to 3 kPa (gauge) (-15 to 22.5 mmHg (gauge)
2. Vacuum introduction time15 minutes or less

9. VACUUM INTRODUCTION FOR FUEL TANK

Next sequence is run if the following condition is met
Fuel tank pressure change when vacuum introduction for fuel tank0.5 kPa (gauge) (3.75 mmHg (gauge) or more

10. TCV STUCK CLOSED CHECK

Next sequence is run if the following condition is met
Fuel tank pressure change when TCV closed0.35 kPa (gauge) (2.6 mmHg (gauge) or more

11. FUEL TANK PRESSURE SENSOR STUCK CHECK

Next sequence is run if all of the following conditions are metConditions 1, 2, 3, and 4
1. Fuel tank pressure when 1.9 seconds after reference pressure measurement began1 kPa (gauge) (-7.5 mmHg (gauge) or less
2. Reference pressure4.75 to -0.957 kPa (gauge) (-35.62 to -7.18 mmHg (gauge)
3. Reference pressureSaturated
4. Reference pressure difference between the second and thirdLess than 0.9 kPa (gauge) (6.75 mmHg (gauge)

12 THIRD REFERENCE PRESSURE MEASUREMENT

Sequence 15 is run if the following condition is met
Fuel tank pressure when vacuum introduction for fuel tank was completeLess than third reference pressure

13. FUEL TANK LEAK CHECK

Next sequence is run if the following condition is met
Fuel tank pressure change while TCV and vent valve are openLess than 0.35 kPa (gauge) (2.6 mmHg (gauge)

14. FUEL TANK PRESSURE SENSOR STUCK CHECK

Monitor is complete if the following condition is met
Atmospheric pressure difference between sequence 1 and 8Less than 0.3 kPa (gauge) (2.25 mmHg (gauge)

15. ATMOSPHERIC PRESSURE MEASUREMENT

TYPICAL MALFUNCTION THRESHOLDS

Frequency that canister pressure change is 0.3 kPa (2.25 mmHg) or more10 times or more in 10 seconds

1. P1451: PRESSURE SENSOR NOISE

Either of the following conditions 1 or 2 is met1 or 2
1. Following conditions met when fuel tank pressure is -2 kPa (-15 mmHg) or less, or 3 kPa (22.51 mmHg) or moreA and B
A. Fuel tank pressure change while TCV and vent valve are openLess than 0.35 kPa (2.62 mmHg)
B. Fuel tank pressure change while TCV and vent valve is closedLess than 0.35 kPa (2.62 mmHg)
2. Following conditions met when fuel tank pressure is between -2 kPa (-15 mmHg) and 3 kPa (22.51 mmHg)
Fuel tank pressure change when vacuum introduction for fuel tankLess than 0.5 kPa (3.75 mmHg)

2. P1451: PRESSURE SENSOR STUCK

Fuel tank pressureLess than -17.1875 kPa (-128.93 mmHg)

3. P1452: PRESSURE SENSOR LOW VOLTAGE

Fuel tank pressureMore than 23.9375 kPa (179.58 mmHg)

5. P1453: PRESSURE SENSOR HIGH VOLTAGE

Scheme 881

Scheme 881: CONFIRMATION DRIVING PATTERN

Note. The Evaporative System Check (Automatic Mode) consists of 9 steps performed automatically by the Techstream. It takes a maximum of approximately 18 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 run the engine during this operation. When the temperature of the fuel is 35°C (95°F) or more, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the fuel temperature below 35°C (95°F).

  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch ON and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the ignition switch off and wait for 30 seconds.
  5. Turn the ignition switch ON and turn the Techstream on.
  6. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode [A].
  7. After the Evaporative System Check is completed, check for DTC by entering the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
  8. Read the Pending DTC [B]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
  9. Enter the following menus: Powertrain / Engine and ECT / Utility / All readiness.
  10. Input the DTC: P1451, P1452 or P1453.
  11. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [A] again.
  12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  13. Check the judgment result. HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
  14. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 882

Scheme 882: WIRING DIAGRAM
Related DTCsP2102: Throttle actuator current (low current) P2103: Throttle actuator current (high current)
Required Sensors / Components (Main)Throttle actuator (throttle with motor body assembly)
Required Sensors / Components (Related)None
Frequency of OperationContinuous
DurationP2102: 2 seconds P2103: 25 times or 0.6 seconds
MIL OperationImmediately
Sequence of OperationNone
Monitor runs whenever following DTCs are not presentNone

ALL

Throttle actuatorON
Duty-cycle ratio to open throttle actuator80% or more
Throttle actuator power supply8 V or higher
Motor current change during latest 0.016 secondsLess than 0.2 A

P2102

Throttle actuatorON
Either of the following conditions 1 or 2 is met
1. Throttle actuator power supply8 V or higher
2. Throttle actuator powerON

P2103

Throttle actuator currentBelow 0.5 A

P2102

Either of the following conditions is metCondition 1 or 2
1. Hybrid IC diagnosis signalFail
2. Hybrid IC current limiter monitor portFail

P2103

Scheme 883

Scheme 883: CONFIRMATION DRIVING PATTERN
  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure), refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) .
  4. Turn the ignition switch off.
  5. Turn the ignition switch to ON and turn the Techstream on [A].
  6. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) .
  7. Start the engine.
  8. With the vehicle stationary, fully depress the accelerator pedal and quickly release it [B].
  9. Check that 16 seconds or more have elapsed from the instant when the accelerator pedal is first depressed.
  10. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
  11. Read the DTC [C]. HINT: If a DTC is output, the system is malfunctioning. If a DTC is not output, perform the following procedure.
  12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  13. Input the DTC: P2102 or P2103.
  14. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [C] again.
  15. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  16. Check the judgment result. HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
  17. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

FAIL-SAFE

When either of these DTCs, as well as other DTCs relating to electronic throttle control system malfunctions is stored, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator, and the throttle valve is returned to a 6° throttle angle by the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing, in accordance with the accelerator pedal opening angle, to allow the vehicle to continue running at a minimal speed. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly.

Fail-safe mode continues until a pass condition is detected, and the ignition switch is then turned off.

Scheme 884

Scheme 884: WIRING DIAGRAM
Related DTCsP2111: Throttle actuator stuck open P2112: Throttle actuator stuck closed
Required Sensors / Components (Main)Throttle actuator (throttle with motor body assembly)
Required Sensors / Components (Related)
Frequency of OperationContinuous
Duration0.5 seconds
MIL OperationImmediately
Sequence of OperationNone
Monitor runs whenever following DTCs are not presentNone

ALL

All of the following conditions are met
System guard* judge conditionON
Throttle actuator current2 A or more
Duty-cycle to close throttle80% or more

P2111 (THROTTLE ACTUATOR STUCK OPEN)

All of the following conditions are met
System guard* judge conditionON
Throttle actuator current2 A or more
Duty-cycle to open throttle80% or more

P2112 (THROTTLE ACTUATOR STUCK CLOSED)

*: System guard is ON when the following conditions set
Throttle actuatorON
Throttle actuator duty calculationExecuting
Throttle position sensor failNot detected
Throttle actuator current-cut operationNot executing
Throttle actuator power supply4 V or more
Throttle actuator failNot detected
Difference throttle position sensor voltage measurements taken at 0.016 seconds intervalsBelow 0.1 V for 0.5 seconds or more

P2111 (THROTTLE ACTUATOR STUCK OPEN)

Difference throttle position sensor voltage measurements taken at 0.016 seconds intervalsBelow 0.1 V for 0.5 seconds or more

P2112 (THROTTLE ACTUATOR STUCK CLOSED)

Scheme 885

Scheme 885: CONFIRMATION DRIVING PATTERN
  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure), refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) .
  4. Turn the ignition switch off.
  5. Turn the ignition switch to ON and turn the Techstream on [A].
  6. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) .
  7. Start the engine and fully depress and release the accelerator pedal quickly (to fully open and close the throttle valve).
  8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
  9. Read the DTC [B]. HINT: If a DTC is output, the system is malfunctioning. If a DTC is not output, perform the following procedure.
  10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  11. Input the DTC: P2111 or P2112.
  12. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, fully depress and release the accelerator pedal quickly.
  13. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  14. Check the judgment result. HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
  15. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

When either of these DTCs, as well as other DTCs relating to electronic throttle control system malfunctions is stored, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator, and the throttle valve is returned to a 6° throttle angle by the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing, in accordance with the accelerator pedal opening angle, to allow the vehicle to continue running at a minimal speed. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly.

Fail-safe mode continues until a pass condition is detected, and the ignition switch is then turned off.

PROCEDURE

  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2111 OR P2112) Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to P2111 or P2112 is output A P2111 or P2112 and other DTCs are output B HINT: If any DTCs other than P2111 or P2112 are output, troubleshoot those DTCs first. B --> See step 6 A: Go to next step
  2. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE) Check for contamination between the throttle valve and housing. If necessary, clean the throttle body. Also, check that the throttle valve moves smoothly. OK Throttle valve is not contaminated with foreign objects and moves smoothly. NG --> See step 4 OK: Go to next step
  3. READ VALUE USING TECHSTREAM (THROTTLE POSITION) Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Clear DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch ON. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Throttle Position No. 1, Throttle Position No. 2 and Throttle Position Command. Check the values displayed on the Techstream while wiggling the ECM wire harness. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Check for DTCs. RESULT Result Proceed to Value in Data List changes when wire harness is wiggled, or DTC is output* A Other than above B *: As the DTC was stored due to a change in the contact resistance of the connector, repair or replace the wire harness or connector, refer to «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-426649-S19284667942011101200000) . B --> See step 5 A --> REPAIR OR REPLACE HARNESS OR CONNECTOR
  4. REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY Replace the throttle with motor body assembly, refer to «REMOVAL»(ref-426780-S24526827482011101200000) . NEXT: Go to next step
  5. CHECK WHETHER DTC OUTPUT RECURS (DTC P2111 OR P2112) Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Clear the DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Start the engine, and then fully depress and release the accelerator pedal quickly to fully open and close the throttle valve. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC is not output A P2111 or P2112 is output B B --> See step 7 A --> END
  6. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-426655-S36857909882011101200000)
  7. REPLACE ECM. Refer to «REMOVAL»(ref-426780-S20256408682011101200000)
Related DTCsP2118: Throttle actuator power supply
Required Sensors / Components (Main)Throttle actuator, throttle valve (throttle with motor body assembly), ETCS fuse
Required Sensors / Components (Related)None
Frequency of OperationContinuous
Duration0.8 seconds
MIL OperationImmediately
Sequence of OperationNone
Monitor runs whenever following DTCs are not presentNone
Battery voltage8 V or higher
Electronic throttle actuator powerON
Throttle actuator power supply voltage (+BM)Below 4 V

COMPONENT OPERATING RANGE

Throttle actuator power supply voltage (+BM)11 to 14 V

Scheme 886

Scheme 886: CONFIRMATION DRIVING PATTERN
  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure), refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) .
  4. Turn the ignition switch off.
  5. Turn the ignition switch to ON and turn the Techstream on [A].
  6. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) .
  7. Start the engine.
  8. Slowly depress the accelerator pedal, raise the engine speed to approximately 2500 RPM for approximately 5 seconds, and then idle the engine [B].
  9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
  10. Read the DTC [C]. HINT: If a DTC is output, the system is malfunctioning. If a DTC is not output, perform the following procedure.
  11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  12. Input the DTC: P2118.
  13. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] and [C] again.
  14. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  15. Check the judgment result. HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
  16. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

When this DTC or other DTCs relating to electronic throttle control system malfunctions are stored, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator, and the throttle valve is returned to a 6° throttle angle by the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing, in accordance with the accelerator pedal opening angle, to allow the vehicle to continue at a minimal speed. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly. Fail-safe mode continues until a pass condition is detected, and the ignition switch is then turned off.

Scheme 887

Scheme 887: WIRING DIAGRAM
Related DTCsP2119: Electronic throttle control system malfunction
Required Sensors / Components (Main)Throttle actuator (throttle with motor body assembly)
Required Sensors / Components (Related)
Frequency of OperationContinuous
Duration1 second
MIL OperationImmediately
Sequence of OperationNone
Monitor runs whenever following DTCs are not presentNone
System guard* judge conditionON
*System guard is ON when the following conditions set
Throttle actuatorON
Throttle actuator duty calculationExecuting
Throttle position sensor failNot detected
Throttle actuator current-cut operationNot executing
Throttle actuator power supply4 V or more
Throttle actuator failNot detected
Either of the following conditions A or B is met
A. Commanded closed throttle position - current closed throttle position0.3 V or more for 1 second
B. Commanded open throttle position - current open throttle position0.3 V or more for 0.6 seconds

Scheme 888

Scheme 888: CONFIRMATION DRIVING PATTERN
  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure), refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) .
  4. Turn the ignition switch off.
  5. Turn the ignition switch to ON and turn the Techstream on [A].
  6. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) .
  7. Start the engine.
  8. Idle the engine for 20 seconds.
  9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
  10. Read the DTC [B]. HINT: If a DTC is output, the system is malfunctioning. If a DTC is not output, perform the following procedure.
  11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  12. Input the DTC: P2119.
  13. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, fully depress and release the accelerator pedal 3 times.
  14. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  15. Check the judgment result. HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
  16. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

When this DTC, as well as other DTCs relating to electronic throttle control system malfunctions is stored, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator, and the throttle valve is returned to a 6° throttle angle by the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing, in accordance with the accelerator pedal opening angle, to allow the vehicle to continue running at a minimal speed. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly. Fail-safe mode continues until a pass condition is detected, and the ignition switch is then turned off.

  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2119) Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. RESULT Result Proceed to P2119 is output A P2119 and other DTCs are output B HINT: If any DTCs other than P2119 are output, troubleshoot those DTCs first. B --> See step 8 A: Go to next step
  2. READ VALUE USING TECHSTREAM (THROTTLE POSITION) Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Clear DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . Turn the ignition switch ON off and wait for at least 30 seconds. Turn the ignition switch ON. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Throttle Position No. 1 and Throttle Position Command. Check the values displayed on the Techstream while fully depressing and releasing the accelerator pedal quickly. RESULT Result Proceed to Throttle Position No. 1 does not change A Throttle Position No. 1 changes even a little B HINT: When a DTC is output, the system changes to fail-safe mode. Therefore, only use the data up until the time the DTC is stored for confirmation. B --> See step 4 A: Go to next step
  3. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR) Inspect the throttle with motor body assembly, refer to «INSPECTION»(ref-426780-S27406188122011101200000) . NG --> See step 6 OK: Go to next step
  4. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE) Check for contamination between the throttle valve and housing. If necessary, clean the throttle body. Also, check that the throttle valve moves smoothly. OK Throttle valve is not contaminated with foreign objects and moves smoothly. NG --> See step 6 OK: Go to next step
  5. READ VALUE USING TECHSTREAM (THROTTLE POSITION) Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Clear DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . Turn the ignition switch ON off and wait for at least 30 seconds. Turn the ignition switch ON. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Throttle Position No. 1, Throttle Position No. 2 and Throttle Position Command. Check the values displayed on the Techstream while wiggling the ECM wire harness. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Check for DTCs. RESULT Result Proceed to Value in Data List changes when wire harness is wiggled, or DTC is output* A Other than above B As the DTC was stored due to a change in the contact resistance of the connector, repair or replace the wire harness or connector, refer to «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-426649-S19284667942011101200000) . B --> See step 7 A --> REPAIR OR REPLACE HARNESS OR CONNECTOR
  6. REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY Inspect the throttle body assembly, refer to «REMOVAL»(ref-426780-S24526827482011101200000) . NEXT: Go to next step
  7. CHECK WHETHER DTC OUTPUT RECURS (DTC P2119) Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Clear DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Allow the engine to idle for 15 seconds or more. Fully depress and release the accelerator pedal several times quickly. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. RESULT Result Proceed to No DTC is output A P2119 is output B B --> See step 9 A --> END
  8. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-426655-S36857909882011101200000)
  9. REPLACE ECM. Refer to «REMOVAL»(ref-426780-S20256408682011101200000)
Related DTCsP2195: Air fuel ratio sensor (Bank 1) signal stuck lean P2196: Air fuel ratio sensor (Bank 1) signal stuck rich P2197: Air fuel ratio sensor (Bank 2) signal stuck lean P2198: Air fuel ratio sensor (Bank 2) signal stuck rich
Required Sensors/Components (Main)Air fuel ratio sensor
Required Sensors/Components (Related)Heated oxygen sensor
Frequency of OperationContinuous
Duration3 seconds: Sensor current 5 seconds: Rationality
MIL Operation2 driving cycles
Sequence of OperationNone
Monitor runs whenever following DTCs are not presentP0016, P0018 (VVT system bank 1, 2 - misalignment) P0031, P0032, P0051, P0052, P101D, P103D (Air fuel ratio sensor heater) P0102, P0103 (Mass air flow meter) P0107, P0108 (Manifold absolute pressure) P0112, P0113 (Intake air temperature sensor) P0115, P0117, P0118 (Engine coolant temperature sensor) P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (Throttle position sensor) P0125 (Insufficient engine coolant temperature for closed loop) P0128 (Thermostat) P0171, P0172, P0174, P0175 (Fuel system) P0301, P0302, P0303, P0304, P0305, P0306 (Misfire) P0335 (Crankshaft position sensor) P0401 (EGR system) P0451, P0452, P0453, P1451, P1452, P1453 (Evaporative emission control system) P0505 (Idle speed control) P219A, P219B (Air fuel ratio sensor - imbalance)

ALL

Time after engine start30 seconds or more
Fuel system statusClosed-loop

SENSOR VOLTAGE DETECTION MONITOR

Battery voltage11 V or more
Engine coolant temperature70°C (158°F) or more
Atmospheric pressure101 kPa (760 mmHg) or more
Air fuel ratio sensor statusActivated
Continuous time of fuel cut3 to 10 seconds

SENSOR CURRENT DETECTION MONITOR

Rear heated oxygen sensor voltage0.21 V or higher
Air fuel ratio sensor voltageHigher than 3.8 V

SENSOR VOLTAGE DETECTION MONITOR (LEAN SIDE MALFUNCTION P2195, P2197)

Rear heated oxygen sensor voltageBelow 0.59 V
Air fuel ratio sensor voltageBelow 2.8 V

SENSOR VOLTAGE DETECTION MONITOR (RICH SIDE MALFUNCTION P2196, P2198)

Air fuel ratio sensor current2.2 mA or more

SENSOR CURRENT DETECTION MONITOR (HIGH SIDE MALFUNCTION P2195, P2197)

Air fuel ratio sensor currentLess than 0.7 mA

SENSOR CURRENT DETECTION MONITOR (LOW SIDE MALFUNCTION P2196, P2198)

MONITOR RESULT

Refer to Checking Monitor Status, refer to CHECKING MONITOR STATUS .

Scheme 889

Scheme 889: WIRING DIAGRAM

CONFIRMATION DRIVING PATTERN

This confirmation driving pattern is used in the "Perform Confirmation Driving Pattern" procedure of the following diagnostic troubleshooting procedure.

Scheme 890

Scheme 890: CONFIRMATION DRIVING PATTERN

Scheme 891

Scheme 891
  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch ON.
  3. Turn the Techstream on.
  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure), refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) .
  5. Turn the ignition switch off.
  6. Turn the ignition switch ON and turn the Techstream on.
  7. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) .
  8. Start the engine, and warm it up until the engine coolant temperature reaches 70°C (167°F) or more [A].
  9. On Techstream, enter the following menus to check the fuel-cut status: Powertrain / Engine and ECT / Data List / Idle Fuel Cut.
  10. Drive the vehicle at between 38 and 75 mph (60 and 120 km/h) for at least 10 minutes [B]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
  11. Move the shift lever to S, select the S4 range [C].
  12. Accelerate the vehicle to 40 mph (64 km/h) or more by depressing the accelerator pedal for at least 10 seconds [D].
  13. Soon after performing step [D] above, release the accelerator pedal for at least 4 seconds without depressing the brake pedal in order to execute fuel-cut control [E]. HINT: Fuel-cut is performed when the following conditions are met: Accelerator pedal is fully released. Vehicle speed is 22 mph (35 km/h) or more (fuel injection returns at 1000 RPM).
  14. Allow the vehicle to decelerate until the vehicle speed decreases to less than 6 mph (10 km/h) [F].
  15. Repeat steps [C] through [E] above at least 3 times in one driving cycle.
  16. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
  17. Read the pending DTCs [F]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
  18. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  19. Input the DTC: P2195, P2196, P2197 or P2198.
  20. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [F].
  21. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO P2195, P2196, 2197 OR P2198) Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P2195, P2196, P2197, or P2198 is output A "P2195, P2196, P2197 or P2198" and "P0136, P0137, P0138, P0156, P0157 or P0158" are output A DTC P2195, P2196, P2197, or P2198 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. B --> See step 19 A: Go to next step
  2. CONFIRM IF VEHICLE HAS RUN OUT OF FUEL IN PAST Has the vehicle run out of fuel in the past? NO --> See step 4 YES: Go to next step
  3. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Clear the DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . Turn the ignition switch off. Turn the ignition switch ON and turn the Techstream on. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Start the engine and warm it up. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P2195, P2196, P2197 or P2198. Check the DTC judgment result. Result Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P2195, P2196, P2197 or P2198 is output) B B --> See step 4 A --> DTC CAUSED BY RUNNING OUT OF FUEL
  4. READ VALUE USING TECHSTREAM (TEST VALUE OF AIR FUEL RATIO SENSOR) Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Clear the DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . Allow the vehicle to drive in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Monitor / O2 Sensor. Check that the status of O2 Sensor is Complete. If the status is still Incomplete, drive the vehicle according to the driving pattern again. Enter the following menus: Powertrain / Engine and ECT / Monitor / O2 Sensor / Details / RANGE B1S1 or RANG B2S1 / Details. Check the test value of the air fuel ratio sensor output current during fuel cut. Result Test Value Proceed to Within normal range (1.0 mA or more, and less than 3.6 mA) A Outside normal range (Less than 1.0 mA, or 3.6 mA or more) B B --> See step 16 A: Go to next step
  5. READ VALUE USING TECHSTREAM (OUTPUT VOLTAGE OF AIR FUEL RATIO SENSOR) Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Start the engine. Warm up the air fuel ratio sensor at an engine speed of 2500 RPM for 90 seconds. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume. Perform the Control the Injection Volume operation with the engine idling. Monitor the output voltages of the air fuel ratio and heated oxygen sensors (AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2) displayed on the Techstream. HINT: Change the fuel injection volume within the range of -12.0% to +12.0%. The injection volume can be changed in fine gradations. 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. Techstream Display (Sensor) Injection Volume Status Voltage AFS Voltage B1S1 or AFS Voltage B2S1 (Air fuel ratio) +12.0% Rich Below 3.1 V AFS Voltage B1S1 or AFS Voltage B2S1 (Air fuel ratio) -12.0% Lean Higher than 3.4 V O2S B1S2 or O2S B2S2 (Heated oxygen) +12.0% Rich Higher than 0.55 V O2S B1S2 or O2S B2S2 (Heated oxygen) -12.0% Lean Below 0.4 V RESULT Status of AFS Voltage B1S1 or AFS Voltage B2S1 Status of O2S B1S2 or O2S B2S2 Air Fuel Ratio Condition and Air Fuel Ratio Sensor Condition Misfire Suspected Trouble Area Proceed to Lean Lean Actual air fuel ratio lean May occur PCV valve and hose PCV hose connections Fuel injector assembly blockage Gas leaks from exhaust system Intake system Fuel pressure Mass air flow meter sub-assembly Manifold absolute pressure sensor Engine coolant temperature sensor EGR valve assembly A Rich Rich Actual air fuel ratio rich - Fuel injector assembly leakage or blockage Gas leaks from exhaust system Ignition system Fuel pressure Mass air flow meter sub-assembly Manifold absolute pressure sensor Engine coolant temperature sensor A Lean Lean/Rich Air fuel ratio sensor malfunction - Air fuel ratio sensor B Rich Lean/Rich Air fuel ratio sensor malfunction - Air fuel ratio sensor B Lean/Rich Lean/Rich Normal - - C Lean: During the Control the Injection Volume Active Test, the air fuel ratio sensor output voltage (AFS Voltage) is consistently higher than 3.4 V, and the heated oxygen sensor output voltage (O2S) is consistently below 0.4 V. Rich: During the Control the Injection Volume Active Test, the AFS Voltage is consistently below 3.1 V, and the O2S is consistently higher than 0.55 V. Lean/Rich: During the Control the Injection Volume Active Test, the output voltage of the heated oxygen sensor alternates correctly. HINT: Refer to "Data List / Active Test" [AFS Voltage B1S1, AFS Voltage B2S1, O2S B1S2 and O2S B2S2], refer to «DATA LIST / ACTIVE TEST»(ref-426655-S42617637412011101200000) . B --> See step 16 C --> See step 20 A: Go to next step
  6. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks, refer to «ON-VEHICLE INSPECTION - Step 1»(ref-426782-S32913494442011101200000) . OK No leaks in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
  7. CHECK EXHAUST GAS LEAK Check for exhaust gas leaks. OK No gas leaks. NG --> REPAIR OR REPLACE EXHAUST SYSTEM OK: Go to next step
  8. CHECK FUEL PRESSURE Check the fuel pressure, refer to «ON-VEHICLE INSPECTION - Step 2»(ref-426786-S07299980892011101200000) . NG --> See step 18 OK: Go to next step
  9. INSPECT FUEL INJECTOR ASSEMBLY Check the fuel injector assembly (whether fuel volume is high or low, and whether injector pattern is poor), refer to «INSPECTION»(ref-426781-S11577686352011101200000) . NG --> See step 21 OK: Go to next step
  10. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor, refer to «REMOVAL»(ref-426780-S22078568692011101200000) . NEXT: Go to next step
  11. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Clear the DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . Turn the ignition switch off. Turn the ignition switch ON and turn the Techstream on. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Start the engine and warm it up. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P2195, P2196, P2197 or P2198. Check the DTC judgment result. Result Result Proceed to ABNORMAL (DTC P2195, P2196, P2197 or P2198 is output) A NORMAL (DTC is not output) B B --> END A: Go to next step
  12. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more. HINT: The A/C switch and all accessory switches should be off. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position. Confirm the Throttle Idle Position is ON and check the engine idling condition and MAP values in the Data List while performing the Active Test. HINT: Do not leave the EGR valve open for 10 seconds or more during Active Test. Be sure to return the EGR valve to step 0 when Active Test is completed. OK MAP and idling condition change in response to EGR step position as follows. Standard - EGR Step Position (Active Test) 0 Steps 0 to 30 Steps Idling condition Steady idling Idling changes from steady to rough idling or engine stall MAP (Data List) 20 to 40 kPa (150 to 300 mmHg) (EGR valve is fully closed) MAP value is at least +10 kPa (75 mmHg) higher than when EGR valve is fully closed HINT: During Active Test, if the idling condition does not change in response to EGR step position, then there is probably a malfunction in EGR valve. OK --> See step 14 NG --> See step 13
  13. INSPECT EGR VALVE ASSEMBLY Remove the EGR valve assembly, refer to «REMOVAL»(ref-426771-S16321691292011101200000) . Check if the EGR valve is stuck open. OK EGR valve is tightly closed. Reinstall the EGR valve assembly, refer to «INSTALLATION»(ref-426771-S21548001202011101200000) . NG --> See step 22 OK: Go to next step
  14. REPLACE ECM Replace the ECM, refer to «REMOVAL»(ref-426780-S20256408682011101200000) . NEXT: Go to next step
  15. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Clear the DTC, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . Turn the ignition switch off. Turn the ignition switch ON and turn the Techstream on. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Start the engine and warm it up. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P2195, P2196, P2197 or P2198. Check the DTC judgment result. NEXT --> END
  16. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor, refer to «REMOVAL»(ref-426780-S22078568692011101200000) . NEXT: Go to next step
  17. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Clear the DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . Turn the ignition switch off. Turn the ignition switch ON and turn the Techstream on. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Start the engine and warm it up. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P2195, P2196, P2197 or P2198. Check the DTC judgment result. Result Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P2195, P2196, P2197 or P2198 is output) B B --> See step 23 A --> END
  18. CHECK FUEL LINE Check the fuel lines for leaks or blockage. NG --> REPAIR OR REPLACE FUEL LINE OK --> See step 24
  19. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-426655-S36857909882011101200000)
  20. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-426655-S18110562592011101200000)
  21. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-426781-S31021276762011101200000)
  22. REPLACE EGR VALVE ASSEMBLY. Refer to «REMOVAL»(ref-426771-S16321691292011101200000)
  23. REPLACE ECM. Refer to «REMOVAL»(ref-426780-S20256408682011101200000)
  24. REPLACE FUEL PUMP. Refer to «REMOVAL»(ref-426781-S29046169732011101200000)
Related DTCsP219A: Air fuel ratio cylinder imbalance monitor (bank 1) P219B: Air fuel ratio cylinder imbalance monitor (bank 2)
Required Sensors/Components (Main)Air fuel ratio sensor, Crankshaft position sensor
Required Sensors/Components (Related)Mass air flow meter sub-assembly, Engine coolant temperature sensor, Vehicle speed sensor
Frequency of OperationOnce per driving cycle
Duration10 to 15 seconds
MIL Operation2 driving cycles
Sequence of OperationNone
Monitor runs whenever following DTCs are not presentP0010, P0020 (Camshaft timing oil control valve assembly bank 1, 2) P0011, P0021 (VVT system bank 1, 2 - advance) P0012, P0022 (VVT system bank 1, 2 - retard) P0016, P0018 (VVT system bank 1, 2 - misalignment) P0031, P0032, P0051, P0052, P101D, P103D (Air fuel ratio sensor heater) P0102, P0103 (Mass air flow meter) P0107, P0108 (Manifold absolute pressure) P0115, P0117, P0118 (Engine coolant temperature sensor) P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (Throttle position sensor) P0125 (Insufficient coolant temperature for closed loop fuel control) P0327, P0328, P0332, P0333 (Knock sensor) P0335 (Crankshaft position sensor) P0340, P0342, P0343, P0345, P0347, P0348 (VVT sensor) P0351, P0352, P0353, P0354, P0355, P0356 (Igniter) P0401 (EGR system)

ALL

Air fuel ratio sensor statusActivated
Engine speed1400 to 2000 RPM
Engine coolant temperature75°C (167°F) or higher
Atmospheric pressure76 kPa (570 mmHg) or higher
Fuel system statusClosed loop
Mass air flow24 to 36 gm/s
Engine Load47 to 55%

AIR FUEL RATIO SENSOR MONITORING METHOD

Engine speed1100 to 1500 RPM
Engine Load40 to 50%
Engine coolant temperature75°C (167°F) or higher
Air fuel ratio sensor statusActivated
Fuel system statusClosed loop
Battery voltage11 V or higher

CRANKSHAFT POSITION SENSOR MONITORING METHOD (FIRST JUDGMENT)

Vehicle speedLess than 1.875 mph (3 km/h)
Engine speed1050 to 1350 RPM
Engine coolant temperature75°C (167°F) or higher
Air fuel ratio sensor statusActivated
Fuel system statusClosed loop
Battery voltage11 V or higher

CRANKSHAFT POSITION SENSOR MONITORING METHOD (SECOND JUDGMENT)

Air fuel ratio sensor monitoring method criteria0.048 or more

P219A: AIR FUEL RATIO SENSOR MONITORING METHOD (BANK 1)

Air fuel ratio sensor monitoring method criteria0.053 or more

P219B: AIR FUEL RATIO SENSOR MONITORING METHOD (BANK 2)

Crankshaft position sensor monitoring method criteria (first judgment)1.5 or more

CRANKSHAFT POSITION SENSOR MONITORING METHOD (FIRST JUDGMENT)

Crankshaft position sensor monitoring method criteria (second judgment)1 or more

CRANKSHAFT POSITION SENSOR MONITORING METHOD (SECOND JUDGMENT)

HINT

If the first judgment while driving shows that the value of Engine Speed Fluctuation Average is between 0.5 and 1.5, then second judgment will be performed when the vehicle is stopped and the engine is idling.

Refer to Checking Monitor Status, refer to CHECKING MONITOR STATUS .

Scheme 892

Scheme 892: CONFIRMATION DRIVING PATTERN
  1. Connect the Techstream to the DLC3.
  2. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [A]. HINT: Warm up the engine so that the SOC (State of Charge) may become 60% or more.
  3. Turn the Techstream on.
  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation). WARNING: Use the Techstream to clear the DTC (Do not disconnect the cable from negative (-) battery terminal to clear the DTC).
  5. Gradually accelerate the vehicle from 37 mph (60 km/h) taking approximately 10 to 20 seconds. HINT: Refer to Typical Enabling Conditions for mass air flow and engine speed, and then accelerate the vehicle from 37 mph (60 km/h).
  6. Drive the vehicle at 37 mph (60 km/h) or higher for 1 minutes or more [B]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: Electrical load can be applied while the vehicle is driven.
  7. Idle the engine for 1 minute or more [C]. HINT: Shift lever should be in D.
  8. Repeat steps [B] through [C] above at least 3 times [D].
  9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending [E].
  10. 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.
  11. Gradually accelerate the vehicle from 37 mph (60 km/h) taking approximately 20 to 30 seconds. HINT: Refer to Typical Enabling Conditions for mass air flow and engine speed, and then accelerate the vehicle from 37 mph (60 km/h).
  12. Drive the vehicle at 37 mph (60 km/h) or higher for 1 minutes or more [F]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: Electrical load can be applied while the vehicle is driven.
  13. Idle the engine for 1 minute or more [G]. HINT: Shift lever should be in D.
  14. Repeat steps [F] through [G] above at least 2 times [H].
  15. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending [I].
  16. 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.
  17. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  18. Input the DTC: P219A or P219B.
  19. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform the following procedure.
  20. If no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO P219A AND P219B) Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. RESULT Result Proceed to DTC P219A and/or P219B is output A DTC P219A and/or P219B and other DTCs are output B HINT: If any DTCs other than P219A and/or P219B are output, troubleshoot those DTCs first. B --> See step 17 A: Go to next step
  2. READ VALUE USING TECHSTREAM (FREEZE FRAME DATA) Connect the Techstream to the DLC3. Turn the ignition switch ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored, refer to «FREEZE FRAME DATA»(ref-426655-S01852787212011101200000) . Freeze Frame Data Item for DTC P219A and/or P219B Vehicle Speed Engine Speed Calculate Load Accelerator Idle Position Short FT #1, #2 Long FT #1, #2 Cylinder #1 Misfire Count to Cylinder #6 Misfire Count A/F Sensor Determination (worst value) #1, #2 Engine Speed Fluctuation Avg (worst value) #1 to #6 HINT: If [Shot FT + Long FT] shows a positive value, then the air fuel ratio is lean. A negative value means that the air fuel ratio is rich. NEXT: Go to next step
  3. READ VALUE USING TECHSTREAM (MONITOR RESULT) Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. HINT: If the value of "Cylinder #1 Misfire Count to Cylinder #6 Misfire Count" increases while idling or driving, proceed to step 6 Inspect the cylinders which have an increased misfire count as indicated by "Cylinder #1 Misfire Count to Cylinder #6 Misfire Count". Enter the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor / Fuel System / Details / A/F SENSOR DETERMINATION B1, B2 and ENGINE SPEED FLUCTUATION AVERAGE B1, B2. Check the Test Result (A/F SENSOR DETERMINATION B1, B2 and ENGINE SPEED FLUCTUATION AVERAGE B1, B2. RESULT Result Proceed to A/F SENSOR DETERMINATION is Fail A A/F SENSOR DETERMINATION and ENGINE SPEED FLUCTUATION AVERAGE are Fail B ENGINE SPEED FLUCTUATION AVERAGE is Fail B* HINT: If neither A/F SENSOR DETERMINATION nor ENGINE SPEED FLUCTUATION AVERAGE shows Fail (both remain showing Pass), then drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern again. If Fail is not displayed (Pass is still displayed) after driving, proceed to step 4. Inspect the cylinders which have the larger values, focusing on the cylinder which has the largest value, as indicated by "Engine Speed Fluctuation Avg (worst value) #1 to #6". B --> See step 6 A: Go to next step
  4. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE INJECTION VOLUME) Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Warm up the engine. HINT: The A/C switch and all accessory switches should be off and the shift lever should be in P or N. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume / Data List / Cylinder #1 to #6 Misfire Count. HINT: If the misfire count increases when Control the Injection Volume is selected (the injection volume is 0%), proceed to step 6, Check Intake System. Perform the Control the Injection Volume operation with the engine idling. Check Cylinder #1 to #6 Misfire Count while decreasing the injection volume in increments of 5%. NOTE: Do not decrease the injection volume to lower than 20%. Result It can be determined that the cylinder whose misfire count does not increase is rich. Therefore, inspect the cylinders whose misfire counts do not increase. NEXT: Go to next step
  5. CHECK FOR EXHAUST GAS LEAK Check for exhaust gas leaks. OK No exhaust gas leaks. NG --> REPAIR OR REPLACE EXHAUST SYSTEM OK: Go to next step
  6. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks, refer to «ON-VEHICLE INSPECTION - Step 1»(ref-426782-S32913494442011101200000) . OK No leaks in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
  7. INSPECT SPARK PLUG Inspect the spark plug of the unbalanced cylinder, refer to «ON-VEHICLE INSPECTION - Step 2»(ref-426772-S22666911242011101200000) . NG --> See step 18 OK: Go to next step
  8. CHECK FOR SPARK AND IGNITION Perform a spark test, refer to «ON-VEHICLE INSPECTION - Step 1»(ref-426772-S22666911242011101200000) . WARNING: Always disconnect all injector connectors. NOTE: Do not crank the engine for more than 2 seconds. OK Sparks jump across electrode gap. NG --> See step 15 OK: Go to next step
  9. CHECK CYLINDER COMPRESSION PRESSURE Measure the cylinder compression pressure of the misfiring cylinder, refer to «ON-VEHICLE INSPECTION - Step 10»(ref-426765-S34632952792011101200000) . NG --> CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION OK: Go to next step
  10. CHECK FUEL INJECTOR ASSEMBLY (POWER SOURCE) See step 1 NG --> See step 19 OK: Go to next step
  11. CHECK HARNESS AND CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM) See step 3 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM) OK: Go to next step
  12. CHECK FUEL INJECTOR ASSEMBLY Check the fuel injector injection [whether fuel volume is high or low, and whether injection pattern is poor], refer to «INSPECTION - Step 1»(ref-426781-S01891560612011101200000) . NG --> See step 20 OK: Go to next step
  13. CHECK FOR CAUSE OF FAILURE If the diagnosis procedure has been performed and the malfunctioning part cannot be determined, perform the following inspection. Check for deposits on the intake valve. HINT: The DTC may have been stored due to deposits that have accumulated in the intake valve. Therefore, remove the cylinder head and inspect the intake valve. Check for deposits in the EGR delivery chamber. HINT: The DTC may have been stored due to deposits that have accumulated in the EGR delivery chamber. Therefore, remove and inspect the EGR delivery chamber. NEXT: Go to next step
  14. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. Check for DTCs. Result P219A or P219B is not output. NEXT --> END
  15. CHANGE TO NORMAL SPARK PLUG AND CHECK SPARK OF IMBALANCE CYLINDER Change the installed spark plug to a known good spark plug. Perform a spark test, refer to «ON-VEHICLE INSPECTION - Step 1»(ref-426772-S22666911242011101200000) . WARNING: Always disconnect all injector connectors. NOTE: Do not crank the engine for more than 2 seconds. OK Sparks jump across electrode gap. NG --> See step 16 OK --> See step 21
  16. CHANGE TO NORMAL IGNITION COIL ASSEMBLY AND CHECK SPARK OF IMBALANCE CYLINDER Change the ignition coil assembly to a known good ignition coil assembly. Perform a spark test, refer to «ON-VEHICLE INSPECTION - Step 1»(ref-426772-S22666911242011101200000) . WARNING: Always disconnect all fuel injector connectors. NOTE: Do not crank the engine for more than 2 seconds. OK Sparks jump across electrode gap. NG --> See step 23 OK --> See step 22
  17. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-426655-S36857909882011101200000)
  18. REPLACE SPARK PLUG. Refer to «REMOVAL»(ref-426787-S18760883532011101200000)
  19. GO TO FUEL INJECTOR. Refer to «Fuel Injector Circuit»(ref-426777-S11372944682011101200000)
  20. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-426781-S31021276762011101200000)
  21. REPLACE SPARK PLUG. Refer to «REMOVAL»(ref-426787-S18760883532011101200000)
  22. REPLACE IGNITION COIL ASSEMBLY. Refer to «REMOVAL»(ref-426787-S18760883532011101200000)
  23. REPLACE ECM. Refer to «REMOVAL»(ref-426780-S20256408682011101200000)
Related DTCsP2237: Air fuel ratio sensor (Bank 1) open circuit between A1A+ and A1A- P2238: Air fuel ratio sensor (Bank 1) short circuit between A1A+ and A1A- P2238: Air fuel ratio sensor (Bank 1) short circuit between A1A+ and GND P2238: Air fuel ratio sensor (Bank 1) low admittance P2239: Air fuel ratio sensor (Bank 1) short circuit between A1A+ and +B P2240: Air fuel ratio sensor (Bank 2) open circuit between A2A+ and A2A- P2241: Air fuel ratio sensor (Bank 2) short circuit between A2A+ and A2A- P2241: Air fuel ratio sensor (Bank 2) short circuit between A2A+ and GND P2241: Air fuel ratio sensor (Bank 2) low admittance P2242: Air fuel ratio sensor (Bank 2) short circuit between A2A+ and +B P2252: Air fuel ratio sensor (Bank 1) short circuit between A1A- and GND P2253: Air fuel ratio sensor (Bank 1) short circuit between A1A- and +B P2255: Air fuel ratio sensor (Bank 2) short circuit between A2A- and GND P2256: Air fuel ratio sensor (Bank 2) short circuit between A2A- and +B
Required Sensors / Components (Main)Air fuel ratio sensor
Required Sensors / Components (Related)Engine coolant temperature sensor, crankshaft position sensor
Frequency of OperationContinuous
DurationP2237 and P2240: 10 seconds P2238 and P2241 (air fuel ratio sensor low admittance): 10 seconds Others: 5 seconds
MIL Operation2 driving cycles
Sequence of OperationNone
Monitor runs whenever following DTCs are not presentP0016, P0018 (VVT system bank 1, 2 - misalignment) P0031, P0032, P0051, P0052, P101D, P103D (Air fuel ratio sensor heater) P0102, P0103 (Mass air flow meter) P0107, P0108 (Manifold absolute pressure) P0112, P0113 (Intake air temperature sensor) P0115, P0117, P0118 (Engine coolant temperature sensor) P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (Throttle position sensor) P0125 (Insufficient engine coolant temperature for closed loop) P0128 (Thermostat) P0171, P0172, P0174, P0175 (Fuel system) P0301, P0302, P0303, P0304, P0305, P0306 (Misfire) P0335 (Crankshaft position sensor) P0401 (EGR system) P0451, P0452, P0453, P1451, P1452, P1453 (Evaporative emission control system) P0505 (Idle speed control) P219A, P219B (Air fuel ratio sensor - imbalance)
Estimated sensor temperature450 to 550°C (842 to 1022°F)
EngineRunning
Battery voltage11 V or more

P2237 AND P2240 (AIR FUEL RATIO SENSOR OPEN CIRCUIT BETWEEN A1A+ AND A1A-/A2A+ AND A2A-)

Estimated sensor temperature700 to 800°C (1292 to 1472°F)
Engine coolant temperature5°C (41°F) or more (varies with engine coolant temperature at engine start)
Fuel cutNot executed

P2238 AND P2241 (LOW ADMITTANCE)

Battery voltage11 V or more
Ignition switchON
Time after ignition switch is off to ON5 seconds or more

OTHERS

Air fuel ratio sensor admittanceLess than 0.002 1/ohms

P2237 AND P2240 (OPEN CIRCUIT BETWEEN A1A+ AND A1A-/A2A+ AND A2A-)

Air fuel ratio sensor admittanceLess than 0.0074 1/ohms

P2238 AND P2241 (LOW ADMITTANCE)

A1A+/A2A+ terminal voltage0.5 V or less

P2238 AND P2241 (SHORT CIRCUIT BETWEEN A1A+ AND GND/A2A+ AND GND)

Difference between A1A+ and A1A-/A2A+ and A2A- terminal voltage0.1 V or less

P2238 AND P2241 (SHORT CIRCUIT BETWEEN A1A+ AND A1A-/A2A+ AND A2A-)

A1A+/A2A+ terminal voltageMore than 4.5 V

P2239 AND P2242 (SHORT CIRCUIT BETWEEN A1A+ AND +B/A2A+ AND +B)

A1A-/A2A- terminal voltage0.5 V or less

P2252 AND P2255 (SHORT CIRCUIT BETWEEN A1A- AND GND/A2A- AND GND)

A1A-/A2A- terminal voltageMore than 4.5 V

P2253 AND P2256 (SHORT CIRCUIT BETWEEN A1A- AND +B/A2A- AND +B)

Air fuel ratio sensor admittance0.0074 1/ohms or more
A1A+/A2A+ terminal voltage0.5 to 4.5 V
A1A-/A2A- terminal voltage0.5 to 4.5 V
Difference between A1A+/A2A+ and A1A-/A2A- terminal voltages0.1 to 0.8 V

Scheme 893

Scheme 893: CONFIRMATION DRIVING PATTERN
  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure), refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) .
  4. Turn the ignition switch off.
  5. Turn the ignition switch to ON and turn the Techstream on [A].
  6. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) .
  7. Start the engine and wait 2 minutes.
  8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending [B].
  9. Read the pending DTC. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
  10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  11. Input the DTC: P2237, P2238, P2239, P2240, P2241, P2242, P2252, P2253, P2255 or P2256.
  12. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, idle the engine for 3 minutes.
  13. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  14. Check the judgment result [C]. HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
  15. If the test result is INCOMPLETE or UNKNOWN, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
Related DTCP2420: Vent valve stuck open
Required Sensors/ComponentsPurge VSV and canister pump module
Frequency of OperationOnce per driving cycle
DurationWithin 2 minutes (varies with amount of fuel in tank)
MIL Operation2 driving cycles
Sequence of OperationNone
Monitor runs whenever these DTCs are not presentPressure sensor of canister pump module malfunction (P0452 and P0453) Fuel tank pressure sensor malfunction (P1452 and P1453)
EVAP key-off monitor runs when all of the following conditions are met
Atmospheric pressure70 to 111 kPa (525 to 833 mmHg)
Battery voltage10.5 V or more
Vehicle speedLess than 2.5 mph (4 km/h)
Ignition switchOff
Engine conditionNot running
Key-OFF duration5 or 7 or 9.5 hours
Purge VSVNot operated by scan tool
Vent valveNot operated by scan tool
Leak detection pumpNot operated by scan tool
Both of the following conditions are met before Key-OFFConditions 1 and 2
1. Duration that vehicle is being driven5 minutes or more
2. Purge flowExecuted
Engine coolant temperature4.4 to 35°C (40 to 95°F)
Intake air temperature4.4 to 35°C (40 to 95°F)

Key-off monitor sequence 1 to 15

Next sequence is run if the following condition is met
Atmospheric pressure changeLess than 0.3 kPa (gauge) (2.25 mmHg (gauge) per second

1. ATMOSPHERIC PRESSURE MEASUREMENT

Next sequence is run if all of the following conditions are metCondition 1, 2 and 3
1. Canister pressure when reference pressure measurement started1 kPa (gauge) (-7.5 mmHg (gauge) or less
2. Reference pressure4.75 to -0.957 kPa (gauge) (-35.62 to -7.18 mmHg (gauge)
3. Reference pressureSaturated

2. FIRST REFERENCE PRESSURE MEASUREMENT

Next sequence is run if the following condition is met
Canister pressure change after vent valve ON (Closed)0.3 kPa (gauge) (2.25 mmHg (gauge) or more

3. VENT VALVE CLOSE STUCK CHECK

Next sequence is run if the both of the following conditions are metCondition 1 and 2
1. Vacuum introduction time15 minutes or less
2. Canister pressureSaturated

4. VACUUM INTRODUCTION FOR CANISTER

Next sequence is run if the following condition is met
Canister pressure change for 10 seconds after purge VSV ON (Open).0.3 kPa (gauge) (2.25 mmHg (gauge) or more

5. PURGE VSV STUCK CLOSED CHECK

Next sequence is run if all of the following conditions are metCondition 1, 2, 3 and 4
1. Canister pressure when reference pressure measurement started1 kPa (gauge) (-7.5 mmHg (gauge) or less
2. Reference pressure4.75 to -0.957 kPa (gauge) (-35.62 to -7.18 mmHg (gauge)
3. Reference pressureSaturated
4. Reference pressure difference between the first and secondLess than 0.9 kPa (gauge) (6.75 mmHg (gauge)

6. SECOND REFERENCE PRESSURE MEASUREMENT

One of the sequence 8 or 9 is run if the following condition is met
Canister pressure when vacuum introduction for canister was completeSecond reference pressure or less

7. CANISTER LEAK CHECK

Sequence 14 is run if all of the following conditions are metConditions 1 and 2
1. Fuel tank pressure when EVAP monitor started2 kPa (gauge) (-15 mmHg (gauge) or less, or 3 kPa (gauge) (22.5 mmHg (gauge) or more
2. Fuel tank pressure change while TCV and vent valve are open0.5 kPa (gauge) (3.75 mmHg (gauge) or more

8. FUEL TANK CLOSED VALVE (TCV) STUCK CLOSED CHECK

Next sequence is run if both of the following conditions are metConditions 1 and 2
1. Fuel tank pressure when EVAP monitor started2 to 3 kPa (gauge) (-15 to 22.5 mmHg (gauge)
2. Vacuum introduction time15 minutes or less

9. VACUUM INTRODUCTION FOR FUEL TANK

Next sequence is run if the following condition is met
Fuel tank pressure change when vacuum introduction for fuel tank0.5 kPa (gauge) (3.75 mmHg (gauge) or more

10. TCV STUCK CLOSED CHECK

Next sequence is run if the following condition is met
Fuel tank pressure change when TCV closed0.35 kPa (gauge) (2.6 mmHg (gauge) or more

11. FUEL TANK PRESSURE SENSOR STUCK CHECK

Next sequence is run if all of the following conditions are metConditions 1, 2, 3, and 4
1. Fuel tank pressure when 1.9 seconds after reference pressure measurement began1 kPa (gauge) (-7.5 mmHg (gauge) or less
2. Reference pressure4.75 to -0.957 kPa (gauge) (-35.62 to -7.18 mmHg (gauge)
3. Reference pressureSaturated
4. Reference pressure difference between the second and thirdLess than 0.9 kPa (gauge) (6.75 mmHg (gauge)

12 THIRD REFERENCE PRESSURE MEASUREMENT

Sequence 15 is run if the following condition is met
Fuel tank pressure when vacuum introduction for fuel tank was completeLess than third reference pressure

13. FUEL TANK LEAK CHECK

Next sequence is run if the following condition is met
Fuel tank pressure change while TCV and vent valve are openLess than 0.35 kPa (gauge) (2.6 mmHg (gauge)

14. FUEL TANK PRESSURE SENSOR STUCK CHECK

Monitor is complete if the following condition is met
Atmospheric pressure difference between sequence 1 and 8Less than 0.3 kPa (gauge) (2.25 mmHg (gauge)

15. ATMOSPHERIC PRESSURE MEASUREMENT

Canister pressure change for 10 seconds after vent valve openedLess than 0.3 kPa (2.25 mmHg)

Refer to Checking Monitor Status, refer to CHECKING MONITOR STATUS .

Scheme 894

Scheme 894: CONFIRMATION DRIVING PATTERN

Note. The Evaporative System Check (Automatic Mode) consists of 5 steps performed automatically by the Techstream. It takes a maximum of approximately 18 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 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 below 35°C (95°F).

  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure), refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) .
  4. Turn the ignition switch off.
  5. Turn the ignition switch to ON and turn the Techstream on.
  6. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode [A].
  7. After the Evaporative System Check is completed, check for DTCs by entering the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
  8. Read the Pending DTC [B]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
  9. After the "Evaporative System Check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  10. Input the DTC: P2420.
  11. Check the DTC judgment result [B]. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [A] again.
  12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  13. Check the judgment result. HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
  14. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
Required Sensors/ComponentsCanister pump module
Frequency of OperationOnce per driving cycle
DurationWithin 15 minutes
MIL Operation2 driving cycles
Sequence of OperationNone
Monitor runs whenever these DTCs are not presentNone
EVAP key-off monitor runs when all of the following conditions are met
Atmospheric pressure70 to 111 kPa (525 to 833 mmHg)
Battery voltage10.5 V or more
Vehicle speedLess than 2.5 mph (4 km/h)
Ignition switchOff
Engine conditionNot running
Key-OFF duration5 or 7 or 9.5 hours
Pressure sensor of canister pump module malfunction (P0452 and P0453)Not detected
Fuel tank pressure sensor malfunction (P1452 and P1453)Not detected
Purge VSVNot operated by scan tool
Vent valveNot operated by scan tool
Leak detection pumpNot operated by scan tool
Both of the following conditions are met before Key-OFFConditions 1 and 2
1. Duration that vehicle is being driven5 minutes or more
2. Purge flowExecuted
Engine coolant temperature4.4 to 35°C (40 to 95°F)
Intake air temperature4.4 to 35°C (40 to 95°F)

Key-off monitor sequence 1 to 15

Next sequence is run if the following condition is met
Atmospheric pressure changeLess than 0.3 kPa (gauge) (2.25 mmHg (gauge) per second

1. ATMOSPHERIC PRESSURE MEASUREMENT

Next sequence is run if all of the following conditions are metCondition 1, 2 and 3
1. Canister pressure when reference pressure measurement started1 kPa (gauge) (-7.5 mmHg (gauge) or less
2. Reference pressure4.75 to -0.957 kPa (gauge) (-35.62 to -7.18 mmHg (gauge)
3. Reference pressureSaturated

2. FIRST REFERENCE PRESSURE MEASUREMENT

Next sequence is run if the following condition is met
Canister pressure change after vent valve ON (Closed)0.3 kPa (gauge) (2.25 mmHg (gauge) or more

3. VENT VALVE CLOSE STUCK CHECK

Next sequence is run if the both of the following conditions are metCondition 1 and 2
1. Vacuum introduction time15 minutes or less
2. Canister pressureSaturated

4. VACUUM INTRODUCTION FOR CANISTER

Next sequence is run if the following condition is met
Canister pressure change for 10 seconds after purge VSV ON (Open).0.3 kPa (gauge) (2.25 mmHg (gauge) or more

5. PURGE VSV STUCK CLOSED CHECK

Next sequence is run if all of the following conditions are metCondition 1, 2, 3 and 4
1. Canister pressure when reference pressure measurement started1 kPa (gauge) (-7.5 mmHg (gauge) or less
2. Reference pressure4.75 to -0.957 kPa (gauge) (-35.62 to -7.18 mmHg (gauge)
3. Reference pressureSaturated
4. Reference pressure difference between the first and secondLess than 0.9 kPa (gauge) (6.75 mmHg (gauge)

6. SECOND REFERENCE PRESSURE MEASUREMENT

One of the sequence 8 or 9 is run if the following condition is met
Canister pressure when vacuum introduction for canister was completeSecond reference pressure or less

7. CANISTER LEAK CHECK

Sequence 14 is run if all of the following conditions are metConditions 1 and 2
1. Fuel tank pressure when EVAP monitor started2 kPa (gauge) (-15 mmHg (gauge) or less, or 3 kPa (gauge) (22.5 mmHg (gauge) or more
2. Fuel tank pressure change while TCV and vent valve are open0.5 kPa (gauge) (3.75 mmHg (gauge) or more

8. FUEL TANK CLOSED VALVE (TCV) STUCK CLOSED CHECK

Next sequence is run if both of the following conditions are metConditions 1 and 2
1. Fuel tank pressure when EVAP monitor started2 to 3 kPa (gauge) (-15 to 22.5 mmHg (gauge)
2. Vacuum introduction time15 minutes or less

9. VACUUM INTRODUCTION FOR FUEL TANK

Next sequence is run if the following condition is met
Fuel tank pressure change when vacuum introduction for fuel tank0.5 kPa (gauge) (3.75 mmHg (gauge) or more

10. TCV STUCK CLOSED CHECK

Next sequence is run if the following condition is met
Fuel tank pressure change when TCV closed0.35 kPa (gauge) (2.6 mmHg (gauge) or more

11. FUEL TANK PRESSURE SENSOR STUCK CHECK

Next sequence is run if all of the following conditions are metConditions 1, 2, 3, and 4
1. Fuel tank pressure when 1.9 seconds after reference pressure measurement began1 kPa (gauge) (-7.5 mmHg (gauge) or less
2. Reference pressure4.75 to -0.957 kPa (gauge) (-35.62 to -7.18 mmHg (gauge)
3. Reference pressureSaturated
4. Reference pressure difference between the second and thirdLess than 0.9 kPa (gauge) (6.75 mmHg (gauge)

12 THIRD REFERENCE PRESSURE MEASUREMENT

Sequence 15 is run if the following condition is met
Fuel tank pressure when vacuum introduction for fuel tank was completeLess than third reference pressure

13. FUEL TANK LEAK CHECK

Next sequence is run if the following condition is met
Fuel tank pressure change while TCV and vent valve are openLess than 0.35 kPa (gauge) (2.6 mmHg (gauge)

14. FUEL TANK PRESSURE SENSOR STUCK CHECK

Monitor is complete if the following condition is met
Atmospheric pressure difference between sequence 1 and 8Less than 0.3 kPa (gauge) (2.25 mmHg (gauge)

15. ATMOSPHERIC PRESSURE MEASUREMENT

  1. P2450: Fuel vapor-containment valve stuck open One of the following conditions met (FTP is between -2 kPa and 3 kPa) Condition 1 or 2 1. FTP change when vacuum introduction for canister More than 0.5 kPa (3.75 mmHg) 2. Canister pressure when vacuum introduction for canister was complete Higher than reference pressure x 0.2
  2. P2451: Fuel vapor-containment valve stuck close One of the following conditions met (FTP is between -2 kPa and 3 kPa) Condition 1 or 2 1. When both conditions below are met Condition (a) or (b) (a) FTP -2 to 3 kPa (-15 to 22.5 mmHg) (b) FTP change when vacuum introduced for fuel tank Less than 0.5 kPa (3.75 mmHg) 2. When both conditions below are met Condition (a) or (b) (a) FTP -2 kPa (-15 mmHg) or less and 3 kPa (22.5 mmHg) or more (b) Canister pressure change when FVCV is open Less than 0.9 kPa (6.75 mmHg)

Refer to the Checking Monitor Status, refer to CHECKING MONITOR STATUS .

Note. The Evaporative System Check (Automatic Mode) consists of 9 steps performed automatically by the Techstream. It takes a maximum of approximately 18 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 run the engine during this operation. When the temperature of the fuel is 35°C (95°F) or more, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the fuel temperature below 35°C (95°F).

  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch ON and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the ignition switch off and wait for 30 seconds.
  5. Turn the ignition switch ON and turn the Techstream on.
  6. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode [A].
  7. After the Evaporative System Check is completed, check for DTCs by entering the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
  8. Read the Pending DTC [B]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
  9. Enter the following menus: Powertrain / Engine and ECT / Utility / All readiness.
  10. Input the DTC: P2450 or P2451.
  11. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [A] again.
  12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  13. Check the judgment result. HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
  14. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
Related DTCP2610: ECM internal engine off timer performance
Required Sensors / ComponentsECM
Frequency of OperationOnce per driving cycle
Duration10 minutes
MIL Operation2 driving cycles
Sequence of OperationNone
Monitor runs whenever following DTCs are not presentNone

ALL

Ignition switchON
EngineRunning
Battery voltage8 V or more
CPU clock elapsed time10 minutes or more

CASE 1

Internal engine off timer (elapsed time from engine stop)10 minutes or more
Battery voltage8 V or more
Ignition switchON

CASE 2

Internal engine off timer (elapsed time from engine stop)10 minutes or more
Battery voltage8 V or more
Ignition switchON

CASE 3

Internal engine off timer (elapsed time from engine start)Less than 7 minutes, or more than 13 minutes

CASE 1

ECM had the started record by internal engine off timerYes

CASE 2

ECM had the started record by internal engine off timerNo

CASE 3

Scheme 895

Scheme 895: CONFIRMATION DRIVING PATTERN
  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure), refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) .
  4. Turn the ignition switch off.
  5. Turn the ignition switch to ON and turn the Techstream on [A].
  6. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) .
  7. Start the engine.
  8. Idle the engine for 10 minutes or more.
  9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.
  10. Read the pending DTC [C]. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
  11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  12. Input the DTC: P2610.
  13. Check the DTC judgment result. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [B] again.
  14. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  15. Check the judgment result. HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
  16. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
  1. REPLACE ECM Replace the ECM, refer to «REMOVAL»(ref-426780-S20256408682011101200000) . NEXT: Go to next step
  2. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Start the engine and wait for 10 minutes or more. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. If no pending DTC is displayed, the repair has been successfully completed. NEXT --> END
Related DTCsP3190: Poor engine power P3191: Engine does not start
Required sensors / components (Main)Crankshaft position sensor
Required sensors / components (Related)Hybrid vehicle control ECU
Frequency of operationContinuous
Duration100 engine revolutions and 6 seconds
MIL operationImmediately
Sequence of operationNone
Monitor runs whenever following DTCs not presentNone
Fuel cut operationNot operated
Engine speed650 RPM or more (varies with engine coolant temperature)
Time for low engine torque100 engine revolutions or more, and 6 seconds or more (varies with engine coolant temperature)
Fuel levelNot empty

P3190

Engine start no-determination time (receive from hybrid vehicle control ECU)100 engine revolutions or more, and 6 seconds or more (varies with engine coolant temperature)
Fuel levelNot empty

P3191

Both of the following conditions are metCondition 1 and 2 (varies with engine coolant temperature)
1. Either of the following conditions is metCondition (a) or (b)
(a) Time for low engine torque100 engine revolutions or more, and 6 seconds or more (varies with engine coolant temperature)
(b) Engine start no-determination time (receive from power management control ECU)100 engine revolutions or more, and 6 seconds or more (varies with engine coolant temperature)
Fuel levelEmpty

P3193

  1. CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC P3190, P3191 AND/OR P3193) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. RESULT Result Proceed to DTC P3190, P3191 and/or P3193 are output A DTC P3190, P3191 and/or P3193, and other DTCs are output B HINT: If any other codes besides P3190, P3191 and/or P3193 are output, perform troubleshooting for those DTCs first. B --> See step 16 A: Go to next step
  2. CHECK SHORTAGE OF FUEL NG --> REFILL FUEL OK: Go to next step
  3. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks, refer to «ON-VEHICLE INSPECTION - Step 1»(ref-426782-S32913494442011101200000) . OK No leaks in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
  4. CHECK FOR UNUSUAL NOISE OR VIBRATION WHEN STARTING ENGINE OR REVVING UP OK Unusual noise and vibration do not occur. NG --> REPAIR OR REPLACE MALFUNCTIONING PART OK: Go to next step
  5. CHECK FUEL PRESSURE Check the fuel pressure, refer to «ON-VEHICLE INSPECTION - Step 2»(ref-426786-S07299980892011101200000) . NG --> See step 15 OK: Go to next step
  6. INSPECT FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT Trouble Codes / Freeze Frame Data. Calculate the requested torque* and compare it with Actual Engine Torque. HINT: *: The requested torque is calculated by putting "Requested Engine Torque" and "HV Target Engine Speed" from the freeze frame data into the following formula: Requested torque = Requested Engine Torque (kW) / HV Target Engine Speed (RPM) x 9554 Standard Actual Engine Torque is 60% or more of the requested torque. Result Result Proceed to NG A OK B B --> See step 8 A: Go to next step
  7. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY Inspect the throttle with motor body assembly, refer to «INSPECTION»(ref-426780-S27406188122011101200000) . NG --> See step 17 OK: Go to next step
  8. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY Inspect the mass air flow meter sub-assembly, refer to «INSPECTION»(ref-426780-S13144522352011101200000) . NG --> See step 18 OK: Go to next step
  9. INSPECT ENGINE COOLANT TEMPERATURE SENSOR Inspect the engine coolant temperature sensor, refer to «INSPECTION»(ref-426780-S28627701352011101200000) . NG --> See step 19 OK: Go to next step
  10. INSPECT CRANKSHAFT POSITION SENSOR Inspect the crankshaft position sensor, refer to «REMOVAL»(ref-426780-S05381036062011101200000) . NG --> See step 20 OK: Go to next step
  11. PERFORM TECHSTREAM (CONTROL THE EGR STEP POSITION) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more. HINT: The A/C switch and all accessory switches should be off. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position. Confirm the Throttle Idle Position is ON and check the engine idling condition and MAP values in the Data List while performing the Active Test. HINT: Do not leave the EGR valve open for 10 seconds or more during the Active Test. Be sure to return the EGR valve to step 0 when Active Test is completed. OK MAP and idling condition change in response to EGR step position as follows. Standard - EGR Step Position (Active Test) 0 Steps 0 to 30 Steps Idling condition Steady idling Idling changes from steady to rough idling or engine stall MAP (Data List) 20 to 40 kPa (150 to 300 mmHg) (EGR valve is fully closed) MAP value is at least +10 kPa (75 mmHg) higher than when EGR valve is fully closed HINT: During Active Test, if the idling condition does not change in response to EGR step position, then there is probably a malfunction in EGR valve. Result Result Proceed to Outside standard range A Within standard range B B --> See step 15 A: Go to next step
  12. INSPECT EGR VALVE ASSEMBLY Remove the EGR valve assembly, refer to «REMOVAL»(ref-426771-S16321691292011101200000) . Check if the EGR valve is stuck open. OK EGR valve is tightly closed. Reinstall the EGR valve assembly, refer to «INSTALLATION»(ref-426771-S21548001202011101200000) . NG --> REPLACE EGR VALVE ASSEMBLY OK: Go to next step
  13. REPLACE ECM Replace the ECM, refer to «REMOVAL»(ref-426780-S20256408682011101200000) . NEXT: Go to next step
  14. CONFIRM WHETHER DTC MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTC, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . Turn the ignition switch off. Turn the ignition switch to ON and turn the Techstream on. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Start the engine. Allow the engine to idle for 10 seconds or more. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P3190, P3191 or P3193. Check the DTC judgment result. NEXT --> END
  15. CHECK FUEL LINE Check the fuel lines for leaks or blockage. NG --> See step 21 OK --> REPAIR OR REPLACE FUEL LINE
  16. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-426655-S36857909882011101200000)
  17. REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY. Refer to «REMOVAL»(ref-426780-S24526827482011101200000)
  18. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL»(ref-426780-S31143574432011101200000)
  19. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-426780-S33883923852011101200000)
  20. REPLACE CRANKSHAFT POSITION SENSOR. Refer to «REMOVAL»(ref-426780-S29198761862011101200000)
  21. REPLACE FUEL PUMP. Refer to «REMOVAL»(ref-426781-S29046169732011101200000)
Related DTCsU0293: Lost communication with hybrid vehicle control ECU
Required Sensors/Components (Main)ECM
Frequency of OperationContinuous
Duration0.576 seconds
MIL OperationImmediately
Sequence of OperationNone
Battery Voltage10.5 V or more
Ignition switchON
Communication signalNo signal from hybrid vehicle control ECU

Scheme 896

Scheme 896: CONFIRMATION DRIVING PATTERN
  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure), refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) .
  4. Turn the ignition switch off.
  5. Turn the ignition switch to ON and turn the Techstream on [A].
  6. Wait 5 seconds or more.
  7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
  8. Read the DTC [B]. HINT: If a DTC is output, the system is malfunctioning. If a DTC is not output, perform the following procedure.
  9. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  10. Input the DTC: U0101.
  11. Check the DTC judgment result [B]. Techstream 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [A] again.
  12. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  13. Check the judgment result. HINT: If the judgment result shows NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
  14. If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 897

Scheme 897: WIRING DIAGRAM
DTC No.Monitoring Item
P043EReference orifice low flow
P043FReference orifice high flow
P0441Purge VSV stuck closed Purge VSV stuck open Insufficient purge flow
P1420Small or 0.02 inch leak from canister
P1421Gross leak from canister
P1422Small or 0.02 inch leak from fuel tank
P1423Gross leak from fuel tank
P2401Vacuum pump stuck OFF
P2402Vacuum pump stuck ON
P2419Vent valve stuck ON (closed)
P2420Vent valve stuck OFF (vent)
P2450Fuel vapor-containment valve stuck open
P2451Fuel vapor-containment valve stuck closed

Refer to Checking Monitor Status, refer to CHECKING MONITOR STATUS .

  1. KEY-OFF MONITOR DRIVE PATTERN Connect the Techstream to the DLC3. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Confirm the following conditions are satisfied: The fuel level is less than 90%. The altitude is less than 7874 ft. (2400 m). The vehicle is stopped (the vehicle speed is 0 mph (0 km/h). The engine coolant temperature is 4.4 to 35°C (40 to 95°F) The intake air temperature is 4.4 to 35°C (40 to 95°F) Perform the following drive pattern: Allow the engine to idle for 5 minutes or more. Turn the ignition switch off and wait 5, 7, 9.5 hours. Check the monitor status with the Techstream.
  2. PURGE FLOW MONITOR DRIVE PATTERN (P0441) Connect the Techstream to the DLC3. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Confirm that the following conditions are satisfied: The engine coolant temperature is more than 4.4°C (40°F). The intake air temperature is more than 4.4°C (40°F). Perform the following drive pattern: Remove and reinstall the fuel cap to release the fuel tank pressure. Warm the engine until the engine coolant temperature reaches 75°C (167°F) or more. Run the engine at 2500 RPM once. Check the monitor status with the Techstream.