Engine Control (Diagnostic Codes (P011B-P0339): Other Lexus RX III

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

Scheme 246

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) 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-400784-S02158227972011051800000) [A].
4. Turn the engine switch off.
5. With the engine stopped, leave the vehicle as is for 7.5 hours or more [B].
6. Start the engine and wait 60 seconds or more [C].
7. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
8. Input the DTC: P011B.
9. Check the DTC judgment result [D]. 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 ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [A] through [D] again.
10. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
11. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
12. 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-400784-S02158227972011051800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

PROCEDURE

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO P011B) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P011B is output A DTC P011B and other DTCs are output B HINT: If any DTCs other than P011B are output, troubleshoot those DTCs first. B --> See step 4 A: Go to next step
2. READ VALUE USING TECHSTREAM (INTAKE AIR) Leave the vehicle for 7 hours or more. HINT: It is necessary to leave the vehicle for 7 hours or more to allow conditions similar to the DTC detection conditions. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Intake Air. Read the value displayed on the Techstream. OK Difference between the intake air temperature and the actual outside air temperature is within 10°C (18°F). HINT: Intake air temperature readings on the vehicle outside temperature gauge (if equipped) are not suitable for comparing to the intake air temperature reading. The outside temperature gauge has a significant delay built in to prevent temperature swings from being displayed on its display. Use an accurate thermometer to determine the outside air temperature. NG --> See step 5 OK: Go to next step
3. READ VALUE USING TECHSTREAM (COOLANT TEMP) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Coolant Temp. Read the value displayed on the Techstream. OK Difference between the coolant temperature and the actual outside air temperature is within 10°C (18°F). HINT: If the result is not as specified, check if there are heat sources such as a block heater in the engine compartment. NG --> See step 7 OK --> See step 6
4. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-400784-S30709964352011051800000)
5. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL»(ref-400788-S09138879022011051800000)
6. REPLACE ECM. Refer to «REMOVAL»(ref-400788-S10545316742011051800000)
7. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-400788-S32944046982011051800000)

P0120, P0122, P0123, P0220, P0222, P0223, P02135

P0121

P0120

P0121

P0122

P0123

P0220

P0222

P0223

P2135 CASE 1

P2135 CASE 2

COMPONENT OPERATING RANGE

Scheme 247

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) 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-400784-S05337578742011051800000) .
4. Turn the engine switch off.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine.
7. With the vehicle stationary, fully depress and release the accelerator pedal [B].
8. Idle the engine for 2 seconds or more [C].
9. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
10. Input the DTC: P0120, P0121, P0122, P0123, P0220, P0222, P0223 or P2135.
11. Check the DTC judgment result [D]. 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 ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] and [D] again.
12. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
13. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
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-400784-S05337578742011051800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

FAIL-SAFE

When any of these DTCs, as well as other DTCs relating to electronic throttle control system malfunctions are set, 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 engine switch is then turned off.

Scheme 248

P0120, P0122, P0123, P0220, P0222, P0223, P02135

P0121

P0120

P0121

P0122

P0123

P0220

P0222

P0223

P2135 CASE 1

P2135 CASE 2

CONFIRMATION DRIVING PATTERN

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) 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-400784-S02158227972011051800000) .
4. Turn the engine switch off.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine.
7. With the vehicle stationary, fully depress and release the accelerator pedal [B].
8. Idle the engine for 2 seconds or more [C].
9. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
10. Input the DTC: P0120, P0121, P0122, P0123, P0220, P0222, P0223 or P2135.
11. Check the DTC judgment result [D]. 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 ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] and [D] again.
12. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
13. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
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-400784-S02158227972011051800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

When any of these DTCs, as well as other DTCs relating to electronic throttle control system malfunctions are set, 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 engine switch is then turned off.

1. READ VALUE USING TECHSTREAM (THROTTLE POSITION SENSOR) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / ETCS / Throttle Position No. 1 and Throttle Position No. 2. Read the values displayed on the Techstream. RESULT When Accelerator Pedal Released When Accelerator Pedal Depressed Trouble Area Proceed to Throttle Position No. 1 Throttle Position No. 2 Throttle Position No. 1 Throttle Position No. 2 0 to 0.2 V 0 to 0.2 V 0 to 0.2 V 0 to 0.2 V VC circuit open A 4.5 to 5.0 V 4.5 to 5.0 V 4.5 to 5.0 V 4.5 to 5.0 V E2 circuit open 0 to 0.2 V, or 4.5 to 5.0 V 2.1 V to 3.1 V (Fail-safe) 0 to 0.2 V, or 4.5 to 5.0 V 2.1 V to 3.1 V (Fail-safe) VTA1 circuit open or ground short 0.6 V to 1.4 V (Fail-safe) 0 to 0.2 V, or 4.5 to 5.0 V 0.6 V to 1.4 V (Fail-safe) 0 to 0.2 V, or 4.5 to 5.0 V VTA2 circuit open or ground short 0.5 to 1.1 V 2.1 to 3.1 V 3.2 to 4.8 V (Not fail-safe) 4.6 to 5.0 V (Not fail-safe) Throttle position sensor circuit normal B HINT: DTC P0121 is stored when the voltages output from VTA1 and VTA2 are not consistent with the characteristics of the sensors. Therefore, check the Freeze Frame Data when this DTC is output. Use the following formula to confirm relative fluctuations in voltage. Features of sensor output VTA2 x 0.8 is approximately equal to VTA1 + 1.11 V VTA1: Throttle Position No. 1 VTA2: Throttle position No. 2 If DTC P0121 is output, proceed ti the "CHECK HARNESS AND CONNECTOR (THROTTLE POSITION SENSOR - ECM)". B --> See step 5 A: Go to next step
2. CHECK HARNESS AND CONNECTOR (THROTTLE POSITION SENSOR - ECM) Disconnect the throttle with motor body assembly connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition D28-5 (VC) - D1-80 (VCTA) Always Below 1 ohms D28-6 (VTA) - D1-78 (VTA1) Always Below 1 ohms D28-4 (VTA2) - D1-77 (VTA2) Always Below 1 ohms D28-3 (E2) - D1-79 (ETA) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition D28-5 (VC) or D1-80 (VCTA) - Body ground Always 10 kohms or higher D28-6 (VTA) or D1-78 (VTA1) - Body ground Always 10 kohms or higher D28-4 (VTA2) or D1-77 (VTA2) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Throttle Position Sensor) *2 Front view of wire harness connector (to ECM) Reconnect the ECM connector. Reconnect the throttle with motor body assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (THROTTLE POSITION SENSOR - ECM) OK: Go to next step
3. INSPECT ECM (VC VOLTAGE) Disconnect the throttle with motor body assembly connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition D28-5 (VC) - D28-3 (E2) Engine switch on (IG) 4.5 to 5.5 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Throttle Position Sensor) Reconnect the throttle with motor body assembly connector. NG --> See step 6 OK: Go to next step
4. REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY Replace the throttle with motor body assembly. Refer to «REMOVAL»(ref-400788-S13675110742011051800000) . NEXT: Go to next step
5. CHECK WHETHER DTC OUTPUT RECURS (THROTTLE POSITION SENSOR DTCS) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400784-S02158227972011051800000) . Start the engine. Allow the engine to idle for 15 seconds or more. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0120, P0121, P0122, P0123, P0220, P0222, P0223, and/or P2135 are output A DTC is not output B B --> END A --> See step 6
6. REPLACE ECM. Refer to «REMOVAL»(ref-400788-S10545316742011051800000)

Scheme 249

1. Leave the vehicle outside overnight.
2. Connect the Techstream to the DLC3.
3. Turn the engine switch on (IG) and turn the Techstream on.
4. Enter the following menus: Powertrain / Engine / Data List / Coolant Temp.
5. Check that the engine coolant temperature is 5°C (41°F) or less.
6. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-400784-S05337578742011051800000) .
7. Turn the engine switch off.
8. Turn the engine switch on (IG) and turn the Techstream on [A].
9. Start the engine.
10. After starting the engine, wait 21 minutes or more [B].
11. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
12. Input the DTC: P0125.
13. Check the DTC judgment result [C]. 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 ABNORMAL, the system has a malfunction.
14. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
15. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
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-400784-S05337578742011051800000) . 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 DTC P0125) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0125 is output A DTC P0125 and other DTCs are output B HINT: If any DTCs other than P0125 are output, troubleshoot those DTCs first. B --> See step 4 A: Go to next step
2. INSPECT THERMOSTAT Remove the thermostat. Refer to «REMOVAL»(ref-400800-S09166125122011051800000) . Check the valve opening temperature of the thermostat. Standard 80 to 84°C (176 to 183°F) HINT: In addition to the above check, confirm that the valve is completely closed when the temperature is below the standard. Reinstall the thermostat. Refer to «INSTALLATION»(ref-400800-S12452066372011051800000) . NG --> See step 5 OK: Go to next step
3. CHECK COOLING SYSTEM Check for defects in the cooling system that might cause the system to be too cold, such as abnormal radiator fan operation or any modifications. NG --> REPAIR OR REPLACE COOLING SYSTEM OK --> See step 6
4. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-400784-S08158320572011051800000)
5. REPLACE THERMOSTAT. Refer to «REMOVAL»(ref-400800-S09166125122011051800000)
6. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-400788-S05975438782011051800000)

1. Leave the vehicle outside overnight.
2. Connect the Techstream to the DLC3.
3. Turn the engine switch on (IG) and turn the Techstream on.
4. Enter the following menus: Powertrain / Engine / Data List / Coolant Temp.
5. Check that the engine coolant temperature is 5°C (41°F) or less.
6. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-400784-S02158227972011051800000) .
7. Turn the engine switch off.
8. Turn the engine switch on (IG) and turn the Techstream on [A].
9. Start the engine.
10. After starting the engine, wait 21 minutes or more [B].
11. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
12. Input the DTC: P0125.
13. Check the DTC judgment result [C]. 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 ABNORMAL, the system has a malfunction.
14. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
15. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
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-400784-S02158227972011051800000) . 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 DTC P0125) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0125 is output A DTC P0125 and other DTCs are output B HINT: If any DTCs other than P0125 are output, troubleshoot those DTCs first. B --> See step 4 A: Go to next step
2. INSPECT THERMOSTAT Remove the thermostat. Refer to «REMOVAL»(ref-400800-S31500552762011051800000) . Check the valve opening temperature of the thermostat. Standard 80 to 84°C (176 to 183°F) HINT: In addition to the above check, confirm that the valve is completely closed when the temperature is below the standard. Reinstall the thermostat. Refer to «INSTALLATION»(ref-400800-S09603818532011051800000) . NG --> See step 5 OK: Go to next step
3. CHECK COOLING SYSTEM Check for defects in the cooling system that might cause the system to be too cold, such as abnormal radiator fan operation or any modifications. NG --> REPAIR OR REPLACE COOLING SYSTEM OK --> See step 6
4. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-400784-S30709964352011051800000)
5. REPLACE THERMOSTAT. Refer to «REMOVAL»(ref-400800-S31500552762011051800000)
6. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-400788-S32944046982011051800000)

Scheme 250

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) 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-400784-S05337578742011051800000) .
4. Turn the engine switch off.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Enter the following menus: Powertrain / Engine / Data List / All Data / Coolant Temp and Intake Air.
7. Check that "Coolant Temp" and "Intake Air" in the Data List are within the range of -10 to 56°C (14 to 133°F).
8. Start the engine and wait 15 minutes or more [B].
9. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
10. Input the DTC: P0128.
11. Check the DTC judgment result [C]. 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 ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] and [C].
12. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
13. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
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-400784-S05337578742011051800000) . 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 DTC P0128) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0128 is output A DTC P0128 and other DTCs are output B HINT: If any DTCs other than P0128 are output, troubleshoot those DTCs first. B --> See step 5 A: Go to next step
2. CHECK COOLING SYSTEM Check for defects in the cooling system that might cause the system to be too cold, such as abnormal radiator fan operation or any modifications. NG --> REPAIR OR REPLACE COOLING SYSTEM OK: Go to next step
3. INSPECT THERMOSTAT Remove the thermostat. Refer to «REMOVAL»(ref-400800-S09166125122011051800000) . Check the valve opening temperature of the thermostat. Refer to «INSPECTION»(ref-400800-S04327519892011051800000) . Standard 80 to 84°C (176 to 183°F) HINT: In addition to the above check, confirm that the valve is completely closed when the temperature is below the standard. Reinstall the thermostat. Refer to «INSTALLATION»(ref-400800-S12452066372011051800000) . NG --> See step 6 OK --> See step 4
4. REPLACE ECM. Refer to «REMOVAL»(ref-400788-S26250166532011051800000)
5. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-400784-S08158320572011051800000)
6. REPLACE THERMOSTAT. Refer to «REMOVAL»(ref-400800-S09166125122011051800000)

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) 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-400784-S02158227972011051800000) .
4. Turn the engine switch off.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Enter the following menus: Powertrain / Engine / Data List / All Data / Coolant Temp and Intake Air.
7. Check that "Coolant Temp" and "Intake Air" in the Data List are within the range of -10 to 56°C (14 to 133°F).
8. Start the engine and wait 15 minutes or more [B].
9. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
10. Input the DTC: P0128.
11. Check the DTC judgment result [C]. 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 ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] and [C].
12. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
13. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
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-400784-S02158227972011051800000) . 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 DTC P0128) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0128 is output A DTC P0128 and other DTCs are output B HINT: If any DTCs other than P0128 are output, troubleshoot those DTCs first. B --> See step 5 A: Go to next step
2. CHECK COOLING SYSTEM Check for defects in the cooling system that might cause the system to be too cold, such as abnormal radiator fan operation or any modifications. NG --> REPAIR OR REPLACE COOLING SYSTEM OK: Go to next step
3. INSPECT THERMOSTAT Remove the thermostat. Refer to «REMOVAL»(ref-400800-S31500552762011051800000) . Check the valve opening temperature of the thermostat. Refer to «INSPECTION»(ref-400800-S04327519892011051800000) . Standard 80 to 84°C (176 to 183°F) HINT: In addition to the above check, confirm that the valve is completely closed when the temperature is below the standard. Reinstall the thermostat. Refer to «INSTALLATION»(ref-400800-S09603818532011051800000) . NG --> See step 6 OK --> See step 4
4. REPLACE ECM. Refer to «REMOVAL»(ref-400788-S10545316742011051800000)
5. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-400784-S30709964352011051800000)
6. REPLACE THERMOSTAT. Refer to «REMOVAL»(ref-400800-S31500552762011051800000)

All

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (OUTPUT VOLTAGE, HIGH VOLTAGE AND LOW VOLTAGE)

HEATED OXYGEN SENSOR IMPEDANCE (LOW)

HEATED OXYGEN SENSOR IMPEDANCE (HIGH)

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (EXTREMELY HIGH)

HEATED OXYGEN SENSOR VOLTAGE DURING FUEL CUT

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (OUTPUT VOLTAGE)

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (LOW OUTPUT VOLTAGE)

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (HIGH OUTPUT VOLTAGE)

HEATED OXYGEN SENSOR IMPEDANCE (LOW)

HEATED OXYGEN SENSOR IMPEDANCE (HIGH)

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (EXTREMELY HIGH)

HEATED OXYGEN SENSOR VOLTAGE DURING FUEL CUT

P0136, P0137, P0138, P0156, P0157 and P0158

Scheme 251

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream to on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-400784-S05337578742011051800000) .
4. Turn the engine switch off.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
7. With the transmission in 4th gear or more, drive the vehicle at 40 to 75 mph (60 to 120 km/h) for 10 minutes or more [C].
8. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
9. Input the DTC: P0136, P0137, P0138, P0156, P0157, or P0158.
10. Check the DTC judgment result [D]. 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 WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [C] and [D].
11. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
12. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
13. 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-400784-S05337578742011051800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

P0139 and P0159

Scheme 252

1. Clear the DTCs (even if no DTCs are stored, perform the clear the DTC operation). Refer to «DTC CHECK / CLEAR»(ref-400784-S05337578742011051800000) .
2. Turn the engine switch off.
3. Turn the engine switch on (IG) and turn the Techstream on [A].
4. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more [B].
5. Drive the vehicle at 40 mph (60 km/h), and then decelerate the vehicle by releasing the accelerator pedal for 7 seconds or more to perform the fuel cut [C].
6. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
7. Input the DTC: P0139, or P0159.
8. Check the DTC judgment result [D]. 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 WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, move the shift lever to 2nd and then perform steps [C] through [D] again.
9. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
10. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
11. 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-400784-S05337578742011051800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

MONITOR RESULT

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

Scheme 253

All

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (OUTPUT VOLTAGE, HIGH VOLTAGE AND LOW VOLTAGE)

HEATED OXYGEN SENSOR IMPEDANCE (LOW)

HEATED OXYGEN SENSOR IMPEDANCE (HIGH)

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (EXTREMELY HIGH)

HEATED OXYGEN SENSOR VOLTAGE DURING FUEL CUT

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (OUTPUT VOLTAGE)

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (LOW OUTPUT VOLTAGE)

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (HIGH OUTPUT VOLTAGE)

HEATED OXYGEN SENSOR IMPEDANCE (LOW)

HEATED OXYGEN SENSOR IMPEDANCE (HIGH)

HEATED OXYGEN SENSOR OUTPUT VOLTAGE (EXTREMELY HIGH)

HEATED OXYGEN SENSOR VOLTAGE DURING FUEL CUT

P0136, P0137, P0138, P0156, P0157 and P0158

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream to on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-400784-S02158227972011051800000) .
4. Turn the engine switch off.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
7. With the transmission in 4th gear or more, drive the vehicle at 40 to 75 mph (60 to 120 km/h) for 10 minutes or more [C].
8. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
9. Input the DTC: P0136, P0137, P0138, P0156, P0157, or P0158.
10. Check the DTC judgment result [D]. 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 WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [C] and [D].
11. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
12. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
13. 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-400784-S02158227972011051800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

P0139 and P0159

1. Clear the DTCs (even if no DTCs are stored, perform the clear the DTC operation). Refer to «DTC CHECK / CLEAR»(ref-400784-S02158227972011051800000) .
2. Turn the engine switch off.
3. Turn the engine switch on (IG) and turn the Techstream on [A].
4. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more [B].
5. Drive the vehicle at 40 mph (60 km/h), and then decelerate the vehicle by releasing the accelerator pedal for 7 seconds or more to perform the fuel cut [C].
6. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
7. Input the DTC: P0139, or P0159.
8. Check the DTC judgment result [D]. 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 WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, move the shift lever to 2nd and then perform steps [C] through [D] again.
9. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
10. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
11. 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-400784-S02158227972011051800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

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

1. READ DTC OUTPUT (DTC P0136, P0137, P0138, P0139, P0156, P0157, P0158 OR P0159) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0138 or P0158 is output A DTC P0137 or P0157 is output B DTC P0136 or P0156 is output C DTC P0139 or P0159 is output D D --> See step 18 C --> See step 7 B --> See step 9 A: Go to next step
2. READ VALUE USING TECHSTREAM (OUTPUT VOLTAGE OF HEATED OXYGEN SENSOR) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / A/F Control System / O2S B1S2 or O2S B2S2. Allow the engine to idle. Read the heated oxygen sensor output voltage while idling. Result Result Proceed to 1.0 V or more A Less than 1.0 V B B --> See step 5 A: Go to next step
3. INSPECT HEATED OXYGEN SENSOR (CHECK FOR SHORT) Disconnect the heated oxygen sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 (+B) - 3 (E2) Always 10 kohms or higher 1 (+B) - 4 (OX1B) Always 10 kohms or higher 2 (+B) - 4 (E2) Always 10 kohms or higher 2 (+B) - 3 (OX2B) Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Heated Oxygen Sensor) *2 Bank 1 *3 Bank 2 Reconnect the heated oxygen sensor connector. NG --> See step 22 OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT) Turn the engine switch off and wait for 5 minutes. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Short) Tester Connection Condition Specified Condition D1-45 (HT1B) - D1-114 (OX1B) Always 10 kohms or higher D1-44 (HT2B) - D1-112 (OX2B) Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to ECM) Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (HEATED OXYGEN SENSOR - ECM) OK --> See step 23
5. PERFORM ACTIVE TEST USING TECHSTREAM (INJECTION VOLUME) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor. Change the fuel injection volume using the Techstream, and monitoring the voltage output of air fuel ratio and heated oxygen sensors displayed on the Techstream. HINT: Change the fuel injection volume within the range of -12% and +12%. The injection volume can be changed in 1% graduations within the range. The air fuel ratio sensor is displayed as AFS Voltage B1S1 or AFS Voltage B2S1, and the heated oxygen sensor is displayed as O2S B1S2 or O2S B2S2, on the Techstream. Result Techstream Display (Sensor) Voltage Variation Proceed to AFS Voltage B1S1 (Air fuel ratio) AFS Voltage B2S1 (Air fuel ratio) Alternates between more and less than 3.3 V OK AFS Voltage B1S1 (Air fuel ratio) AFS Voltage B2S1 (Air fuel ratio) Remains at more than 3.3 V NG AFS Voltage B1S1 (Air fuel ratio) AFS Voltage B2S1 (Air fuel ratio) Remains at less than 3.3 V NG HINT: A normal heated oxygen sensor voltage (O2S B1S2 or O2S B2S2) reacts in accordance with increases and decreases in fuel injection volumes. When the air fuel ratio sensor voltage remains at either less or more than 3.3 V despite the heated oxygen sensor indicating a normal reaction, the air fuel ratio sensor is malfunctioning. NG --> See step 15 OK: Go to next step
6. CHECK AIR FUEL RATIO SENSOR HINT: This air fuel ratio sensor test is to check the air fuel ratio sensor current during the fuel-cut. When the sensor is normal, the sensor current will indicate below 3.0 mA in this test. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Drive the vehicle by the drive pattern as listed below: Warm up the engine until the engine coolant temperature reaches 75°C (167°F) or more. Drive the vehicle at 38 mph (60 km/h) or more and decelerate the vehicle for 5 seconds or more. Repeat the deceleration above at least 3 times. Enter the following menus: Powertrain / Engine / Monitor / O2 Sensor / Details. Confirm that RANGE B1S1and RANGE B2S1 are either Pass or Fail. If the Techstream shows Incomplete, re-check RANGE B1S1 and RANGE B2S1 after performing the drive pattern. Select the RANGE B1S1 and RANGE B2S1. Read the Test Value. Standard Current Less than 3.0 mA HINT: If the Techstream shown Incomplete again, add the vehicle speed and use the second gear to decelerate the vehicle. NG --> See step 15 OK --> See step 12
7. READ VALUE USING TECHSTREAM (O2S B1S2 OR O2S B2S2) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Start the engine. Enter the following menus: Powertrain / Engine / Data List / A/F Control System / O2S B1S2 or O2S B2S2. After warming up the engine, run the engine at an engine speed of 2500 rpm for 3 minutes. Read the output voltage of the heated oxygen sensor when the engine speed is suddenly increased. HINT: Quickly accelerate the engine to 4000 rpm 3 times using the accelerator pedal. Standard Fluctuates between 0.4 V or less and 0.55 V or more. NG --> See step 9 OK: Go to next step
8. PERFORM ACTIVE TEST USING TECHSTREAM (INJECTION VOLUME) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor. Change the fuel injection volume using the Techstream, and monitoring the voltage output of air fuel ratio and heated oxygen sensors displayed on the Techstream. HINT: Change the fuel injection volume within the range of -12% and +12%. The injection volume can be changed in 1% graduations within the range. The air fuel ratio sensor is displayed as AFS Voltage B1S1 or AFS Voltage B2S1, and the heated oxygen sensor is displayed as O2S B1S2 or O2S B2S2, on the Techstream. Result Techstream Display (Sensor) Voltage Variation Proceed to AFS Voltage B1S1 (Air fuel ratio) AFS Voltage B2S1 (Air fuel ratio) Alternates between more and less than 3.3 V OK AFS Voltage B1S1 (Air fuel ratio) AFS Voltage B2S1 (Air fuel ratio) Remains at more than 3.3 V NG AFS Voltage B1S1 (Air fuel ratio) AFS Voltage B2S1 (Air fuel ratio) Remains at less than 3.3 V NG HINT: A normal heated oxygen sensor voltage (O2S B1S2 or O2S B2S2) reacts in accordance with increases and decreases in fuel injection volumes. When the air fuel ratio sensor voltage remains at either less or more than 3.3 V despite the heated oxygen sensor indicating a normal reaction, the air fuel ratio sensor is malfunctioning. NG --> See step 15 OK --> See step 24
9. INSPECT FOR EXHAUST GAS LEAK Inspect for exhaust gas leaks from the exhaust manifold sub-assembly and exhaust pipes. OK No gas leaks. NG --> REPAIR OR REPLACE EXHAUST GAS LEAK POINT OK: Go to next step
10. INSPECT HEATED OXYGEN SENSOR (HEATER RESISTANCE) Disconnect the heated oxygen sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2 (HT1B) - 1 (+B) 20°C (68°F) 11 to 16 ohms 2 (HT1B) - 3 (E2) Always 10 kohms or higher 1 (HT2B) - 2 (+B) 20°C (68°F) 11 to 16 ohms 1 (HT2B) - 4 (E2) Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Heated Oxygen Sensor) *2 Bank 1 *3 Bank 2 Reconnect the heated oxygen sensor connector. NG --> See step 25 OK: Go to next step
11. CHECK HARNESS AND CONNECTOR (HEATED OXYGEN SENSOR - ECM) Disconnect the heated oxygen sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition S1-2 (HT1B) - D1-45 (HT1B) Always Below 1 ohms S1-4 (OX1B) - D1-114 (OX1B) Always Below 1 ohms S1-3 (E2) - D1-115 (EX1B) Always Below 1 ohms D36-1 (HT2B) - D1-44 (HT2B) Always Below 1 ohms D36-3 (OX2B) - D1-112 (OX2B) Always Below 1 ohms D36-4 (E2) - D1-113 (EX2B) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition S1-2 (HT1B) or D1-45 (HT1B) - Body ground Always 10 kohms or higher S1-4 (OX1B) or D1-114 (OX1B) - Body ground Always 10 kohms or higher D36-1 (HT2B) or D1-44 (HT2B) - Body ground Always 10 kohms or higher D36-3 (OX2B) or D1-112 (OX2B) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Heated Oxygen Sensor) *2 Front view of wire harness connector (to ECM) *3 Bank 1 *4 Bank 2 Reconnect the heated oxygen sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (HEATED OXYGEN SENSOR - ECM) OK: Go to next step
12. REPLACE HEATED OXYGEN SENSOR Replace the heated oxygen sensor. Refer to «REMOVAL»(ref-400788-S31639486202011051800000) . NEXT: Go to next step
13. PERFORM CONFIRMATION DRIVING PATTERN Refer to «CONFIRMATION DRIVING PATTERN»(ref-400797-S39230584912011051800000) the confirmation driving pattern for P0136, P0137, P0138, P0156, P0157 and P0158. NEXT: Go to next step
14. CHECK WHETHER DTC OUTPUT RECURS (DTC P0136, P0137, P0138, P0156, P0157 OR P0158) Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Utility / All Readiness. Input DTC: P0136, P0137, P0138, P0156, P0157 or P0158. Check the DTC Monitor is NORMAL. If DTC Monitor is INCOMPLETE, perform the driving pattern adding the vehicle speed. Result Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P0136, P00137, P0138, P0156, P0157 or P0158 is output) B B --> See step 26 A --> END
15. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-400788-S35731488742011051800000) . NEXT: Go to next step
16. PERFORM CONFIRMATION DRIVING PATTERN Refer to «CONFIRMATION DRIVING PATTERN»(ref-400797-S39230584912011051800000) the confirmation driving pattern for P0136, P0137, P0138, P0156, P0157 and P0158. NEXT: Go to next step
17. CHECK WHETHER DTC OUTPUT RECURS (DTC P0136, P0138, P0158 OR P0158) Connect the Techstream to the DLC3. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Utility / All Readiness. Input DTC: P0136, P0138, P0156 or P0158. Check the DTC judgment result. Result Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P0136, P0138, P0156 or P0158 is output) B B --> See step 25 A --> END
18. READ VALUE USING TECHSTREAM (OUTPUT VOLTAGE OF HEATED OXYGEN SENSOR) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / A/F Control System / O2S B1S2 or O2S B2S2. Allow the engine to idle. Read the heated oxygen sensor output voltage while idling. Result Result Proceed to 1.0 V or more A Less than 1.0 V B B --> See step 21 A: Go to next step
19. INSPECT HEATED OXYGEN SENSOR (CHECK FOR SHORT) Disconnect the heated oxygen sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 (+B) - 3 (E2) Always 10 kohms or higher 1 (+B) - 4 (OX1B) Always 10 kohms or higher 2 (+B) - 4 (E2) Always 10 kohms or higher 2 (+B) - 3 (OX2B) Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Heated Oxygen Sensor) *2 Bank 1 *3 Bank 2 Reconnect the heated oxygen sensor connector. NG --> See step 25 OK: Go to next step
20. CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT) Turn the engine switch off and wait for 5 minutes. Disconnect the ECM connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Short) Tester Connection Condition Specified Condition D1-45 (HT1B) - D1-114 (OX1B) Always 10 kohms or higher D1-44 (HT2B) - D1-112 (OX2B) Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to ECM) Reconnect the ECM connectors. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (HEATED OXYGEN SENSOR - ECM) OK --> See step 23
21. READ DTC OUTPUT (DTC P0139 OR P0159 IS OUTPUT AGAIN) Connect the Techstream to the DLC3. Clear the DTCs. Start the engine. [A] Warm up the engine until the engine coolant temperature reaches 75°C (167°F) or more. [B] Drive the vehicle 38 mph (60 km/h) and decelerate the vehicle for 7 seconds or more. [C] Turn the Techstream ON. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. [D] Input DTCs: P0139 or P0159. Check the DTC monitor is NORMAL. If DTC monitor is INCOMPLETE, perform the drive pattern adding the vehicle speed and using the second gear to decelerate the vehicle. Result Result Proceed to ABNORMAL (DTC P0139 and/or P0159 are output) A NORMAL (DTC is not output) B B --> See step 27 A --> See step 25
22. REPLACE HEATED OXYGEN SENSOR. Refer to «REMOVAL»(ref-400788-S31639486202011051800000)
23. REPLACE ECM. Refer to «REMOVAL»(ref-400788-S10545316742011051800000)
24. CHECK AND REPLACE EXTREMELY RICH OR LEAN ACTUAL AIR FUEL RATIO (FUEL INJECTOR, FUEL PRESSURE, GAS LEAK FROM SYSTEM, ETC.). Refer to «DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1); DTC P0174: System Too Lean (Bank 2); DTC P0175: System Too Rich (Bank 2)»(ref-400797-S18858634752011051800000)
25. REPLACE HEATED OXYGEN SENSOR. Refer to «REMOVAL»(ref-400788-S31639486202011051800000)
26. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-400788-S35731488742011051800000)
27. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-400784-S22487773382011051800000)

FUEL TRIM

FUEL TRIM

Scheme 254

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) 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-400784-S05337578742011051800000) .
4. Turn the engine switch off.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine and warm it up (until the engine coolant temperature is 75°C (167°F) or more) with all the accessories switched off [B].
7. With the engine warmed up, idle the engine for 2 minutes or more [C].
8. Drive the vehicle at between 38 mph and 75 mph (60 km/h and 120 km/h) and at an engine speed of between 1400 rpm and 3200 rpm for 5 minutes or more [D].
9. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
10. Input the DTC: P0171, P0172, P0174 or P0175.
11. Check the DTC judgment result [E]. 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 WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [C] through [E] again.
12. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
13. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
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-400784-S05337578742011051800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

FUEL TRIM

FUEL TRIM

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) 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-400784-S02158227972011051800000) .
4. Turn the engine switch off.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine and warm it up (until the engine coolant temperature is 75°C (167°F) or more) with all the accessories switched off [B].
7. With the engine warmed up, idle the engine for 2 minutes or more [C].
8. Drive the vehicle at between 38 mph and 75 mph (60 km/h and 120 km/h) and at an engine speed of between 1400 rpm and 3200 rpm for 5 minutes or more [D].
9. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
10. Input the DTC: P0171, P0172, P0174 or P0175.
11. Check the DTC judgment result [E]. 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 WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [C] through [E] again.
12. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
13. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
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-400784-S02158227972011051800000) . 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 DTC P0171, P0172, P0174 OR P0175) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0171, P0172, P0174 and/or P0175 are output A DTC P0171, P0172, P0174 or P0175 and other DTCs are output B HINT: If any DTCs other than P0171, P0172, P0174 or P0175 are output, troubleshoot those DTCs first. B --> See step 20 A: Go to next step
2. CHECK PCV HOSE (HOSE CONNECTIONS) Check the PCV hose connections. Refer to «ON-VEHICLE INSPECTION»(ref-400794-S35833604912011051800000) . OK PCV hose is connected correctly and is not damaged. NG --> REPAIR OR REPLACE PCV HOSE OK: Go to next step
3. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks. Refer to «ON-VEHICLE INSPECTION»(ref-400792-S33062746192011051800000) . OK No leaks in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
4. PERFORM ACTIVE TEST USING TECHSTREAM (AIR FUEL RATIO CONTROL) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine at an engine speed of 2500 rpm for approximately 90 seconds. Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor. Perform the Active Test operation with the engine idling (press the RIGHT or LEFT button to change the fuel injection volume). 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: The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by 12.5% or increases the injection volume by 25%. Each sensor reacts in accordance with increases and decreases in the fuel injection volume. Techstream Display (Sensor) Injection Volume Status Voltage AFS Voltage B1S1 or AFS Voltage B2S1 (Air fuel ratio) +25% Rich Less than 3.1 V AFS Voltage B1S1 or AFS Voltage B2S1 (Air fuel ratio) -12.5% Lean More than 3.4 V O2S B1S2 or O2S B2S2 (Heated oxygen) +25% Rich More than 0.55 V O2S B1S2 or O2S B2S2 (Heated oxygen) -12.5% Lean Less than 0.4 V Result Status AFS Voltage B1S1 or AFS Voltage B2S1 Status O2S B1S2 or O2S B2S2 Air Fuel Ratio Condition and Air Fuel Ratio Sensor Condition Misfire Suspected Trouble Area Proceed to Lean/Rich Lean/Rich Normal - - A 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 Engine coolant temperature sensor 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 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: During the Control the Injection Volume for A/F Sensor Active Test, the air fuel ratio sensor output voltage (AFS Voltage) is consistently more than 3.4 V, and the heated oxygen sensor output voltage (O2S) is consistently less than 0.4 V. Rich: During the Control the Injection Volume for A/F Sensor Active Test, the AFS Voltage is consistently less than 3.1 V, and the O2S is consistently more than 0.55 V. Lean/Rich: During the Control the Injection Volume for A/F Sensor Active Test, the output voltage of the heated oxygen sensor alternates correctly. B --> See step 11 A: Go to next step
5. READ VALUE USING TECHSTREAM (COOLANT TEMP) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Coolant Temp. Read the Data List twice, when the engine is both cold and warmed up. Standard With cold engine Same as ambient air temperature. With warm engine Between 75°C and 95°C (167°F and 203°F) NG --> See step 21 OK: Go to next step
6. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY Inspect the mass air flow meter sub-assembly. Refer to «ON-VEHICLE INSPECTION»(ref-400788-S20585533102011051800000) . NG --> See step 22 OK: Go to next step
7. CHECK FUEL PRESSURE Check the fuel pressure. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-400801-S16632970622011051800000) . NG --> REPAIR OR REPLACE FUEL SYSTEM OK: Go to next step
8. INSPECT FOR EXHAUST GAS LEAK Inspect for exhaust gas leaks from the exhaust manifold sub-assembly and exhaust pipes. OK No gas leaks NG --> REPAIR OR REPLACE EXHAUST GAS LEAK POINT OK: Go to next step
9. CHECK IGNITION SYSTEM Check the ignition system. Refer to «ON-VEHICLE INSPECTION»(ref-400789-S35755739742011051800000) . NG --> REPAIR OR REPLACE IGNITION SYSTEM OK: Go to next step
10. INSPECT FUEL INJECTOR ASSEMBLY (INJECTION VOLUME) Inspect the fuel injector assembly. Refer to «INSPECTION»(ref-400791-S21918100082011051800000) . NG --> See step 23 OK: Go to next step
11. INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE) Disconnect the air fuel ratio sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 (HA1A) - 2 (+B) 20°C (68°F) 1.8 to 3.4 ohms 1 (HA1A) - 4 (A1A-) Always 10 kohms or higher 1 (HA2A) - 2 (+B) 20°C (68°F) 1.8 to 3.4 ohms 1 (HA2A) - 4 (A2A-) Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Air Fuel Ratio Sensor) *2 Bank 1 *3 Bank 2 Reconnect the air fuel ratio sensor connector. NG --> See step 24 OK: Go to next step
12. CHECK TERMINAL VOLTAGE (+B TERMINAL OF AIR FUEL RATIO SENSOR) Disconnect the air fuel ratio sensor connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition D20-2 (+B) - Body ground Engine switch on (IG) 11 to 14 V D19-2 (+B) - Body ground Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Air Fuel Ratio Sensor) *2 Bank 1 *3 Bank 2 Reconnect the air fuel ratio sensor connector. NG --> See step 16 OK: Go to next step
13. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM) Disconnect the air fuel ratio sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition D20-1 (HA1A) - D1-22 (HA1A) Always Below 1 ohms D20-3 (A1A+) - D1-126 (A1A+) Always Below 1 ohms D20-4 (A1A-) - D1-125 (A1A-) Always Below 1 ohms D19-1 (HA2A) - D1-20 (HA2A) Always Below 1 ohms D19-3 (A2A+) - D1-103 (A2A+) Always Below 1 ohms D19-4 (A2A-) - D1-102 (A2A-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition D20-1 (HA1A) or D1-22 (HA1A) - Body ground Always 10 kohms or higher D20-3 (A1A+) or D1-126 (A1A+) - Body ground Always 10 kohms or higher D20-4 (A1A-) or D1-125 (A1A-) - Body ground Always 10 kohms or higher D19-1 (HA2A) or D1-20 (HA2A) - Body ground Always 10 kohms or higher D19-3 (A2A+) or D1-103 (A2A+) - Body ground Always 10 kohms or higher D19-4 (A2A-) or D1-102 (A2A-) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Air Fuel Ratio Sensor) *2 Front view of wire harness connector (to ECM) *3 Bank 1 *4 Bank 2 Reconnect the ECM connector. Reconnect the air fuel ratio sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AIR FUEL RATIO SENSOR - ECM) OK: Go to next step
14. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-400788-S35731488742011051800000) . NEXT: Go to next step
15. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400784-S02158227972011051800000) . Turn the engine switch off. Turn the engine switch on (IG) and turn the Techstream on. 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 / Utility / All Readiness. Input the DTC: P0171, P0172, P0174 or P0175. Check the DTC judgment result. Result Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P0171, P0172, P0174 or P0175 is output) B B --> See step 25 A --> END
16. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ENGINE ROOM JUNCTION BLOCK ASSEMBLY) Disconnect the air fuel ratio sensor connector. Remove the engine room junction block assembly. Disconnect the engine room junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition D20-2 (+B) - 3C-2 (Engine room junction block assembly) Always Below 1 ohms D19-2 (+B) - 3C-2 (Engine room junction block assembly) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition D20-2 (+B) or 3C-2 (Engine room junction block assembly) - Body ground Always 10 kohms or higher D19-2 (+B) or 3C-2 (Engine room junction block assembly) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Air Fuel Ratio Sensor) *2 Bank 1 *3 Bank 2 *4 Engine Room Junction Block Assembly *5 Front view of wire harness connector (to Engine Room Junction Block Assembly) - - Reconnect the engine room junction block assembly connector. Reinstall the engine room junction block assembly. Reconnect the air fuel ratio sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AIR FUEL RATIO SENSOR - ENGINE ROOM JUNCTION BLOCK ASSEMBLY) OK: Go to next step
17. CHECK TERMINAL VOLTAGE (ENGINE ROOM JUNCTION BLOCK ASSEMBLY) Remove the engine room junction block assembly. Disconnect the engine room junction block assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 3A-1 (Engine room junction block assembly) - Body ground Always 11 to 14 V TEXT IN ILLUSTRATION *1 Engine Room Junction Block Assembly *2 Front view of wire harness connector (to Engine Room Junction Block Assembly) Reconnect the engine room junction block assembly connector. Reinstall the engine room junction block assembly. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY - BATTERY) OK: Go to next step
18. CHECK HARNESS AND CONNECTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY - EFI MAIN RELAY) Remove the engine room junction block assembly. Disconnect the engine room junction block assembly connector. Remove the EFI MAIN relay from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 3C-7 (Engine room junction block assembly) - EFI MAIN relay terminal 3 Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 3C-7 (Engine room junction block assembly) or EFI MAIN relay terminal 3 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Engine Room Junction Block Assembly *2 Front view of wire harness connector (to Engine Room Junction Block Assembly) *3 Engine Room Relay Block - - Reinstall the EFI MAIN relay. Reconnect the engine room junction block assembly connector. Reinstall the engine room junction block assembly. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY - EFI MAIN RELAY) OK: Go to next step
19. CHECK HARNESS AND CONNECTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY - BODY GROUND) Remove the engine room junction block assembly. Disconnect the engine room junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 3C-17 (Engine room junction block assembly) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *1 Engine Room Junction Block Assembly *2 Front view of wire harness connector (to Engine Room Junction Block Assembly) Reconnect the engine room junction block assembly connector. Reinstall the engine room junction block assembly. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY - BODY GROUND) OK --> REPLACE ENGINE ROOM JUNCTION BLOCK ASSEMBLY
20. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-400784-S30709964352011051800000)
21. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-400788-S32944046982011051800000)
22. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL»(ref-400788-S09138879022011051800000)
23. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-400791-S00216025722011051800000)
24. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-400788-S35731488742011051800000)
25. REPLACE ECM. Refer to «REMOVAL»(ref-400788-S10545316742011051800000)

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) 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-400784-S02158227972011051800000) .
4. Turn the engine switch off.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine.
7. After starting the engine, wait 5 seconds [B].
8. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
9. Input the DTC: P0230.
10. Check the DTC judgment result [C]. 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 ABNORMAL, the system has a malfunction.
11. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
12. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
13. 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-400784-S02158227972011051800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. INSPECT F/PMP RELAY Remove the F/PMP relay from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3 - 4 No battery voltage applied to terminals 1 and 2 Below 1 ohms 3 - 4 Battery voltage applied to terminals 1 and 2 10 kohms or higher 3 - 5 No battery voltage applied to terminals 1 and 2 10 kohms or higher 3 - 5 Battery voltage applied to terminals 1 and 2 Below 1 ohms Reinstall the F/PMP relay. NG --> REPLACE F/PMP RELAY OK: Go to next step
2. CHECK TERMINAL VOLTAGE (F/PMP RELAY) Remove the F/PMP relay from the engine room relay block. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition F/PMP relay terminal 2 - Body ground Cranking 11 to 14 V F/PMP relay terminal 2 - Body ground Engine switch on (IG) 0 to 3 V TEXT IN ILLUSTRATION *1 Engine Room Relay Block Reinstall the F/PMP relay. NG --> See step 5 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (F/PMP RELAY - ECM) Remove the F/PMP relay from the engine room relay block. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition F/PMP relay terminal 1 - A43-48 (FPR) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition F/PMP relay terminal 1 or A43-48 (FPR) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Engine Room Relay Block *2 Front view of wire harness connector (to ECM) Reconnect the ECM connector. Reinstall the F/PMP relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (F/PMP RELAY - ECM) OK --> See step 4
4. REPLACE ECM. Refer to «REMOVAL»(ref-400788-S10545316742011051800000)
5. CHECK FUEL PUMP CONTROL CIRCUIT. Refer to «Fuel Pump Control Circuit»(ref-400785-S40000542032011051800000)

Scheme 255

TEXT IN ILLUSTRATION

When the engine misfires, high concentrations of hydrocarbons (HC) enter the exhaust gas. Extremely high hydrocarbon concentration levels can cause increases in exhaust emission levels. High concentrations of hydrocarbons can also cause increases in the three-way catalytic converter temperature, which may cause damage to the three-way catalytic converter. To prevent these increases in emissions and to limit the possibility of thermal damage, the ECM monitors the misfire count. When the temperature of the three-way catalytic converter reaches the point of thermal degradation, the ECM blinks the MIL. To monitor misfires, the ECM uses both the VVT sensor and the crankshaft position sensor. The VVT sensor is used to identify any misfiring cylinders and the crankshaft position sensor is used to measure variations in the crankshaft rotation speed. Misfires are counted when the crankshaft rotation speed variations exceed predetermined thresholds.

If the misfire count exceeds the threshold level and could cause emission deterioration, the ECM illuminates the MIL and sets a DTC.

When DTCs for misfiring cylinders are randomly set, but DTC P0300 is not set, it indicates that misfires have been detected in different cylinders at different times. DTC P0300 is only set when several misfiring cylinders are detected at the same time.

Scheme 256

TEXT IN ILLUSTRATION

1. The ECM illuminates the MIL and sets a DTC when either one of the following conditions, which could cause emission deterioration, is detected (2 trip detection logic). Within the first 1000 crankshaft revolutions of the engine starting, an excessive misfiring rate (approximately 20 to 50 misfires per 1000 crankshaft revolutions) occurs once. After the first 1000 crankshaft revolutions, an excessive misfiring rate (approximately 20 to 60 misfires per 1000 crankshaft revolutions) occurs 4 times in sequential crankshaft revolutions.

1. The ECM flashes the MIL and sets a DTC when either one of the following conditions, which could cause the three-way catalytic converter damage, is detected (2 trip detection logic). In every 200 crankshaft revolutions at a high engine speed, the threshold misfiring percentage is recorded once. In every 200 crankshaft revolutions at a normal engine speed, the threshold misfiring percentage is recorded 3 times.

Misfire Monitor for Mexico Models

The ECM illuminates the MIL and sets a DTC when either one of the following conditions, which could cause emission deterioration, is detected (2 trip detection logic).

1. Within the first 1000 crankshaft revolutions of the engine starting, an excessive misfiring rate (approximately 1000 misfires per 1000 crankshaft revolutions) occurs once.
2. An excessive misfiring rate (approximately 500 misfires per 1000 crankshaft revolutions) occurs a total of 4 times.

The ECM flashes the MIL and sets a DTC when the following condition, which could cause the three-way catalytic converter damage, is detected (2 trip detection logic).

1. A catalyst damage misfire, which is monitored every 200 crankshaft revolutions, occurs 3 times.

MISFIRE

MONITOR PERIOD OF EMISSION-RELATED-MISFIRE

MONITOR PERIOD OF CATALYST-DAMAGE-MISFIRE (MIL BLINKS)

FOR MEXICO MODELS

MISFIRE: FOR MEXICO MODELS

MONITOR PERIOD OF EMISSION-RELATED-MISFIRE: FOR MEXICO MODELS

MONITOR PERIOD OF CATALYST-DAMAGED-MISFIRE (MIL BLINKS): FOR MEXICO MODELS

MONITOR PERIOD OF EMISSION-RELATED-MISFIRE

MONITOR PERIOD OF CATALYST-DAMAGE-MISFIRE (MIL BLINKS)

FOR MEXICO MODELS

MONITOR PERIOD OF EMISSION-RELATED-MISFIRE: FOR MEXICO MODELS

MONITOR PERIOD OF CATALYST-DAMAGED-MISFIRE (MIL BLINKS): FOR MEXICO MODELS

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

Scheme 257

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Record the DTC(s) and freeze frame data.
5. Using the Techstream, switch the ECM from normal mode to check mode. Refer to «CHECK MODE PROCEDURE»(ref-400784-S20732471272011051800000) .
6. Read the misfire counts of each cylinder (Cylinder #1 (to #6) Misfire Count) with the engine idling. If any misfire count is displayed, skip the following confirmation driving pattern.
7. Drive the vehicle several times with the conditions, such as engine speed and engine load, shown in Misfire RPM and Misfire Load in the Data List. HINT: In order to store misfire DTCs, it is necessary to operate the vehicle for the period of time shown in the table below, using the Misfire RPM and Misfire Load in the Data List. Engine Speed Duration Idling 5 minutes or more 1000 4 minutes or more 2000 3 minutes or more 3000 2 minutes or more
8. Check whether misfires have occurred by checking DTCs and freeze frame data. HINT: Do not turn the engine switch off until the stored DTC(s) and freeze frame data have been recorded. When the ECM returns to normal mode (default), the stored DTC(s), freeze frame data and other data will be cleared.
9. Record the DTC(s), freeze frame data and misfire counts.
10. Turn the engine switch off and wait for at least 5 seconds.

MISFIRE

MONITOR PERIOD OF EMISSION-RELATED-MISFIRE

MONITOR PERIOD OF CATALYST-DAMAGE-MISFIRE (MIL BLINKS)

FOR MEXICO MODELS

MISFIRE: FOR MEXICO MODELS

MONITOR PERIOD OF EMISSION-RELATED-MISFIRE: FOR MEXICO MODELS

MONITOR PERIOD OF CATALYST-DAMAGED-MISFIRE (MIL BLINKS): FOR MEXICO MODELS

MONITOR PERIOD OF EMISSION-RELATED-MISFIRE

MONITOR PERIOD OF CATALYST-DAMAGE-MISFIRE (MIL BLINKS)

FOR MEXICO MODELS

MONITOR PERIOD OF EMISSION-RELATED-MISFIRE: FOR MEXICO MODELS

MONITOR PERIOD OF CATALYST-DAMAGED-MISFIRE (MIL BLINKS): FOR MEXICO MODELS

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

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Record the DTC(s) and freeze frame data.
5. Using the Techstream, switch the ECM from normal mode to check mode. Refer to «CHECK MODE PROCEDURE»(ref-400784-S20732471272011051800000) .
6. Read the misfire counts of each cylinder (Cylinder #1 (to #6) Misfire Count) with the engine idling. If any misfire count is displayed, skip the following confirmation driving pattern.
7. Drive the vehicle several times with the conditions, such as engine speed and engine load, shown in Misfire RPM and Misfire Load in the Data List. HINT: In order to store misfire DTCs, it is necessary to operate the vehicle for the period of time shown in the table below, using the Misfire RPM and Misfire Load in the Data List. Engine Speed Duration Idling 5 minutes or more 1000 4 minutes or more 2000 3 minutes or more 3000 2 minutes or more
8. Check whether misfires have occurred by checking DTCs and freeze frame data. HINT: Do not turn the engine switch off until the stored DTC(s) and freeze frame data have been recorded. When the ECM returns to normal mode (default), the stored DTC(s), freeze frame data and other data will be cleared.
9. Record the DTC(s), freeze frame data and misfire counts.
10. Turn the engine switch off and wait for at least 5 seconds.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO MISFIRE CODES) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 are output A DTC P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 and other DTCs are output B HINT: If any DTCs other than P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 are output, troubleshoot those DTCs first. B --> See step 34 A: Go to next step
2. READ VALUE USING TECHSTREAM (MISFIRE RPM AND MISFIRE LOAD) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Misfire RPM and Misfire Load. Read and note the Misfire RPM and Misfire Load values. HINT: The Misfire RPM and Misfire Load values indicate the vehicle conditions under which the misfire occurred. NEXT: Go to next step
3. CHECK PCV HOSE (HOSE CONNECTIONS) Check the PCV hose connections. Refer to «ON-VEHICLE INSPECTION»(ref-400794-S35833604912011051800000) . OK PCV hose is connected correctly and is not damaged. NG --> REPAIR OR REPLACE PCV HOSE OK: Go to next step
4. READ VALUE USING TECHSTREAM (CATALYST OT MF F/C) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Catalyst OT MF F/C. Read the value displayed on the Techstream. Result Data List Techstream Display Proceed to Catalyst OT MF F/C Avail A Not Avl B B --> See step 6 A: Go to next step
5. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Active Test / Prohibit the Catalyst OT Misfire prevent F/C. Perform the Active Test. NOTE: When performing the Active Test, make sure that the vehicle is stopped and either idling or being revved within 3000 rpm. NEXT: Go to next step
6. READ VALUE USING TECHSTREAM (CYLINDER #1 (TO #6) MISFIRE COUNT) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on (Step "A"). Enter the following menus: Powertrain / Engine / Data List / Cylinder #1 (to #6) Misfire Count (Step "B"). Read each value for Cylinder #1 (to #6) Misfire Count displayed on the Techstream. If no misfire counts occur in any cylinders, perform the following procedure: Start the engine and let it idle. Move the shift lever to D. Check the Cylinder #1 (to #6) Misfire Count. If misfire counts are still not displayed, perform steps ("A") and ("B"). Drive the vehicle while satisfying the Misfire RPM and Misfire Load values noted in the "Read Value Using Techstream (Misfire RPM and Misfire Load)" procedure above. Read Cylinder #1 (to #6) Misfire Count or the DTCs displayed on the Techstream. Result Misfire Count Proceed to Most misfires occur in only 1 or 2 cylinders A 3 cylinders or more have equal misfire counts B HINT: If it is difficult to reproduce misfires for each cylinder, check the Data List item called Misfire Margin. Try to find vehicle driving conditions that lower the Misfire Margin value. Values above 30% are considered normal. If the Coolant Temp value of the freeze frame data is below 75°C (167°F), the misfire may be detected only when the engine is cold. If Engine Run Time value of the freeze frame data is below 120 seconds, the misfire may be detected immediately after the engine is started. B --> See step 19 A: Go to next step
7. CHECK SPARK PLUG Remove the ignition coil assembly and the spark plug of the misfiring cylinder. Measure the spark plug electrode gap. Maximum gap 1.4 mm (0.0551 in.) Check the electrode for carbon deposits. RECOMMENDED SPARK PLUG Manufacturer Product DENSO FK20HR11 NOTE: If the electrode gap is larger than the maximum, replace the spark plug. Do not adjust the electrode gap. Reinstall the ignition coil assembly and the spark plug. NG --> See step 35 OK: Go to next step
8. CHECK FOR SPARK AND IGNITION (SPARK TEST) Perform a spark test. WARNING: During the test, disconnect all fuel injector assembly connectors. NOTE: Do not crank the engine for more than 2 seconds. Remove the ignition coil assembly from the cylinder head. Install the spark plug onto the ignition coil assembly. Disconnect the 6 fuel injector assembly connectors. Touch the spark plug to the cylinder head. Crank the engine for less than 2 seconds and check for spark. OK Spark jumps across electrode gap. Reconnect the 6 fuel injector assembly connectors. Reinstall the ignition coil assembly. NG --> See step 31 OK: Go to next step
9. CHECK CYLINDER COMPRESSION PRESSURE OF MISFIRING CYLINDER Measure the cylinder compression pressure of the misfiring cylinder. Refer to «ON-VEHICLE INSPECTION - Step 11»(ref-400790-S02072595702011051800000) . NG --> CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION OK: Go to next step
10. CHECK FUEL INJECTOR ASSEMBLY (POWER SOURCE) Disconnect the fuel injector assembly connectors. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition D13-2 - Body ground Engine switch on (IG) 11 to 14 V D14-2 - Body ground Engine switch on (IG) 11 to 14 V D15-2 - Body ground Engine switch on (IG) 11 to 14 V D16-2 - Body ground Engine switch on (IG) 11 to 14 V D17-2 - Body ground Engine switch on (IG) 11 to 14 V D18-2 - Body ground Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Fuel Injector Assembly) Reconnect the fuel injector assembly connectors. NG --> See step 36 OK: Go to next step
11. CHECK HARNESS AND CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM) Disconnect the fuel injector assembly connectors. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition D13-1 - D1-86 (#10) Always Below 1 ohms D14-1 - D1-109 (#20) Always Below 1 ohms D15-1 - D1-85 (#30) Always Below 1 ohms D16-1 - D1-108 (#40) Always Below 1 ohms D17-1 - D1-84 (#50) Always Below 1 ohms D18-1 - D1-107 (#60) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition D13-1 or D1-86 (#10) - Body ground Always 10 kohms or higher D14-1 or D1-109 (#20) - Body ground Always 10 kohms or higher D15-1 or D1-85 (#30) - Body ground Always 10 kohms or higher D16-1 or D1-108 (#40) - Body ground Always 10 kohms or higher D17-1 or D1-84 (#50) - Body ground Always 10 kohms or higher D18-1 or D1-107 (#60) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Fuel Injector Assembly) *2 Front view of wire harness connector (to ECM) Reconnect the fuel injector assembly connectors. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM) OK: Go to next step
12. INSPECT ECM TERMINAL OF MISFIRING CYLINDER (#10, #20, #30, #40, #50 AND/OR #60 VOLTAGE) Disconnect the ECM connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition D1-86 (#10) - D1-43 (E01) Engine switch on (IG) 11 to 14 V D1-109 (#20) - D1-43 (E01) Engine switch on (IG) 11 to 14 V D1-85 (#30) - D1-43 (E01) Engine switch on (IG) 11 to 14 V D1-108 (#40) - D1-43 (E01) Engine switch on (IG) 11 to 14 V D1-84 (#50) - D1-43 (E01) Engine switch on (IG) 11 to 14 V D1-107 (#60) - D1-43 (E01) Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to ECM) Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - BODY GROUND) OK: Go to next step
13. CHECK FUEL INJECTOR ASSEMBLY OF MISFIRING CYLINDER Check the fuel injector assembly injection (whether fuel volume is high or low, and whether injection pattern is poor). Refer to «INSPECTION»(ref-400791-S21918100082011051800000) . NG --> See step 37 OK: Go to next step
14. INSPECT INTAKE SYSTEM Check the intake system for vacuum leaks. Refer to «ON-VEHICLE INSPECTION»(ref-400792-S33062746192011051800000) . OK No leaks in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
15. CHECK FUEL PRESSURE Check the fuel pressure. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-400801-S16632970622011051800000) . NG --> See step 33 OK: Go to next step
16. READ VALUE USING TECHSTREAM (COOLANT TEMP) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Coolant Temp. Read the Coolant Temp twice, when the engine is both cold and warmed up. Standard With cold engine Same as ambient temperature. With warm engine Between 75°C and 95°C (167°F and 203°F). NG --> See step 38 OK: Go to next step
17. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY HINT: Inspect the mass air flow meter sub-assembly. Refer to «ON-VEHICLE INSPECTION»(ref-400788-S20585533102011051800000) . NG --> See step 39 OK: Go to next step
18. CHECK VALVE TIMING HINT: Check the valve timing. Refer to «PROCEDURE - Step 5»(ref-400796-S00856760512011051800000) . NG --> See step 40 OK --> See step 41
19. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks. Refer to «ON-VEHICLE INSPECTION»(ref-400792-S33062746192011051800000) . OK No leaks in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
20. CHECK FUEL PRESSURE Check the fuel pressure. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-400801-S16632970622011051800000) . NG --> See step 33 OK: Go to next step
21. READ VALUE USING TECHSTREAM (COOLANT TEMP) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Coolant Temp. Read the Coolant Temp twice, when the engine is both cold and warmed up. Standard With cold engine Same as ambient air temperature. With warm engine Between 75°C and 95°C (167°F and 203°F). NG --> See step 38 OK: Go to next step
22. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY HINT: Inspect the mass air flow meter sub-assembly. Refer to «ON-VEHICLE INSPECTION»(ref-400788-S20585533102011051800000) . NG --> See step 39 OK: Go to next step
23. CHECK VALVE TIMING HINT: Check the valve timing. Refer to «PROCEDURE - Step 5»(ref-400796-S00856760512011051800000) . NG --> See step 40 OK: Go to next step
24. CHECK SPARK PLUG Remove the ignition coil assembly and the spark plug of the misfiring cylinder. Measure the spark plug electrode gap. Maximum gap 1.4 mm (0.0551 in.) Check the electrode for carbon deposits. RECOMMENDED SPARK PLUG Manufacturer Product DENSO FK20HR11 NOTE: If the electrode gap is larger than the maximum, replace the spark plug. Do not adjust the electrode gap. Reinstall the ignition coil assembly and the spark plug. NG --> See step 35 OK: Go to next step
25. CHECK FOR SPARK AND IGNITION (SPARK TEST) Perform a spark test. WARNING: During the test, disconnect all fuel injector assembly connectors. NOTE: Do not crank the engine for more than 2 seconds. Remove the ignition coil assembly from the cylinder head. Install the spark plug onto the ignition coil assembly. Disconnect the 6 fuel injector assembly connectors. Touch the spark plug to the cylinder head. Crank the engine for less than 2 seconds and check for spark. OK Spark jumps across electrode gap. Reconnect the 6 fuel injector assembly connectors. Reinstall the ignition coil assembly. NG --> See step 31 OK: Go to next step
26. CHECK CYLINDER COMPRESSION PRESSURE OF MISFIRING CYLINDER Measure the cylinder compression pressure of the misfiring cylinder. Refer to «ON-VEHICLE INSPECTION - Step 11»(ref-400790-S02072595702011051800000) . NG --> CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION OK: Go to next step
27. CHECK FUEL INJECTOR ASSEMBLY (POWER SOURCE) Disconnect the fuel injector assembly connectors. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition D13-2 - Body ground Engine switch on (IG) 11 to 14 V D14-2 - Body ground Engine switch on (IG) 11 to 14 V D15-2 - Body ground Engine switch on (IG) 11 to 14 V D16-2 - Body ground Engine switch on (IG) 11 to 14 V D17-2 - Body ground Engine switch on (IG) 11 to 14 V D18-2 - Body ground Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Fuel Injector Assembly) Reconnect the fuel injector assembly connectors. NG --> See step 36 OK: Go to next step
28. CHECK HARNESS AND CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM) Disconnect the fuel injector assembly connectors. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition D13-1 - D1-86 (#10) Always Below 1 ohms D14-1 - D1-109 (#20) Always Below 1 ohms D15-1 - D1-85 (#30) Always Below 1 ohms D16-1 - D1-108 (#40) Always Below 1 ohms D17-1 - D1-84 (#50) Always Below 1 ohms D18-1 - D1-107 (#60) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition D13-1 or D1-86 (#10) - Body ground Always 10 kohms or higher D14-1 or D1-109 (#20) - Body ground Always 10 kohms or higher D15-1 or D1-85 (#30) - Body ground Always 10 kohms or higher D16-1 or D1-108 (#40) - Body ground Always 10 kohms or higher D17-1 or D1-84 (#50) - Body ground Always 10 kohms or higher D18-1 or D1-107 (#60) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Fuel Injector Assembly) *2 Front view of wire harness connector (to ECM) Reconnect the fuel injector assembly connectors. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM) OK: Go to next step
29. INSPECT ECM TERMINAL OF MISFIRING CYLINDER (#10, #20, #30, #40, #50 AND/OR #60 VOLTAGE) Disconnect the ECM connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition D1-86 (#10) - D1-43 (E01) Engine switch on (IG) 11 to 14 V D1-109 (#20) - D1-43 (E01) Engine switch on (IG) 11 to 14 V D1-85 (#30) - D1-43 (E01) Engine switch on (IG) 11 to 14 V D1-108 (#40) - D1-43 (E01) Engine switch on (IG) 11 to 14 V D1-84 (#50) - D1-43 (E01) Engine switch on (IG) 11 to 14 V D1-107 (#60) - D1-43 (E01) Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to ECM) Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - BODY GROUND) OK: Go to next step
30. CHECK FUEL INJECTOR ASSEMBLY OF MISFIRING CYLINDER Check the fuel injector assembly injection (whether fuel volume is high or low, and whether injection pattern is poor). Refer to «INSPECTION»(ref-400791-S21918100082011051800000) . NG --> See step 42 OK --> See step 41
31. CHANGE TO KNOWN GOOD SPARK PLUG AND CHECK SPARK OF MISFIRING CYLINDER Change the installed spark plug to a known good spark plug. Perform a spark test. WARNING: During the test, disconnect all fuel injector assembly connectors. NOTE: Do not crank the engine for more than 2 seconds. Remove the ignition coil assembly from the cylinder head. Install the spark plug onto the ignition coil assembly. Disconnect the 6 fuel injector assembly connectors. Touch the spark plug to the cylinder head. Crank the engine for less than 2 seconds and check for spark. OK Spark jumps across electrode gap. Reconnect the 6 fuel injector assembly connectors. Reinstall the ignition coil assembly. NG --> See step 32 OK --> See step 35
32. CHANGE TO KNOWN GOOD IGNITION COIL ASSEMBLY AND CHECK SPARK OF MISFIRING CYLINDER Change the installed ignition coil assembly to a known good ignition coil assembly. Perform a spark test. WARNING: During the test, disconnect all fuel injector assembly connectors. NOTE: Do not crank the engine for more than 2 seconds. Remove the ignition coil assembly from the cylinder head. Install the spark plug onto the ignition coil assembly. Disconnect the 6 fuel injector assembly connectors. Touch the spark plug to the cylinder head. Crank the engine for less than 2 seconds and check for spark. OK Spark jumps across electrode gap. Reconnect the 6 fuel injector assembly connectors. Reinstall the ignition coil assembly. NG --> See step 41 OK --> See step 43
33. CHECK FUEL LINE Check the fuel lines for leaks or blockage. NG --> REPAIR OR REPLACE FUEL LINE OK --> See step 44
34. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-400784-S30709964352011051800000)
35. REPLACE SPARK PLUG. Refer to «REMOVAL»(ref-400788-S04564061382011051800000)
36. CHECK FUEL INJECTOR CIRCUIT. Refer to «Fuel Injector Circuit»(ref-400785-S30191339572011051800000)
37. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-400791-S00216025722011051800000)
38. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-400788-S32944046982011051800000)
39. REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to «REMOVAL»(ref-400788-S09138879022011051800000)
40. ADJUST VALVE TIMING. Refer to «DISASSEMBLY»(ref-400790-S23966748502011051800000)
41. REPLACE ECM. Refer to «REMOVAL»(ref-400788-S10545316742011051800000)
42. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-400791-S00216025722011051800000)
43. REPLACE IGNITION COIL ASSEMBLY. Refer to «REMOVAL»(ref-400788-S04564061382011051800000)
44. REPLACE FUEL PUMP. Refer to «REMOVAL»(ref-400791-S28766966852011051800000)

KNOCK SENSOR RANGE CHECK (LOW VOLTAGE): P0327 AND P0332

KNOCK SENSOR RANGE CHECK (HIGH VOLTAGE): P0328 AND P0333

Scheme 258

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) 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-400784-S05337578742011051800000) .
4. Turn the engine switch off.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine and wait 10 seconds.
7. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
8. Input the DTC: P0327, P0328, P0332 or P0333.
9. 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 ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, idle the engine for 5 minutes and check the DTC judgment result again [C].
10. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
11. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
12. 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-400784-S05337578742011051800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 259

KNOCK SENSOR RANGE CHECK (LOW VOLTAGE): P0327 AND P0332

KNOCK SENSOR RANGE CHECK (HIGH VOLTAGE): P0328 AND P0333

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) 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-400784-S02158227972011051800000) .
4. Turn the engine switch off.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine and wait 10 seconds.
7. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
8. Input the DTC: P0327, P0328, P0332 or P0333.
9. 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 ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, idle the engine for 5 minutes and check the DTC judgment result again [C].
10. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
11. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
12. 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-400784-S02158227972011051800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. INSPECT ECM (KNK1, KNK2 VOLTAGE) Disconnect the knock control sensor connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition b2-1 - b2-2 Engine switch on (IG) 4.5 to 5.5 V b1-1 - b1-2 Engine switch on (IG) 4.5 to 5.5 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Knock Control Sensor) *2 Bank 1 *3 Bank 2 Reconnect the knock control sensor connector. NG --> See step 3 OK: Go to next step
2. INSPECT KNOCK CONTROL SENSOR Remove the knock control sensor. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 120 to 280 kohms TEXT IN ILLUSTRATION *1 Component without harness connected (Knock Control Sensor) *2 Ohmmeter Reinstall the knock control sensor. NG --> See step 4 OK --> See step 5
3. CHECK HARNESS AND CONNECTOR (KNOCK CONTROL SENSOR - ECM) Disconnect the knock control sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition b2-2 - D1-94 (KNK1) Always Below 1 ohms b2-1 - D1-93 (EKNK) Always Below 1 ohms b1-2 - D1-117 (KNK2) Always Below 1 ohms b1-1 - D1-116 (EKN2) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition b2-2 or D1-94 (KNK1) - Body ground Always 10 kohms or higher b2-1 or D1-93 (EKNK) - Body ground Always 10 kohms or higher b1-2 or D1-117 (KNK2) - Body ground Always 10 kohms or higher b1-1 or D1-116 (EKN2) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Knock Control Sensor) *2 Front view of wire harness connector (to ECM) *3 Bank 1 *4 Bank 2 Reconnect the knock control sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (KNOCK CONTROL SENSOR - ECM) OK --> See step 5
4. REPLACE KNOCK CONTROL SENSOR. Refer to «REMOVAL»(ref-400788-S41181753862011051800000)
5. REPLACE ECM. Refer to «REMOVAL»(ref-400788-S10545316742011051800000)

ALL

P0335: CRANKSHAFT POSITION SENSOR RANGE CHECK/RATIONALITY

P0335: CRANKSHAFT POSITION SENSOR VERIFY PULSE INPUT (CASE 1)

P0335: CRANKSHAFT POSITION SENSOR VERIFY PULSE INPUT (CASE 2)

P0335: CRANKSHAFT POSITION SENSOR RANGE CHECK/RATIONALITY

P0335: CRANKSHAFT POSITION SENSOR VERIFY PULSE INPUT

Scheme 260

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) 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-400784-S05337578742011051800000) .
4. Turn the engine switch off.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine.
7. Idle the engine for 20 seconds or more [B].
8. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
9. Input the DTC: P0335 or P0339.
10. Check the DTC judgment result [C]. 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 ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] and [C] again.
11. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
12. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
13. 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-400784-S05337578742011051800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 261

ALL

P0335: CRANKSHAFT POSITION SENSOR RANGE CHECK/RATIONALITY

P0335: CRANKSHAFT POSITION SENSOR VERIFY PULSE INPUT (CASE 1)

P0335: CRANKSHAFT POSITION SENSOR VERIFY PULSE INPUT (CASE 2)

P0335: CRANKSHAFT POSITION SENSOR RANGE CHECK/RATIONALITY

P0335: CRANKSHAFT POSITION SENSOR VERIFY PULSE INPUT

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) 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-400784-S02158227972011051800000) .
4. Turn the engine switch off.
5. Turn the engine switch on (IG) and turn the Techstream on [A].
6. Start the engine.
7. Idle the engine for 20 seconds or more [B].
8. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
9. Input the DTC: P0335 or P0339.
10. Check the DTC judgment result [C]. 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 ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] and [C] again.
11. If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
12. Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
13. 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-400784-S02158227972011051800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. READ VALUE USING TECHSTREAM (ENGINE SPEED) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Engine Speed. Start the engine. Read the values displayed on the Techstream while the engine is running. Standard Correct values are displayed. HINT: To check the engine speed change, display the graph on the Techstream. If the engine does not start, check the engine speed while cranking. If the engine speed indicated on the Techstream remains zero (0), there may be an open or short in the crankshaft position sensor circuit. NG --> See step 2 OK --> See step 6
2. INSPECT CRANKSHAFT POSITION SENSOR Disconnect the crankshaft position sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 Cold 1630 to 2740 ohms 1 - 2 Hot 2065 to 3225 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Crankshaft Position Sensor) NOTE: Terms "cold" and "hot" refer to the temperature of the coils. "Cold" means approximately -10 to 50°C (14 to 122°F). "Hot" means approximately 50 to 100°C (122 to 212°F). Reconnect the crankshaft position sensor connector. NG --> See step 7 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) Disconnect the crankshaft position sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition D21-1 (NE+) - D1-110 (NE+) Always Below 1 ohms D21-2 (NE-) - D1-111 (NE-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition D21-1 (NE+) or D1-110 (NE+) - Body ground Always 10 kohms or higher D21-2 (NE-) or D1-111 (NE-) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Crankshaft Position Sensor) *2 Front view of wire harness connector (to ECM) Reconnect the ECM connector. Reconnect the crankshaft position sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) OK: Go to next step
4. CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR) Check the crankshaft position sensor installation condition. OK Sensor is installed correctly. NG --> See step 8 OK: Go to next step
5. CHECK CRANKSHAFT (TEETH OF CRANK ANGLE SENSOR PLATE) Check the teeth of the crank angle sensor plate. OK Crank angle sensor plate does not have any cracks or deformation. NG --> See step 9 OK --> See step 10
6. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-400784-S22487773382011051800000)
7. REPLACE CRANKSHAFT POSITION SENSOR. Refer to «REMOVAL»(ref-400788-S03042839112011051800000)
8. SECURELY REINSTALL CRANKSHAFT POSITION SENSOR. Refer to «REMOVAL»(ref-400788-S03042839112011051800000)
9. REPLACE CRANKSHAFT. Refer to «DISASSEMBLY»(ref-400790-S25514228512011051800000)
10. REPLACE ECM. Refer to «REMOVAL»(ref-400788-S10545316742011051800000)