Honda CR-V: DTC P2135: TP Sensor A/B Voltage Incorrect Correlation

CAUTION

Do not insert your fingers into the installed throttle body when you turn the ignition switch ON (II) or while the ignition switch is ON (II). If you do, you will seriously injure your fingers if the throttle valve is activated.

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.

1. Turn the ignition switch ON (II).

2. Clear the DTC with the HDS.

3. Do the ETCS TEST in the INSPECTION MENU with the HDS.

4. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2135 indicated? YES-Go to step 5.

NO-Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the throttle body and the PCM.

5. Turn the ignition switch OFF.

6. Disconnect the air intake duct from the throttle body.

7. Turn the ignition switch ON (II).

8. Clear the DTC with the HDS.

9. Visually check the throttle valve operation.

Does the valve temporarily move to its fully closed position? YES-Go to step 16.

NO-Go to step 10.

10. Turn the ignition switch OFF.

11. Jump the SCS line with the HDS.

12. Disconnect PCM connector C (44P).

13. Check for continuity between PCM connector terminals C20 and C21.

Honda CR-V. DTC Troubleshooting

Is there continuity? YES-Go to step 14.

NO-Go to step 23.

14. Disconnect the throttle body 6P connector.

15. Check for continuity between PCM connector terminals C20 and C21.

Honda CR-V. DTC Troubleshooting

Is there continuity? YES-Repair short in the wires between PCM C20 (TPSA line) and C21 (TPSB line), then go to step 18.

NO-Go to step 16.

16. Turn the ignition switch OFF.

17. Replace the throttle body.

18. Reconnect all connectors.

19. Turn the ignition switch ON (II).

20. Reset the PCM with the HDS.

21. Do the PCM idle learn procedure.

22. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2135 indicated? YES-Check for poor connections or loose terminals at the throttle body and the PCM, then go to step 1.

NO-Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.

23. Reconnect all connectors.

24. Update the PCM if it does not have the latest software, or substitute a known-good PCM.

25. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2135 indicated? YES-Check for poor connections or loose terminals at the throttle body and the PCM. If the PCM was updated, substitute a known-good PCM, then recheck. If the PCM was substituted, go to step 1.

NO-If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.

DTC P2138: APP Sensor A/B (Throttle Position Sensor D/E) Incorrect Voltage Correlation

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.

1. Turn the ignition switch ON (II).

2. Clear the DTC with HDS.

3. Press the accelerator pedal to the floor.

4. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2138 indicated? YES-Go to step 5.

NO-Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the APP sensor and the PCM.

5. Check APP SENSOR A and APP SENSOR B in the DATA LIST with the HDS.

Are they the same voltage? YES-Go to step 6.

NO-Go to step 12.

6. Turn the ignition switch OFF.

7. Jump the SCS line with the HDS.

8. Disconnect PCM connector A (44P).

9. Check for continuity between PCM connector terminals A17 andA18.

Honda CR-V. DTC Troubleshooting

Is there continuity? YES-Go to step 10.

NO-Go to step 22.

10. Disconnect the APP sensor 6P connector.

11. Check for continuity between PCM connector terminals A17 andA18.

Honda CR-V. DTC Troubleshooting

Is there continuity? YES-Repair short in the wires between PCM connector terminals A 17 (APSA line) and A18 (APSB line), then go to step 14.

NO-Go to step 13.

12. Turn the ignition switch OFF.

13. Replace the accelerator pedal module.

14. Reconnect all connectors.

15. Turn the ignition switch ON (II).

16. Reset the PCM with the HDS.

17. Do the PCM idle learn procedure.

18. Turn the ignition switch OFF.

19. Turn the ignition switch ON (II).

20. Press the accelerator pedal to the floor.

21. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2138 indicated? YES-Check for poor connections or loose terminals at APP sensor A/B and the PCM, then go to step 1.

NO-Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.

22. Reconnect all connectors.

23. Update the PCM if it does not have the latest software. or substitute a known-good PCM.

24. Turn the ignition switch OFF.

25. Turn the ignition switch ON (II).

26. Press the accelerator pedal to the floor.

27. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2138 indicated? YES-Check for poor connections or loose terminals at APP sensor A/B and the PCM. If the PCM was updated, substitute a known-good PCM, then go to step 24. If the PCM was substituted, go to step 1.

NO-If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.

DTC P2176: Throttle Actuator Control System Idle Position Not Learned

CAUTION

Do not insert your fingers into the installed throttle body when you turn the ignition switch ON (II) or while the ignition switch is ON (II). If you do, you will seriously injure your fingers if the throttle valve is activated.

NOTE:

1. Turn the ignition switch ON (II).

2. Clear the DTC with the HDS.

3. Turn the ignition switch OFF.

4. Turn the ignition switch ON (II), and wait 10 seconds.

5. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2176 indicated? YES-Go to step 6.

NO-Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the throttle body and the PCM, then clean the throttle body.

6. Turn the ignition switch OFF.

7. Disconnect the air intake duct from the throttle body.

8. Turn the ignition switch ON (II).

9. Clear the DTC with the HDS.

10. Do the ETCS TEST in the INSPECTION MENU with the HDS.

11. Visually check the throttle valve operation.

Does the throttle valve move to its fully closed position? YES-Go to step 12.

NO-Go to step 13.

12. Check for sludge or carbon on the throttle valve.

Is there sludge or carbon on the throttle valve? YES-Clean the throttle body, then go to step 22.

NO-Go to step 19.

13. Turn the ignition switch OFF.

14. Disconnect the throttle body 6P connector.

15. Jump the SCS line with the HDS.

16. Disconnect PCM connector C (44P).

17. Connect throttle body 6P connector terminals No.5 and No.6 with a jumper wire.

Honda CR-V. DTC Troubleshooting

18. Check for continuity between PCM connector terminals C3 and C4.

Honda CR-V. DTC Troubleshooting

Is there continuity? YES-Go to step 28.

NO-Repair open in the wires between the throttle body and the PCM (C3, C4), then go to step 21.

19. Turn the ignition switch OFF.

20. Replace the throttle body.

21. Reconnect all connectors.

22. Turn the ignition switch ON (II).

23. Reset the PCM with the HDS.

24. Do the PCM idle learn procedure.

25. Turn the ignition switch OFF.

26. Turn the ignition switch ON (II), and wait 10 seconds.

27. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2176 indicated? YES-Check for poor connections or loose terminals at the throttle body and the PCM, then clean the throttle body, and go to step 1.

NO-Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.

28. Reconnect all connectors.

29. Update the PCM if it does not have the latest software, or substitute a known-good PCM.

30. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2176 indicated? YES-Check for poor connections or loose terminals at the throttle body and the PCM. If the PCM was updated, substitute a known-good PCM, then recheck. If the PCM was substituted, go to step 1.

NO-If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting;.

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