DTC Troubleshooting

DTC Troubleshooting: P2135

DTC P2135: TP Sensor A/B Incorrect Voltage Correlation

CAUTION
Do not insert your fingers into the installed throttle body when you turn the ignition switch to ON (II) or while the ignition switch is in 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. Reading and Clearing Diagnostic Trouble Codes

1. Turn the ignition switch to ON (II).

2. Clear the DTC with the HDS.

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

4. Check for Pending or Confirmed 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 throttle actuator control module.


5. Turn the ignition switch to LOCK (0).

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

7. Turn the ignition switch to ON (II).

8. Visually check the throttle valve operation while you clear the DTC with the HDS.

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

NO - Go to step 9.


9. Turn the ignition switch to LOCK (0).

10. Disconnect the C251 connector (13P) between the PCM subharness and the throttle actuator control module subharness.

11. Check for continuity between C251 connector (13P) terminals No. 2 and No. 4.

Is there continuity?
YES - Go to step 12.

NO - Go to step 14.






12. Disconnect the throttle body 6P connector.

13. Check for continuity between C251 connector (13P) terminals No. 2 and No. 4.

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

NO - Go to step 16.






14. Disconnect the throttle actuator control module 16P connector. Service and Repair

15. Check for continuity between C251 connector (13P) terminals No. 2 and No. 4.

Is there continuity?
YES - Repair short in the wires between the TPSA line and the TPSB line of the throttle actuator control module subharness, then go to step 18.

NO - Go to step 23.






16. Turn the ignition switch to LOCK (0).

17. Replace the throttle body. Removal and Replacement

18. Reconnect all connectors.

19. Turn the ignition switch to ON (II).

20. Reset the PCM with the HDS.

21. Do the PCM idle learn procedure. PCM Idle Learn Procedure

22. Check for Pending or Confirmed DTCs with the HDS.

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

NO - Troubleshooting is complete. If any other Pending or Confirmed 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, PCM Update or substitute a known-good PCM. Reading and Clearing Diagnostic Trouble Codes

25. Check for Pending or Confirmed DTCs with the HDS.

Is DTC P2135 indicated?
YES - Check for poor connections or loose terminals at the throttle body and the throttle actuator control module. If the PCM was updated, substitute a known-good PCM, Reading and Clearing Diagnostic Trouble Codes 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. Service and Repair If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.