DTC Troubleshooting: P2135 (7) (K20Z: M/T)

DTC Troubleshooting: P2135 (7)

DTC P2135:  TP Sensor A/B Voltage Incorrect Correlation




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 5.


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


5.Turn the ignition switch OFF.

6.Disconnect the intake air 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 16.


NO - Go to 10.

10.Turn the ignition switch OFF.

11.Jump the SCS line with the HDS.

12.Disconnect ECM/PCM connector C (44P).

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

 

Is there continuity?


YES - Go to 14.


NO - Go to 23.

14.Disconnect the throttle body 6P connector.

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

 

Is there continuity?


YES - Repair short in the wires between the ECM/PCM C20 (TPSA line) and the C21 (TPSB line), then go to 18.


NO - Go to 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 ECM/PCM with the HDS.

21.Do the ECM/PCM idle learn procedure.

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

Are any Temporary DTCs or DTCs indicated?


YES - If DTC P2135 is indicated, check for poor connections or loose terminals at the throttle body and the ECM/PCM, then go to 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.


NO - Troubleshooting is complete.n

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

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

Are any Temporary DTCs or DTCs indicated?


YES - If DTC P2135 is indicated, check for poor connections or loose terminals at the throttle body and the ECM/PCM, then go to 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.


NO - If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM.n