DTC Troubleshooting

DTC Troubleshooting: P0222, P0222

DTC P0222:

TP Sensor B Circuit Low Voltage

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

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

2. Clear the DTC with the HDS.

3. Check TP SENSOR B in the DATA LIST with the HDS.

Is there about 0.3 V or less?

YES -

Go to step 4.

NO -

Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the throttle body and the ECM/PCM.

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

Are DTC P0122 and P0222 indicated at the same time?

YES -

Go to step 10.

NO -

Go to step 5.

5. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

6. Disconnect the throttle body 6P connector.

7. Jump the SCS line with the HDS.

8. Disconnect ECM/PCM connector B (49P).

9. Check for continuity between throttle body 6P connector terminal No. 3 and body ground.





Is there continuity?

YES -

Repair short in the wire between the throttle body and the ECM/PCM (B26), then go to step 18.

NO -

Go to step 23.

10. Measure the voltage between throttle body 6P connector terminal No. 2 and body ground.





Is there about 5 V?

YES -

Go to step 16.

NO -

Go to step 11.

11. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

12. Jump the SCS line with the HDS.

13. Disconnect ECM/PCM connector B (49P).

14. Disconnect the throttle body 6P connector.

15. Check for continuity between ECM/PCM connector terminal B18 and throttle body 6P connector terminal No. 2.





Is there continuity?

YES -

Go to step 23.

NO -

Repair open in the wire between the throttle body and the ECM/PCM (B18), then go to step 18.

16. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

17. Replace the throttle body Removal and Replacement.

18. Reconnect all connectors.

19. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

20. Reset the ECM/PCM with the HDS.

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

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

Is DTC P0222 indicated?

YES -

Check for poor connections or loose terminals at the throttle body and the ECM/PCM, 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 ECM/PCM if it does not have the latest software ECM/PCM Update, or substitute a known-good ECM/PCM.

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

Is DTC P0222 indicated?

YES -

Check for poor connections or loose terminals at the throttle body and the ECM/PCM, then go to step 1. If the ECM/PCM was updated, substitute a known-good ECM/PCM, then recheck. If the ECM/PCM was substituted, go to step 1.

NO -

If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM Service and Repair. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.