DTC Troubleshooting

DTC Troubleshooting: P0351, P0352, P0353, P0354, P0355, P0356

DTC P0351: No. 1 Cylinder Ignition Coil Circuit Malfunction

DTC P0352: No. 2 Cylinder Ignition Coil Circuit Malfunction

DTC P0353: No. 3 Cylinder Ignition Coil Circuit Malfunction

DTC P0354: No. 4 Cylinder Ignition Coil Circuit Malfunction

DTC P0355: No. 5 Cylinder Ignition Coil Circuit Malfunction

DTC P0356: No. 6 Cylinder Ignition Coil Circuit Malfunction

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).

2. Clear the DTC with the HDS.

3. Start the engine.

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

Is DTC P0351, P0352, P0353, P0354, P0355, and/or P0356 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 ignition coil and the ECM/PCM.


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

6. Exchange the ignition coil from the problem cylinder with one from another cylinder.

7. Start the engine.

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

Is DTC indicated at the exchanged cylinder?
YES - Replace the faulty ignition coil Service and Repair, then go to step 27.

NO - Go to step 9.


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

10. Check the No. 13 IG COIL (15 A) fuse in the under-hood fuse/relay box.

Is the fuse OK?
YES - Go to step 11.

NO - Go to step 13.


11. Remove the ignition coil relay (A) from the under-hood fuse/relay box.

12. Test the ignition coil relay. Testing and Inspection

Is the relay OK?
YES - Go to step 16.

NO - Replace the ignition coil relay, then go to step 26.






13. Remove the ignition coil relay (A) from the under-hood fuse/relay box.

14. Disconnect all ignition coil 3P connectors.






15. Check for continuity between No. 1 ignition coil 3P connector terminal No. 3 and body ground.

Is there continuity?
YES - Repair short in the wire between the ignition coils and the ignition coil relay. Also replace the No. 13 IG COIL (15 A) fuse, then go to step 26.

NO - Check the under-hood fuse/relay box, and replace it if needed, Under-Hood Fuse/Relay Box Removal and Installation then go to step 26.






16. Reinstall the ignition coil relay.

17. Disconnect the ignition coil 3P connector from the problem cylinder.

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

19. Measure the voltage between ignition coil 3P connector terminal No. 3 of the problem cylinder and body ground (see table).





Is there battery voltage?
YES - Go to step 20.

NO - Repair open in the wire between the ignition coil and the ignition coil relay, then go to step 26.






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

21. Check for continuity between ignition coil 3P connector terminal No. 2 of the problem cylinder and body ground (see table).





Is there continuity?
YES - Go to step 22.

NO - Repair open in the wire between the ignition coil and G101, then go to step 26.






22. Jump the SCS line with the HDS.

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

24. Check for continuity between body ground and the ECM/PCM connector terminal (see table).





Is there continuity?
YES - Repair short in the wire between the ECM/PCM and the ignition coil, then go to step 26.

NO - Go to step 25.






25. Check for continuity between appropriate ignition coil 3P connector terminal No. 1 and the ECM/PCM connector terminal of the problem cylinder (see table).





Is there continuity?
YES - Go to step 32.

NO - Repair open in the wire between the ECM/PCM and the ignition coil, then go to step 26.










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

27. Reconnect all connectors.

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

29. Reset the ECM/PCM with the HDS.

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

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

Is DTC P0351, P0352, P0353, P0354, P0355, and/or P0356 indicated?
YES - Check for poor connections or loose terminals at the ignition coil and the ECM/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.


32. Reconnect all connectors.

33. Update the ECM/PCM if it does not have the latest software, ECM/PCM Update or substitute a known-good ECM/PCM. Initial Inspection and Diagnostic Overview

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

Is DTC P0351, P0352, P0353, P0354, P0355, and/or P0356 indicated?
YES - Check for poor connections or loose terminals at the ignition coil and the ECM/PCM. If the ECM/PCM was updated, substitute a known-good ECM/PCM, Initial Inspection and Diagnostic Overview 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 Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.