| DTC P0340: | CMP Sensor A No Signal |
| 1. | Turn the ignition switch 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 P0340 indicated? YES - Go to 5. NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at CMP sensor A and the ECM/PCM.n |
| 5. | Turn the ignition switch OFF. |
| 6. | Disconnect CMP sensor A 3P connector. |
| 7. | Turn the ignition switch ON (II). |
| 8. | Measure voltage between CMP sensor A 3P connector terminal No. 3 and body ground.
Is there battery voltage? YES - Go to 9. NO - Repair open in the wire between CMP sensor A and the No. 3 ALTERNATOR (10 A) fuse then go to 18. |
| 9. | Measure voltage between CMP sensor A 3P connector terminal No. 1 and body ground.
Is there about 5 V? YES - Go to 10. NO - Go to 11. |
| 10. | Measure voltage between CMP sensor A 3P connector terminals No. 2 and No. 3.
Is there battery voltage? YES - Go to 16. NO - Repair open in the wire between CMP sensor A and G101, then go to 18. |
| 11. | Turn the ignition switch OFF. |
| 12. | Jump the SCS line with the HDS. |
| 13. | Disconnect ECM/PCM connector C (44P). |
| 14. | Check for continuity between ECM/PCM connector terminal C41 and body ground.
Is there continuity? YES - Repair short in the wire between the ECM/PCM (C41) and CMP sensor A, then go to 18. NO - Go to 15. |
| 15. | Check for continuity between CMP sensor A 3P connector terminal No. 1 and ECM/PCM connector terminal C41.
Is there continuity? YES - Go to 23. NO - Repair open in the wire between the ECM/PCM (C41) and CMP sensor A, then go to 18. |
| 16. | Turn the ignition switch OFF. |
| 17. | Replace CMP sensor A. |
| 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 P0340 is indicated, check for poor connections or loose terminals at CMP sensor A 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 P0340 is indicated, check for poor connections or loose terminals at CMP sensor A 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 |