P0118
DTC P0118: ECT Sensor 1 Circuit High Voltage (2006 model)NOTE:
- Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.
- Information marked with an asterisk(*) applies to 2004-2005 models.
- Information marked with double asterisk(**) applies to 2006 model.
1. Turn the ignition switch ON (II).
2. Check the ECT SENSOR (1) in the DATA LIST with the HDS.
Is about - 40 degree F ( -40 degree C) or less, or 4.90 V or more indicated?
YES - Go to step 3.
NO - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the ECT sensor*/ECT sensor 1* and the ECM/PCM.
3. Turn the ignition switch OFF.
4. Disconnect the ECT sensor*/ECT sensor 1** 2P connector.
5. Connect ECT sensor*/ECT sensor 1** 2P connector terminals No. 1 and No. 2 with a jumper wire.
6. Turn the ignition switch ON (II).
7. Check the ECT SENSOR (1) in the DATA LIST with the HDS.
Is about - 40 degree F ( -40 degree C) or less, or 4.90 V or more indicated?
YES - Go to step 8.
NO - Go to step 16.
8. Turn the ignition switch OFF.
9. Remove the jumper wire from the ECT sensor*/ECT sensor 1** 2P connector.
10. Turn the ignition switch ON (II), measure voltage between ECT sensor*/ECT sensor 1** 2P connector terminal No. 1 and body ground.
Is there about 5 V?
YES - Go to step 11.
NO - Go to step 15.
11. Turn the ignition switch OFF, then jump the SCS line with the HDS.
12. Disconnect ECM/PCM connector A (31P).
13. Connect ECT sensor*/ECT sensor 1** 2P connector terminal No. 2 to body ground with a jumper wire.
14. Check for continuity between ECM/PCM connector terminal A23 and body ground.
Is there continuity?
YES - Go to step 23.
NO - Repair open in the wire between the ECM/PCM (A23) and the ECT sensor*/ECT sensor 1*, then go to step 18.
15. Measure voltage between ECM/PCM connector terminal B8 and body ground.
Is there about 5 V?
YES - Repair open in the wire between the ECM/PCM (B8) and the ECT sensor*/ECT sensor 1*, then go to step 18.
NO - Go to step 23.
16. Turn the ignition switch OFF.
17. Replace the ECT sensor*/ECT sensor 1**.
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 P0118 is indicated, check for poor connections or loose terminals at the ECT sensor*/ECT sensor 1** and the ECM/PCM, then go to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.
NO - Troubleshooting is complete.
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 P0118 is indicated, check for poor connections or loose terminals at the ECT sensor*/ECT sensor 1** and the ECM/PCM, then go to step 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.