P0117
DTC P0117: ECT Sensor/ECT Sensor 1 Circuit Low Voltage1. Turn the ignition switch ON (II).
2. Check the ECT SENSOR (1) in the DATA LIST with the HDS.
Is about 356 degree F (180 degree C) or more, or 0.08 V or less indicated?
YES - Go to step 3.
NO - Intermittent failure, 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. Turn the ignition switch ON (II).
6. Check the ECT SENSOR (1) in the DATA LIST with the HDS.
Is about 356 degree F (180 degree C) or more, or 0.08 V or less indicated?
YES - Go to step 7.
NO - Go to step 11.
7. Turn the ignition switch OFF.
8. Jump the SCS line with the HDS.
9. Disconnect ECM/PCM connector B (24P).
10. Check for continuity between ECT sensor/ECT sensor 1 2P connector terminal No. 1 and body ground.
Is there continuity?
YES - Repair short in the wire between the ECT sensor/ECT sensor 1 and the ECM/PCM (B8), then go to step 13.
NO - Go to step 18.
11. Turn the ignition switch OFF.
12. Replace the ECT sensor/ECT sensor 1.
13. Reconnect all connectors.
14. Turn the ignition switch ON (II).
15. Reset the ECM/PCM with the HDS.
16. Do the ECM/PCM idle learn procedure. Programming and Relearning
17. Check for Temporary DTCs or DTCs with the HDS.
Are any Temporary DTCs or DTCs indicated?
YES - If DTC P0117 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 Tempterary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.
NO - Troubleshooting is complete.
18. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM.
19. Check for Temporary DTCs or DTCs with the HDS.
Are any Temporary DTCs or DTCs indicated?
YES - If DTC P0117 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