P0662
DTC P0662: IMT Valve Position Sensor Circuit High Voltage1. Reset the ECM/PCM.
2. Turn the ignition switch ON (II).
Is DTC P0662 indicated?
YES - Go to step 3.
NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the IMT valve position sensor and the ECM/PCM.
3. Turn the ignition switch OFF.
4. Disconnect the IMT valve position sensor 3P connector.
5. Turn the ignition switch ON (II).
6. At the wire harness side, measure voltage between IMT valve position sensor 3P connector terminals No. 1 and No. 3.
Is there about 5 V?
YES - Go to step 12.
NO - Go to step 7.
7. Turn the ignition switch OFF.
8. Jump the SCS line with the HDS.
9. Disconnect ECM/PCM connector A (31P).
10. Connect IMT valve position sensor 3P connector terminal No. 3 to body ground with a jumper wire.
11. Check for continuity between ECM/PCM connector terminal A24 and body ground.
Is there continuity?
YES - Go to step 18.
NO - Repair open in the wire between the ECM/PCM (A24) and the IMT valve position sensor, then go to step 13.
12. Replace the IMT valve position sensor.
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.
17. Check for Temporary DTCs or DTCs with the HDS.
Are any Temporary DTCs or DTCs indicated?
YES - If DTC P0662 is indicated, check for poor connections or loose terminals at the IMT valve position sensor 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.
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 P0662 is indicated, check for poor connections or loose terminals at the IMT valve position sensor 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.