P0801

DTC P0801: Problem in Inhibitor Solenoid Circuit

NOTE:
^ Record all freeze data and review General Troubleshooting Information before you troubleshoot.
^ This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.

1. Turn the ignition switch OFF.
2. Disconnect the solenoid harness connector (8P).





3. Measure the resistance between solenoid harness connector (8P) terminals No. 5 and body ground.
Is the resistance 11.7 - 21.0 ohms?
YES- Go to step 4.
NO- Remove the lower valve body, and check for an open or a short in the solenoid harness. If the wire is OK, replace the inhibitor solenoid.
4. Disconnect TCM connector B (22P).





5. Check for continuity between TCM connector terminal B1 and body ground.
Is there continuity?
YES- Repair short to ground in the wire between TCM connector terminal B1 and the solenoid harness connector (8P).
NO- Go to step 6.
6. Connect the solenoid harness connector (8P).





7. Measure the resistance between TCM connector terminal B1 and body ground.
Is there 11.7 - 21.0 ohms?
YES- Check for loose terminal fit in the TCM connectors. If necessary, substitute a known-good TCM, then recheck. If the symptom/indication goes away with a known-good TCM, replace the original TCM.
NO- Repair open in the wire between TCM connector terminal B1 and the solenoid harness connector (8P).