For 1990-2009 cars

Symptom | Procedure
--- | ---
The ignition key cannot be removed from the lock cylinder with the gear selector in PARK. | Lock Cylinder Can Be Removed Without Depressing Retainer
The gear selector does not shift out of PARK with the brake pedal depressed and the ignition switch in RUN. | Automatic Transmission Shift Lock Control Always On with Ignition in Run
The gear selector shifts out of PARK with the ignition switch in RUN and the brake pedal not depressed. | Automatic Transmission Shift Lock Control Inoperative
The gear selector shifts out of PARK with the ignition switch in OFF (with center console only) | Test CKT 275 for a short to battery voltage or for a faulty transaxle range switch. If OK, replace the automatic transaxle control.