Troubleshooting Hints

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS
1. Check Fuse 11 by operating the Horn.
2. Check for mechanical binds in the Door Lock System.
3. If one or more of the Door Lock Motors do not operate properly but the other Door Lock Motors function normally, check the wiring to the motors. If the wiring is OK, replace the motor.
4. If Fuse 11 blows when a power Door Lock Switch is activated, check CKT 194, CKT 195, Door Unlock Module and Multi-function Alarm Module for a short to ground.
5. If a motor's internal circuit breaker trips, it will not reset until voltage is removed from the motor.
6. If the Circuit Breaker 15 trips when a Power Door Lock Switch is activated, check CKT 295 and CKT 294 for a short to ground.
7. If Electronic PRNDL does not operate, Refer to Instrument Panel, Gauges and Warning Indicators. Instrument Panel, Gauges and Warning Indicators
8. If LH Front Door Lock is the only inoperative lock, and the vehicle is equipped with the Keyless Entry Feature, refer to Keyless Entry for diagnosis.

NOTE:
^ Automatic Door Lock feature is controlled by the Multi-function Alarm Module. Verify that all chime alarms operate (Refer to Instrument Panel Gages and Warning Devices) and that the Illuminated Entry feature (Refer Lighting and Horn) operates before diagnosing any Automatic Door Lock problems. Instrument Panel, Gauges and Warning Indicators Lighting and Horns
^ Refer to Instrument Panel, Gauges and Warning Indicators for Multi-function Alarm Module access. Instrument Panel, Gauges and Warning Indicators
^ Refer to Doors, Hood and Trunk for door access.
^ Refer to System Diagnosis. System Diagnosis