Component Tests and General Diagnostics

Try the following checks before performing other diagnosis.
1. Check PWR ACC Circuit Breaker.
2. Check CTSY Fuse by operating the Interior Lights.
3. Check for mechanical binds in the Door Lock System.
4. 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.
5. If CTSY Fuse blows when a power Door Lock Switch is activated, check CKT 194, CKT 195 and Multi-function Alarm Module for a short to ground.
6. If a motor's internal circuit breaker trips, it will not reset until voltage is removed from the motor.
7. If PWR ACC Circuit Breaker trips when a power Door Lock Switch is activated, check CKT 295 and CKT 294 for a short to ground.