Component Tests and General Diagnostics
1. Check the PWR ACC Circuit Breaker.2. Check the CTSY Fuse by visual inspection.
3. Check for mechanical binds in the Door Lock System.
4. If one of the Door Lock Motors does not operate properly, but the other Door Lock Motor functions normally, check the wiring to the suspect motor. If the wiring is correct, check for a poor connection. If OK, replace the motor.
5. Check that ground G305 is clean and tight.