Gm Power Door Lock Troubleshooting

However vehicles without door lock cylinders will not be able to lock or unlock the doors until power is restored.

Gm power door lock troubleshooting.

If all of the door locks are inoperative start your diagnosis at the fuse box. An inoperative power door lock can be caused by the switch solenoid wiring problem or mechanical problem within the linkage of the affected door. If the power door lock relay fails it will cut off power to the entire power door lock system and may cause them to not function correctly. Inspect the fuse that protects the door lock circuit to ensure it is not blown.

Gmc yukon power door lock actuators may fail 236 reports. You should see the voltage polarity toggle with each switch activation. Http amzn to 2nxjdrw gm tsb 032703 passenger door module recall for remote keyless entry door locks and power window video r. Learn about this problem why it occurs and how to fix it.

Power door locks that do not function are another common symptom for a problem with the door lock relay.