Electric door locks do not lock or unlock

2001 CHEVROLET SILVERADO
160,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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DAVIDTERRY1958
  • MEMBER
  • 1 POST
The electric door locks do not work. I have to manually lock the doors. I checked the fuses and found one blown but that did not solve any problem. Power windows and mirrors work fine from the controls on the driver side. But, the door locks do not work on either side. I am not sure which wires go to the door lock and unlock. If I can get some assistance with troubleshooting it would be greatly appreciated
Mar 31, 2017 at 7:41 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,588 POSTS
Hello,

It looks like there are a few relays that run the system, also I would check the main switch becasue all of the locks run through it. Here are the door lock wiring diagrams so you can do some testing.

Here is a guide to help you do the testing.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

and

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Please run some tests and get back to us so we can continue helping you.

Best, Ken
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Apr 3, 2017 at 5:18 AM
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