Door locks, passenger side switch only unlocked?

1992 CHEVROLET SILVERADO
168 MILES • 5.7L • V8 • 4WD • AUTOMATIC
Avatar
HAWAUKEY3
  • MEMBER
  • 2 POSTS
The driver's side door lock switch both locks and unlocks passenger side switch only unlocked. Grounds are good it's getting power.
Oct 23, 2022 at 8:27 AM
Advertisement
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,267 POSTS
This happens when the door lock switch on the passenger's side goes out, but to be sure you can test the connection by following this guide and I have included the door lock wiring diagrams in the images below so you can see how it works and which wires to test.

https://www.2carpros.com/articles/how-to-check-wiring

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem.
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Oct 24, 2022 at 4:34 AM
Avatar
HAWAUKEY3
  • MEMBER
  • 2 POSTS
It's not the switch. I have two brand new switches that work on the driver's side for both lock and unlock and soon as I put them on the passenger side it only unlocks.
Oct 25, 2022 at 5:39 AM
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,267 POSTS
It sounds like a broken wire at the door jamb which is common. Use the wiring diagrams above to test the connections and repair the wire as needed.
Oct 26, 2022 at 3:16 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.