Troubleshooting Rear Door Lock Stops Working After Pop & Lock Custom Tailgate Lock PAL8120Q Install  

Question:

Expert Reply:

It sounds as if you used the wrong wires when installing the part # PAL8120Q. There can be some color variance with the wires you would need to use. Sometimes the correct wire to use is blue and tan.

I would first try removing the # PAL8120Q to see if that allows the locks to start working again and then retest the wires to be sure you are getting the correct circuits.

You may need to check for blown fuses under the hood of your truck as well.

To ensure you are locating the proper wires, I recommend using a test light like # PTW2993. Once you find the wires that you think may be correct, probe the wire with the test light and activate the door locks.

I attached an install video that shows the lock being installed on a similar Silverado as yours as well.

expert reply by: Jameson C

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