Power dock locks not working.

Falcon20x

Registered User
Hello,

I have a 1993 SC.
Everything works on the car except for the power door locks and the seat belt sign will not go out on the cluster. The previous owner let the car seat outside for a few years with a broken passenger window.

I checked the voltage and switches functionality. Everything is in working condition. I also checked the passenger door power lock to make sure it works, it does. The power gets through the switch but does not seem to get to the power lock on either side. I was able to measure 12v at power motor plug by taking the ground of the door not the other pin. I got 12volts regardless if I hit lock or unlocked pin the switch.
I believe the issue is a ground problem around the S499 or S 498. The manual says it is window regulator harness located below the right door sill, but I can not find it.I thought their would be a relay of some kind but I guess not.

any thoughts?
IMG_0884.JPG
 
Last edited:
Back
Top