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How to troubleshoot power locks with low voltage

bigalpha

Moderator
Location
Tucson, AZ
1992, AW4

As stated, I'm getting only 8-9V at the connectors of each of the doors. The window connectors are getting ~12V.

I checked the wiring loom in the driver door and repaired two wires that were missing insulation and experienced no change in voltage supply. I back-probed the orange connecter in the driver foot well and also only saw ~8V so I'm assuming it's more of a general issue and not a localized issue.

What's the next step?

Also, if you have wiring diagrams for the locks and associated wiring, that'd be great.
 
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