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  View original topic: wiring harness question - what's this wire for?
Kevin1957 Mon Sep 15, 2025 1:47 pm

I finished installing a new wiring harness per manufacturer's instructions. I have a "left over" wire, the gray one in the photo. It exits the engine compartment on the driver's side. What is this wire for? Did I overlook something in the instructions? Thanks.

Kevin1957 Mon Sep 15, 2025 1:48 pm

Sorry, the wire is more black than gray.

jeffrey8164 Mon Sep 15, 2025 2:32 pm

Where does it land on the other end?
Whose loom is it? Did it come with a diagram?
Grey is not a normal color.
If I had to guess, I’d say coil +.
I could be wrong and often am.

runamoc Mon Sep 15, 2025 4:16 pm

if that wire came in your new wiring harness..... :cry:

sputnick60 Tue Sep 16, 2025 2:40 am

runamoc wrote: if that wire came in your new wiring harness..... :cry:
Yeah and that crimp on the regulator wire kinda lacks quality too.

Nicholas

runamoc Tue Sep 16, 2025 7:07 am

sputnick60 wrote: runamoc wrote: if that wire came in your new wiring harness..... :cry:
Yeah and that crimp on the regulator wire kinda lacks quality too.
Nicholas
kinda lacking in quality of professionalism too. Came 'dirty' and painted with over spray. :?

Teeroy Tue Sep 16, 2025 9:48 am

Grey wire should go between rear window to a relay in engine compartment for rear window defroster, pull the driver side quarter panel trim panel to verify



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