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Accessing Taillight Wiring Harness to Install Taillight Diodes for Flat Towing 1991 Chevy S-10


Got your Tail Light Isolating Diode System with Wiring Harness. Any tips on where to find a good connection spot on my 91 S-10 pickup? Thanks, Jim


Expert Reply:

The best place to access the wiring harness feeding the taillight assemblies is along the driver's side frame rail alongside the spare tire. You can use a circuit tester like part # PTW2993 and probe the wires in the harness to determine their function.

I've linked you to an install video, showing the diodes being installed on a Chevy Cavalier. Obviously, the vehicle is different, but the video will give you a good idea of what the install involves.

expert reply by:
Mike L

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