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020 Reverse switch wiring

Write up courtesy of Brian, of BrokeVW.com

Reverse Switch Swap Wiring

Here are pics you might find useful if you have swapped a trans into your car, and the reverse light wiring plugs don't match any more.

If your car originally used a trans with a 2-terminal reverse switch, and you stuck in a trans with a big switch with a bunch of blade terminals on it, you'll need to use the terminals shown here, terminals # 2 and #8. Which wire to which terminal isn't important, it just completes the circuit for the lights between #2 and #8...

If you have a large switch like shown above, but it doesn't have a terminal #2, and just has terminals 1, 4, 5, and 8 (in the 4 corners)....then you should use terminals #1 and #8.

These pins are pushed in by a small bump on the selector assembly. There is continuity between the terminals when the pin is pressed in.

The pins in the pic are labeled for the gear lever position that results in that pin being pressed in.

If your car originally had one of these big switch trans (and that means you have an upshift light in the instrument cluster) and you swapped in a trans with the smaller 2-terminal switch in it, then peel the rubber back on the wiring harness on the car, and look at the numbers on the top of the plastic under the rubber covering....look for the ones labeled #2 and #8, and use those on the trans switch.

In this pic, this particular plug used these wire colors, but your harness might have different color wires, a different number of wires, or the #2 and #8 wires might not be in the same place as shown here, so peel the rubber to double check.

In the case that you don't have a #2 wire, then use wires #1 and #8.

Write up courtesy of Brian, of BrokeVW.com

Contributed By: Sparky on Monday, May 26 [ Rate this tutorial ]

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