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my Sierra doesn’t have any wiring to go from the car to the reverse switch on my T5 gearbox, from what I gather there should be a plug behind the battery that a small piece of loom connects to and goes down to the reverse switch on the gearbox?
The images I’ve attached are of a plug behind my battery that isn’t attached to anything and when bridging any of the pins together I can get my rear fog light to come on but not my reverse, does this sound like the correct plug?
Reverse switch wiring
