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Intermittent starting problems and mystery wire

15K views 24 replies 8 participants last post by  kennethpatterson858  
Good luck on your starting issue. I have it too but only happens once every few months. I think i tried swapping the relay with another one from fuelpump or fog light (not with a new one) but still happening. Also did a new battery and checked yellow wire.

Also i didnt see anyone call out those mystery wires, are the factory leads for a brake controller. They go back to your 7pin plug. Its typical of manufacturers to just tape off the wires and leave them stuffed under the dash.
Looks like in your case, previous owner spliced in the connector that matches his controller.