What is a wishbone harness?
What is a wishbone harness? You have what is called a wishbone harness like # A20WB. This type of harness take the running light circuit and splits it at the trailer connector so that you do not have to run a jumper wire from one tail light to the other. The green/brown wire is the running light circuit for the passenger side. Why is my left turn signal light not flashing? Operate the switch to turn the left turn signal light. Back probe the wire that supplies power to the switch; the test light should flash. If the test light...