I'm rewiring a '87 Regal and need this as well. I wouldn't mind having a whole wiring diagram. I'm using a universal harness with headlight relays. I attempted to test the switch but it appears to be bad but I would like to start with a wiring a diagram to confirm. If I find something first I will share it here.Can anyone help with a diagram for a headlight switch for a 86 Buick Regal limited. I am in the process of putting in a new wiring kit. And need help connecting new wiring into headlight switch. Any help is appreciated.
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