I bought a 1987 Oldsmobile 98 Regancy, 3800 V-6 engine with 116,00 miles. There are no dash lights when I turn on the headlight switch. I have voltage coming out of the interior lamp control switch, I also replaced the Interior lamp module by the control box on passenger side. I have voltage coming into the dash on brown wire when the lights are turned. Any ideas on this subject??
Get yourself a wiring diagram(follow link to left) and trace both Positive and Negative(ground) if the module is getting both power and ground…. check the bulbs, if you are not getting power and ground to bulbs, but are to the cluster… the cluster may be bad. If no power to cluster, the head light Dimmer may be bad.
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