Question about 1990 Nissan 300ZX
Check fuses first... that is a quick, easy, and very possible problem and luckily it isn't hard to do.
grab a volt meter or DMM and check to see if you have voltage coming in and then as you press check voltage on the rest of the plug on the switches. if you have nothing here is what i recommend.
remove the actual master switch and carefully take it apart down to the actual contacts (before very cautious not to break any of the plastic clips and watch for springs and small rollers inside the switch). look for carbon build up on the switch contacts and gently clean them with a small piece of fine grit sand paper. once all contacts are clean put everything back together and plug back into vehicle to test. repeat same process for passenger side if you are having issues on that side as well.
this is a standard process i go through anytime i buy an older vehicle.
Posted on Aug 18, 2009
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Posted on Jan 02, 2017
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