Question about 1984 Nissan 300ZX

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I have a '81 280zx NA. When I turn the car off the dash door, brake, fuel, and clock lights don't turn off. The car was hacked by the previous owner. I've made attempts to correct many of the mistakes made. The car has an aftermarket radio and I think the issue may be there but is there anywhere else I can look? This site wont allow me to choose my correct car information.

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  • Nissan Master
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Jonj1138: BINGO! I believe you have probably hit on the correct source of the problem. Who ever installed the radio, probably looked for the wire which supplied power when the lights were on which should be the red wire with the blue tracer. They have somehow tied the unswitched circuit into the lighting circuit. They may have even picked off of the the cigarette lighter.Then they tied it into an Unswitched power source, not thinking of the feedback.
Unswitched power sources: a red with a white tracer and a red with a black tracer. I believe I have the correct colors It's been years since I have worked in a ZX ans I don't have a SCHEMATIC handy. I am doing this from memory. There may be two wire connected to the Unswitched power supply. From your stereo, you will have a Yellow wire. This is the Memory wire. Leave it hooked up to the Unswitched power supply. The other wire needs to be disconnected and if it was hooked up to light the for the radio, hook it up to the red with blue tracer. That will be the switched circuit for the lighting.

I hope that this will solve your problem. Good Luck!

Posted on Jul 23, 2009

  • Bill Hackett Jun 16, 2011

    correction on power wire. Blue with white tracer.

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