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your what? huh?This question needs more defining. What do you mean by dash lights? Are the idiot lights glowing when the key is in ON but not after you start it? A car runs off its alternator when the engine is running, and its battery if the alternator is incapable of supplying the necessary amperage. The battery *must* be good because the car started! Alternators are also very rarely bad when new so I wouldn't really worry about a bad alternator. If you're worried about it go get both your battery and alternator tested at any Advance Auto Parts or (shudder) autozone. Anyway, basically the answer is, it's not your battery and it's not your alternator since the car starts and continues to run. I would suspect faulty electrical wiring somewhere or possibly a bad relay module if your car has one. Also, if you could be more specific in your question it'd be easier to answer...

I had the same issue and the problem was the main feed fusible link was bad

the wire looked good but the link is inside the part where you can see I replaced it and bingo the dash panel worked properly

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โˆ™ 2010-10-29 15:24:33
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Q: What could be wrong if the dash lights on a 1985 Nissan 300ZX do not go on until you give it a few good high revs if the alternator is new?
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