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Thread: Warning Lights Out Except Oil

  1. #1
    Member Midnight Specialist's Avatar
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    Warning Lights Out Except Oil

    Over the summer I replaced all the bulbs in the dash with LEDs and put a new incandescent for the battery. Before I left for an overseas deployment the lights all worked. I recently returned and now only the oil light will illuminate. I tested the battery with a multimeter and it appears to be charging. Does anyone have any ideas what this could be? https://youtu.be/wpJinnBJfeY
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    Last edited by Midnight Specialist; 01-25-2021 at 03:06 PM.

  2. #2
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    Update. I have seen the batter light flicker once or twice when the engine didnít all the way turn over. Also, the gas light flickers when I turn the key to the position 2. https://youtu.be/hKpWSMgKfkc


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  3. #3
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    Quote Originally Posted by Midnight Specialist View Post
    Over the summer I replaced all the bulbs in the dash with LEDs and put a new incandescent for the battery. Before I left for an overseas deployment the lights all worked. I recently returned and now only the oil light will illuminate. I tested the battery with a multimeter and it appears to be charging. Does anyone have any ideas what this could be? https://youtu.be/wpJinnBJfeY
    Are you sure the incandescent is the same? The system is picky about the resistance.

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  4. #4
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    I hope so. I got it from DMC and it did work when I put the dash back together.

  5. #5
    Delorean Guru
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    A possible bad connection between the flexible PCB and the plug that goes into it. Or a missing ground.
    David Teitelbaum

  6. #6
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    being the new Delorean owner that I am, what is the flexible PCB? and would that be a bad ground on the alternator?

  7. #7
    Delorean Guru
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    The flexible PCB is that thing that on the back of the binnacle (instrument cluster) that all of the lights and gauges are connected to. The ground I am referring to is the main ground for the IP on the front, left radiator support, frame end, with all of the black wires.
    David Teitelbaum

  8. #8
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    Thanks David. I think you might be on to something there with the ground. When I was away the car overheated and had to have a new radiator and new fans put in.

  9. #9
    Administrator Ron's Avatar
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    That ground may be causing some of the problems. But the oil light and battery light have their own, separate, grounds. Since they use the same power source and the oil light works while the battery light does not, I'd try grounding the NY (brown with yellow stripe) wire at the alternator with the key on. If the battery light does not come on, I'd retest the alternator, then pull the binnacle and check out the white plug connections (and bulb).
    (The fuel, brake, seat belt and door ajar lights all use separate, grounds.)

  10. #10
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    Thanks Ron. I have a new alternator coming in from Delorean Industries as I still have the factory Ducillier unit. The bulb shouldn't be out as I have seen it flicker yesterday.

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