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Thread: Park safety switch wiring on 78 K15

  1. #1
    Fuel Injected!
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    Park safety switch wiring on 78 K15

    I have purple and purple/white in my park safety switch plug. My 78 wiring manual says this should be circuit 5 with a yellow wire. Perhaps it was switched. But anyhow, I'm not sure which of the two wires needs to be tapped for the wire from ECM B10.

    Thanks.

  2. #2
    Fuel Injected!
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    Not sure but if you have a multi-meter with the sharp tips you could stick and see which wire grounds when in park or neutral.

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