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Thread: Monitor+relay+Acc

  1. #1
    Constant Bitrate
    Join Date
    Dec 2006
    Posts
    127

    Monitor+relay+Acc

    How can I wire a 12v relay to the ACC to turn off the monitor? I have the monitor hookup to the M4 yellow and black.

    Because when I go in a store and I hit the override switch the monitor stays on…and sometimes I for get to turn it off when I get out of the car.

    Thanks

  2. #2
    Raw Wave
    Join Date
    Nov 2009
    Posts
    2,119
    A plain SPST (on-off) relay.

    The input +12V power for the monitor to relay #30.
    +12V power to the monitor from #87.

    +12V from ACC to #86.
    Ground to #85.

  3. #3
    Constant Bitrate
    Join Date
    Dec 2006
    Posts
    127
    Thanks

    So like this


  4. #4
    Raw Wave
    Join Date
    Nov 2009
    Posts
    2,119
    Assuming "PC" is the power source (+12V or whatever) for the monitor, then yes.

  5. #5
    Constant Bitrate
    Join Date
    Dec 2006
    Posts
    127
    Thanks OldSpark...

    I will give it a try this weekend.

  6. #6
    Constant Bitrate
    Join Date
    Dec 2006
    Posts
    127
    It works...

    What I did was...run both ground the monitor and pin 85 to the M4 ground and pin 30 to the M4 yellow 12v. That way the pc still give clean power to the monitor and not the car power.

    Thanks OldSpark for helping me out on that.....

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