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Thread: Handbrake switch wiring

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    Regular Member StephNET's Avatar
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    Default Handbrake switch wiring

    Hi All,

    Could anyone tell me the wiring colours for the handbrake switch. I need to add a relay that is controlled off of the handbrake switch. (so that the relay is switched on when the handbrake is released). Does the handbrake switch open the circuit when the handbrake is applied or when its released?

    Any advice would be greatly appreciated!

    Thanks

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    Regular Member lee gsi's Avatar
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    I think there is only 1 wire which goes to earth when you put the handbrake on.

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    as i dont know the details of your car i have based it on my own car which i am sure will be the same

    There is a single pin plug that goes to the switch. the wire is brown with white trace. this wire goes to the Body control Module via pin 55 on connector XC31

    As far as I can see the switch is open when hand brake is off and closed when hand brake is on. although could easily be the other way around.

    I would be carefull what you are wiring up to it as it does go to the BCM, I would personally run an extra wire out of the switch with a diode in line to stop anything from back feeding down the wire to the BCM.

    You can easily test with a multi meter.

    Hope that is of some help.

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    Regular Member rushy's Avatar
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    Quote Originally Posted by jamesworts View Post
    as i dont know the details of your car i have based it on my own car which i am sure will be the same
    PRICELESS


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    At least i didnt make assumptions on a car without first checking the details of the car. not hard really!

    Don't need to ask as I am fairly confident that they are all the same or very similar.

    hence my comment about it being based on my own car and not everyone else!!! KENP and BIG SIG! so could be incorrect!
    Last edited by jamesworts; 28th May 2011 at 05:41. Reason: Just for the sake of it.

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    I don't need any more friends! 2 is enough!

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