Question about 2006 Jeep Liberty

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06 Liberty light switch wiring

Hello, can you help me identify which wire is the “cold” side of the brake light switch?

I am trying to hook up an Even Brake Towinsystem and need to tap that wire.

Thank you,

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  • Dtenc2 Oct 09, 2008

    Thank you,

    I finally went to my Jeep dealer and had them enter teh VIN# and llok it up on their system.

    Thank you,




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You usually have 2 wires off the brake switch.
With a test light you should have 12 volts (test light lit) on one wire.
The other wire will have 12 Volts or light the test light when you step on the brake pedal.
If there more than 2 wires, just check which wire has 12 volts when you step on the brake pedal.

Posted on Oct 06, 2008


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Run two wires to the battery:
White - Ground
Black - Power
Blue - Run to Electric Brakes at the Rear Plug
Red - Run to cold side of brake switch off of the brake pedal (using a test light to find the cold side)
Note: Always wire the red wire to the heaviest gauge wire when testing cold side of brake switch.

You can view more info here.

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