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Brake Switch Wiring Diagram?


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I'm adding an electronic brake controler to my '99 RX300, and it requires a tap into the 'cold' side of the switch. Easy enough if there are only 2 wires ;)

Bue of course there are 4 wires in the bundle. I guess I could just tap each one and do a voltmeter test, but maybe someone knows the answer?


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