If the high mount brake light is working, it could be a fault with the multi-function switch.
If the high mount break light is not working, at brake switch check for battery voltage at the Light Green/Red wire. If battery voltag is available, depress the brake pedal and test the Dark Green wire for battery voltage. If voltage is available, test the voltage at fuse # 39 (10 A) in junction box at left side of dash. If fuse is ok, test the Light Green wire to multifunction switch for battery voltage when brake pedal is depressed.
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Sunday, October 28th, 2012 AT 9:32 AM