Where To Find Brake Light Circuit for Installing Brake Controller in 2012 Chevy Equinox

Question:

Can you tell me the color of the wire on the brake light switch that is energized by the brake light switch on my 2012 Equinox

asked by: Monty R

Expert Reply:

When installing a brake controller in your 2012 Chevy Equinox you will need to access the stoplight circuit from the BCM.

As you are sitting in the driver's seat, the BCM (Body Control Module) is located under the dash above where your left knee would be. The module (think of it as a junction box) will have 7 different wire connectors that plug into it. Look for the black connector (all the connectors are different colors) that has 26 different slots for wires to insert into. In wire position # 11, there will be a white wire that carries the brake stoplight signal. Use the quick connector to tap the red brake controller wire into this circuit, and you will be good to go. Be sure to use a circuit tester like part # PTW2993 to confirm that the white wire only shows voltage when the brake pedal is pressed.

I have edited a diagram showing the location of the BCM, as well as the # 11 wire position in the black connector.

expert reply by: Jameson C