Finding Stoplight Circuit Switch for 2019 Chevy Express Van for Brake Controller
Updated 12/15/2025 | Published 11/05/2024
Question:
I watched your 2019 Chevy Express brake controller video and need some clarification on which blue wire to connect to on the pink connector in the body controller on the passenger seat side of the dash. The video reference a light blue wire, but i have a dark blue and a light blue greyish. Trying to connect for the brake controller brake pedal circuit. Can you help?
asked by: Blake G
Expert Reply:
Hey Blake, so sometimes wiring colors can change or not be consistent on a vehicle so if what you are seeing is different your safest choice would be to go with a circuit tester like the part # PTW2993 to test them for voltage to find one that is only active when the brakes are applied.
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on Trailer Brake Controller
Jameson C.
12/15/2025
Hey Blake, did using the circuit tester help you find the correct brake pedal circuit wire on your Chevy Express? Knowing which one worked could really help others sorting through the same wiring colors.