Car model and year: 2005 Chevrolet Corvette M6 base Symptom: Brake lights are not working. Including the 3rd brake light. GM scanner : I do have an Autel 519. GM Tech II scanner (is a must tool) What I tried to do: Replaced the brake light switch. Swapped back in the original. Still no brake lights. What should do next? (From experienced user) When changing the BPS, did you do a relearn with a Tech II to calibrate it with the BCM. When you have the tech II on the car to do the BPS relearn, did you go into BCM data after to see if the pedal was signaling the BCM to turn on the brake lights? Hence problem could be BPS not calibrated correctly to start with at the BCM, or could be the wiring/rear bumper void connector, or just rear grounding the problem instead. And if you don’t own a Tech II ( at least clone) to work on the car, it’s your first mistake, since even basic items like brake pedal sensor replacement have to be calibrated to the BCM via the