Hello,
im pulling my hair out over this issue.
the brake lights stay permanently on when the ignition is on, and flashes a coil light on the dash because of it.
I've changed the switch and no solution, i then found a wiring diagram that shows pin 3 and everything on that associated circuit should have 12v.
i have tested from the switch plug to the ecu, switch plug to the abs, and switch plug to the BCM.
all have continuity.
if i check VCDS, it shows at “0” under the ABS measuring block channel 001 (brake lights switch) if i apply 12v to the circuit it then shows as activated, regardless of what i do with the brake peddle.
im pulling my hair out over this issue.
the brake lights stay permanently on when the ignition is on, and flashes a coil light on the dash because of it.
I've changed the switch and no solution, i then found a wiring diagram that shows pin 3 and everything on that associated circuit should have 12v.
i have tested from the switch plug to the ecu, switch plug to the abs, and switch plug to the BCM.
all have continuity.
if i check VCDS, it shows at “0” under the ABS measuring block channel 001 (brake lights switch) if i apply 12v to the circuit it then shows as activated, regardless of what i do with the brake peddle.