Hi all, my ABS light is always on, paper clipped the obd-1 for abs and got code 37 - TCC brake on. My truck is a 1995 6.5 TD dually with manual 5 speed trans. Can clear code with clip and holding accel and brake to floor but abs light come back on soon after running,,,,any ideas where to look first, going to check and clean grounds then ???

Adrian.

Pull the brake pedal up against the stop - DTC should go away - non-adjustable brake switch is cratering

My truck does the same, some one told me that there is a sensor inside the calipers that get full of brake dust, I have not cleaned mine but maybe you could try, hope that helps.