pokerman11

My ABS/TCC (or is it TCS) lights are on - my '98 Venture.

A few months ago I had the front end off, replacing worn bushings, on the driver side, so had most the parts off. Perhaps I screwed up the sensor or wiring, but the ABS system worked for a few weeks.

I just took the rotor off again to look at the ABS sensor. The wires seem okay but it looks like the sensor is all built into the hub somehow.

Any suggestion on what to look for? I can't say I understand how these ABS work, or why it is gettting a signal that it is not working.

cjstew4

Probably a short or ground issue on one or both rear circuit bds. (tailight assemblies). Make sure that your plug in harness connector hasn't shorted as well, as my 97's did. Both rear brake lights out, only third brake light on, as well as ABS and TCS idiot lights on. If you buy new cicrcuit bds only to solve your problem, goop weatherproof silicone caulk over the connection on both sides once you prove it works to prevent this shorting out from happening again. Design flaw by GM. Who would ever place any connection in the direct drain path of the rear hatch. The other option you have which costs about $5 is to label the harness wires that plug into the circuit board as to their location on the mating plug, cut the plug off the harness, attach connectors to each wire, cut down all 4 sides of the circuit bd plug about 3/8th to 1/2 in exposing the 5 pins. Be sure to clean off the shorted middle, thin prong/pin carefully. Attach the mating connector from the location markings you did earlier. Test the brakes, notice that your ABS/TCS dash lights are now out, and apply weatherproof silicone to the connections so that water, etc cannot collect at the harness or connections. The McGyver way, but my circuit has worked for over a year incident-free. email me separately at cjstew4@san.rr.com to discuss more. Thought my ABS or Traction Control was on the fritz, but low and behold, only after looking this up on AF did I discover the problem and fix. Keep us posted as to your solution so that we can all learn.

pokerman11

Thanks, I'll work on this in a few weeks.

Good chance it is a ground issue, as I also have this Van wired for tow. It can be (4wheels on the ground) towed from my RV as well as I have standard tow wiring so it can tow stuff.

The RV towing has extra wires plugged into the tailight assembly that I ran to the front so that the RV can light up the brakes/turn when the van is being towed. I bet that there is some ground issue somewhere in my wiring. That will be my first place to check, then will look at the boards.

Thanks for pointing this out. Shorts/Ground issues I can figure out. I'll keep you posted.