I have a 2001 Camaro SS (I am the original owner), with a 5.7L LS1 V-8 Engine, 79,500 miles, 6-speed manual, 4 wheel anti lock brakes (Obviously), and the Traction Control option (Dash switch that turns the system off says "ASR" meaning "Acceleration Slip Regulation, as you know"). I have a unique problem that relates to the ABS and Traction Control systems. These 2 systems are obviously intertwined.
PROBLEM: EVERYTIME I start the car, NO warning lights are on. The very first time I tap the brakes, the brake pedal vibrates (like it does when the ABS activates), and the “Low Trac" warning light comes on (like it does when the Traction Control detects the rear wheels spinning). When I let off the brake pedal, the “Low Trac" light goes out, and the brake pedal stops vibrating. Then, the “ASR OFF" light comes on (Like it does when I deactivate the traction control system using the dash switch), and the “ABS INOP" warning light comes on (Indicating the anti-lock braking system no longer works). The little light on the ASR button goes off as well, and switching the button on or off has no impact or effect. NO OTHER WARNING LIGHTS ARE ON AT THIS POINT OR EVER. I have tested both systems (by skidding the tires, and spinning the rear wheels), and both systems really are inactivated. Although I am not a Mechanic by trade, I am mechanically inclined. I know much more about vehicles and their operation and maintenance than the average person. I have been working on and maintaining my own vehicles for the past 20 years or so. These 2 systems stay inactivated the whole time I am driving the car. The next time I start the car, the 2 dash lights are OFF, and the process starts over again the first time I touch the brake pedal. I am pretty sure BOTH systems do work until I take my foot off of the brake pedal for the first time.
What I have tried: I have looked for blown fuses, and have rebooted the computer several times (by pulling the 2 PCM fuses with the key on, but the car NOT started). Neither of these 2 things fixed the problem. I also asked the car what the heck is going on. I got no response :-(. I also went to an auto parts store that checks your computer for OBD-II trouble codes for free. They said they only do this if the SES light is on, and my issue would not produce any OBD-II codes. I do not know if this is true.
This is a scenario for a real expert. I would appreciate any feedback you could give me, or things to try. I will pay more if you help me fix the problem.
have the same problem?
Tuesday, June 30th, 2009 AT 10:32 AM