How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask RIP Your Own Question
RIP, Lead Technician
Category: Car
Satisfied Customers: 5591
Experience:  A.S.E. Master Technician, Advanced Level, Smog - European, Domestic, & Asian -- Car Category Mentor
Type Your Car Question Here...
RIP is online now
A new question is answered every 9 seconds

2000 Pontiac Grand Am: The ABS light..service engine soon..traction

Resolved Question:

I have a 2000 Pontiac Grand Am. The ABS light, service engine soon light, and traction off light all come on at the same time. What does this mean???? This does not happen at every key up and most of the time happens just driving down the road.

Submitted: 11 years ago.
Category: Car
Expert:  RIP replied 11 years ago.

The vehicle needs to go into a facility equipped with factory level diagnostics equippment, to have the ABS (anti-lock brake), PCM (powertrain contorl module - service engine lamp), and the Traction Control sytem evaluated. The three systems work together, and with the Transmisison, to operate the varioous safety features. There are a couple of common sensor failures that trigger these lamps. The VSS (vehicle speed sensor) provides vehicle speed input to the three systems, and the ABS system has 4 other separate wheel speed sensors to provide each wheel signal. When either of these sensors fail, they'll commonly set these lamps and disable the system(s) as well. It's is also been known for these to have the actual ABS module go out and no longer communicate with the other computers. When the repair facility scans the modules, they'll be able to interpret what components are causing the failure.


RIP and 9 other Car Specialists are ready to help you