Q: Warning lights still on 2001 Pontiac Grand Am

asked by on

I have replaced everything that has thrown a code, but the ABS, TRAC OFF and SERVICE VEHICLE SOON lights remain on. Scanning shows no codes. Have replaced both wheel bearings, front brakes, mass air flow sensor and throttle position sensor.

My car has 193000 miles.
My car has an automatic transmission.

Hi there - the next level of diagnostics are going to be required - specifically the ABS system. (Top level OBD II codes aren’t enough here) I suspect you have a wheel speed sensor that is dirty or malfunctioning. These sensors are the basis for proper ABS and Traction control operation. These sensors are mounted on the wheel hubs, exposed to all sorts of grime, vibration and shocks, and can eventually fail. I recommend a ABS system inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Warning lights still on 2001 Pontiac Grand Am

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Locating and replacing my camshaft sensor - 2006 Pontiac Bonneville

Hi there. The camshaft position sensor is located on the rear cylinder head closest to the firewall (exhaust camshaft). Some engine cover and other bracket removal is necessary. If you would like assistance with this, I would recommend having a...

Q: Q: My vehicle won't start.

Hi there: If a vehicle has overheated, it's possible that damage may have been done to electrical connections, ignition system components (including the crankshaft position sensor) which can cause the no starting issue you're having. What should be done first...

Q: Overheating, leaking, and starting issue

I think you meant to say that the engine's cooling system is leaking, rather than the AC system. Without testing the cooling system, there is no way to tell where the leaks are. The hard starting may not be related...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.