Q: Q: ABS light on

asked by on

The ABS light is on, and I just had the wheel speed sensors replaced.

There is a technical service bulletin (TSB) GM has put out concerning a bad ground to the electronic brake controller module or EBCM. This causes a loss of communication and sets the ABS light. There are fault codes associated with this condition so fault codes should be read out.

If the reading out of the fault codes match the ones specified in the bulletin, then the ground for the EBCM on the underside of the frame should be cleaned and reconnected. You may want to enlist the help of a mechanic, such as one from YourMechanic, who will have the equipment and training to diagnose your ABS light and carry out the necessary 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. Q: ABS light on

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: When driving it feel like the tires are wobbling, but they are not.

You should not drive the vehicle until having the wheels checked to make sure they are seated correctly and secured tightly. If the rims are seated and tight then you may have a bad tire that have broken internal steel...

Q: Q: What does the anti-lock Brake System (ABS) warning light mean?

There are several important lights in your dash, including the anti-lock brake system (ABS) warning light. This light should come on briefly when you crank the engine, but it should turn off after completing a short self-test. If the light...

Q: Parking pinion in transmission broke

With the parking brake not engaging, caution should be observed. This vehicle has the parking pinion inside of the transmission and the transmission will need to be partially disassembled to fix this. A qualified technician will be able to diagnose...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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 Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.