Skip the auto shop - Our mechanics make house calls

Q: ABS light on, brake light on

asked by on

The dash in my truck has been sporadically showing the ABS and brake lights on. I found out that it might be happening due to a failing ABS brake control module. I would like to get it replaced myself. However, I don't know where exactly it is. Could you tell me where it's located and what would be the correct way to get it replaced?

A: A few different faults may be causing the A...

A few different faults may be causing the ABS and brake lights to intermittently show on your 2001 GMC Sierra 2500. You are correct that the ABS brake control module could be a potential cause. The most likely causes would be a wheel speed sensor, ABS module, mechanical brake component, or low brake fluid. The ABS module can be an expensive and complex part that should be diagnosed and confirmed it is bad before it is replaced. If you need help pinpointing the fault, a qualified technician, such as one from YourMechanic, can assist you with diagnosing your ABS Light and brake light issues

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: My brakes brake then release and brake again

The brakes work and release and work again is the anti lock brakes engaging. This can be due to a failure in the rear wheel speed sensor not sending a clean steady signal. The sensor is in the rear axle...

Q: Accelerating causes ticking noise.

A ticking noise indicates a worn valve lash adjuster that is dirty and needs cleaning or needs to be replaced. These are the lifters that ride on the camshaft and provide lift for the valve. They are spring loaded and...

Q: No brake lights. Bulbs are good and 3rd brake light works. Problem?

Hello there, thanks for writing in. It seems that faulty brake lights are a common problem with 2000 Pontiac Montanas. If the 3rd brake light works than the brake switch is working properly. The most common causes would be a...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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.