Skip the auto shop - Our mechanics make house calls

Q: Check engine light flashing

asked by on

My check engine light flashes my service stabil control light is on service traction control is on and the truck is like bucking. Please help

My car has 80021 miles.
My car has an automatic transmission.

The traction control system monitors the steering stability of the vehicle and engages when loss of traction has been detected. This is done by the use of electronic sensors that communicate with the Power Train Control Module (PCM) regarding steering performance and stability in adverse weather conditions. The traction control system works by reducing engine speed and determining which wheel to apply brake pressure to in order to prevent the vehicle from sliding. The anti-lock braking system and the traction control system work together to maintain the stability of the vehicle. The computer uses this information received from electronic sensors regarding the rotational speed of each wheel, the horizontal motion of the vehicle, and the vertical motion of the vehicle to determine how to direct the traction control system or the anti-lock braking system to best control the vehicle when needed. When this warning indicator light comes on in the dashboard, this could be an indication of several issues such as faulty wheel speed sensors, a faulty steering angle sensor, a faulty rotational speed sensor or a problem with the steering rack. In some cases, the traction control system may simply need to be reprogrammed. I would recommend having a professional from YourMechanic come to your location to properly diagnose your traction control system.

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: wind noise in doors

I'm not sure if the wind noise can be eliminated due to the shape of your 2005 GMC Envoy, but you may be able to reduce it to a more tolerable level. If you have a roof rack, I've heard...

Q: There is a rattle coming from my front driver side Tire area every time I turn in my 09 Ford excape what can it be

The rattle could be due to a loose or worn sway bar, strut, other suspension component, body panel, brake part including dust shield or other as yet unidentified part. As you are describing it, the noise sounds fairly obvious so...

Q: Have a 2013 GMC Sierra 1500 Denali with 6.2l v8 need to replace my alternator how do I tell which one I need a 145amp or 160amp

Alternator output is matched to the vehicle. If it is optioned to where it calls for the 160 amp alternator and you install the 145 amp, you can experience a frequent dead battery. You should install the correct one for...

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...
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.