Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Traction Control System Off Indicator
When the traction control system is in the ON state, the traction control light emitting diode (LED) request from the electronic brake control module (EBCM) to the body control module (BCM) circuit 832 is at battery voltage. In response, the BCM grounds circuit 1660. This action turns ON the traction control LED, indicating to the driver the traction control system is able to react to slippery conditions.
When the traction control system is in the OFF state, the traction control LED request from the EBCM to the BCM, circuit 832, is switched to ground. In response, the BCM switches OFF the traction control LED indicating to the driver the traction control system has been disabled.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.