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.
Circuit Description
The 5 inputs to the electronic brake control module (EBCM), which are used solely for vehicle stability enhancement, are the longitudinal accelerometer, lateral accelerometer, yaw rate sensor, master cylinder pressure sensor, and the steering wheel position sensor. The EBCM must detect valid inputs from all 5 sources during the initialization period in order to enable the vehicle stability enhancement system (VSES). Initialization must occur during the first 3 000 meters of vehicle travel or 1 000 meters of straight vehicle travel. If initialization cannot be achieved during this time period, the VSES remains inactive and the stability system not ready indicator is illuminated. The EBCM does not attempt to reinitialize until the next ignition cycle. One or more DTCs often set, shortly after an unsuccessful initialization attempt, indicating the root cause of the failure. If this occurs, the stability system not ready indicator is no longer illuminated. The stability system caution indicator is illuminated instead.
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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.