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/System Description
The electronic brake control module (EBCM) supplies a 5 volt reference voltage to the yaw rate sensor/lateral acceleration sensor and the steering angle sensor. The steering angle sensor supplies input circuits to the electronic brake control module (EBCM) from the Digital Phase A, Phase B and 1 Analog signal circuit to determine the steering wheel angle. The analog signal is used to calibrate the steering angle sensor. The actual steering angle sensor position is determined by Phase A and Phase B signals which toggles between high and low when the steering wheel is turned. The two input signals Phase A and Phase B are approximately 90 degrees out of phase. Once calibrated, the EBCM dynamically interprets the relationship between the Phase A and Phase B inputs, which determines the rotation and the position of the steering wheel.
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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.
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