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.
Normal Operation and Fault Conditions
The BCM uses 2 normally-open switches, connected in series, to monitor the wear of the brake pads. As the brake pads wear, the switches close. Once fully closed, the BCM sends a message to the IPC to display a warning in the message center.
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| C004A:13 | Brake Lining Wear Indicator: Circuit Open | This DTC sets when the BCM detects an open circuit condition in the brake lining wear indicator circuit. |
NO RELATED
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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.