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.
Pinpoint Test Q: C0072:4B: Notes
Normal Operation and Fault Conditions
The ABS module continually monitors the status and condition of the ABS and stability control systems. Using the various sensor inputs, the ABS module is able to calculate the brake system temperature. Excessive brake system temperatures can lead to a brake fade condition. If the ABS module determines the brake system is overheated, a DTC is set and the ABS warning indicator is illuminated.
REFER to: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| ABS C0072:4B | Brake Temperature Too High: Over Temperature | Sets when the ABS module has determined the brake system is overheated. This is usually due to one or more brake calipers being partially applied (dragging). |
Possible Sources
- Parking brake partially applied
- Brake caliper concern
Visual Inspection and Pre-checks
- Inspect all 4 wheel ends for issues causing brake drag and repair as necessary.
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.