C0140
ChassisBrake Systemhigh severityElectronic Brake Force Distribution Malfunction
What C0140 Means
The EBD system that proportions brake force between front and rear has detected a fault.
Symptoms
- ABS light on
- Brake warning light on
- Rear wheels may lock under hard braking
- Vehicle pulls to one side during braking
Common Causes
- ABS sensor mismatch between front and rear
- ABS modulator valve fault
- Uneven brake pad wear front to rear
- Brake pressure imbalance
Diagnostic Steps
- Compare all four wheel speed sensor readings during braking
- Check brake pad wear at all four corners
- Inspect ABS modulator valve codes
- Test brake pressure distribution
- Verify tire sizes match
Where to start: {"Diagnose underlying ABS or mechanical brake issue. EBD relies on ABS components to function."}
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