Brake Master Cylinder Piston Position Sensor Supply Circuit
Generic fault on master cylinder piston position sensor supply circuit.
Affected components
- Master cylinder pos sensor supply
Common causes
- High likelihood: Supply wiring fault
Possible symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.