C0131

C0131

Pressure sensor failure

Fault symptoms
TC/ESP OFF on

ABS lamp on

ABS, TCS or ESP inoperative

Conditions
The signal from the pressure sensor exceeds 4.75 V or is less than 0.25 V for 0.1 s.

The power supply to the pressure sensor exceeds 5.6 V or is less than 4.4 V for 0.06 s.

Faulty signal from pressure sensor

Diagnostic help
Before conducting fault diagnosis of the pressure sensor, the circuit for the brake light switch must first be checked. See Brake lights.

A pressure reading can be taken using the diagnostic tool. The value should be 0 when the pump is at rest and the brake pedal fully released.

Fault Diagnosis Procedure