Chassis
generic / SAE
C0090
Hydraulic Brake Pressure Sensor Circuit
The brake pressure sensor in the master cylinder or hydraulic block reports an implausible signal or no signal. The fault disables ABS, stability control and brake assist.
SystemChassis
Typegeneric / SAE
GroupC0
Range / number– / 90
Possible causes
- Pressure sensor element failed high
- Sensor wiring fault medium
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 200–900 €
- Estimated time: 1–3.5 h
- Component: brake pressure sensor
- Component: abs control module
- Component: sensor wiring
Sources
References
sae:J2012