Chassis
generic / SAE
C0273
Brake Booster Pressure Sensor Circuit Malfunction
The brake control module has detected an out-of-range or implausible signal from the brake booster pressure sensor. Brake assist and electronic boost functions may be limited.
SystemChassis
Typegeneric / SAE
GroupC0
Range / number2 / 73
Possible causes
- Booster pressure sensor failed high
- Wiring or connector fault to sensor medium
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 150–700 €
- Estimated time: 0.5–2.5 h
- Component: brake booster
- Component: booster pressure sensor
- Component: brake control module
Sources
References
sae:J2012