C0542
Brake Pressure Sensor B Circuit Low
C0542 is an OBD-II diagnostic trouble code meaning: Brake Pressure Sensor B Circuit Low. Common causes: brake pressure sensor fault b, open or short circuit in wiring harness. Estimated repair cost: $56–167.
Symptoms
- ABS/ESP indicator is on
- Reduced braking performance
- Disabling the ESP system
Causes
- Brake pressure sensor fault B
- Open or short circuit in wiring harness
- Poor contact in the sensor connector
- Problems with the ABS/ESP control unit
How to Fix
- Check the integrity of the sensor wiring harness
- Check the contacts in the sensor connector
- Check resistance of brake pressure sensor B
- Replace sensor if necessary
- Check ABS/ESP control unit
Related codes
Error C0542 by Vehicle Brand
FAQ
What does the C0542 code mean?
C0542 is an OBD-II diagnostic trouble code that indicates: Brake Pressure Sensor B Circuit Low
What causes a C0542 error code?
The most common causes of C0542 include: Brake pressure sensor fault B; Open or short circuit in wiring harness; Poor contact in the sensor connector; Problems with the ABS/ESP control unit.
How do I fix a C0542 diagnostic trouble code?
To fix C0542: Check the integrity of the sensor wiring harness. Check the contacts in the sensor connector. Check resistance of brake pressure sensor B. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0542?
Limited driving only, diagnose soon
How much does it cost to fix C0542?
The estimated repair cost for C0542 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat