C05BF
Brake Booster Motor B Position Sensor Supply Circuit Range/Performance
C05BF is an OBD-II diagnostic trouble code meaning: Brake Booster Motor B Position Sensor Supply Circuit Range/Performance. Common causes: brake booster motor position sensor fault b, open or short circuit in wiring harness. Estimated repair cost: $56–167.
Symptoms
- Increased brake pedal force
- The brake system fault indicator is on
- Uneven operation of the brake booster
- Reduced braking performance
Causes
- Brake booster motor position sensor fault B
- Open or short circuit in wiring harness
- Poor contact in connectors
- Contact corrosion
- Low voltage in the on-board network
- Malfunction of the brake system control unit
How to Fix
- Check the voltage in the on-board network
- Inspect the wiring harness for damage
- Check the contacts in the sensor and control unit connectors
- Test brake booster motor position sensor B
- If necessary, replace the sensor or wiring harness
- Check and, if necessary, replace the brake system control unit
Related codes
Error C05BF by Vehicle Brand
FAQ
What does the C05BF code mean?
C05BF is an OBD-II diagnostic trouble code that indicates: Brake Booster Motor B Position Sensor Supply Circuit Range/Performance
What causes a C05BF error code?
The most common causes of C05BF include: Brake booster motor position sensor fault B; Open or short circuit in wiring harness; Poor contact in connectors; Contact corrosion.
How do I fix a C05BF diagnostic trouble code?
To fix C05BF: Check the voltage in the on-board network. Inspect the wiring harness for damage. Check the contacts in the sensor and control unit connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C05BF?
Limited driving only, diagnose soon
How much does it cost to fix C05BF?
The estimated repair cost for C05BF is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat