C058B
Brake Booster Motor B Position Sensor Circuit/Open
C058B is an OBD-II diagnostic trouble code meaning: Brake Booster Motor B Position Sensor Circuit/Open. Common causes: open or short circuit in wiring harness, amplifier motor position sensor malfunction. Estimated repair cost: $56–167.
Symptoms
- Hard brake pedal
- Reduced braking performance
- The brake system fault light comes on
- Unusual noises from the brake booster
Causes
- Open or short circuit in wiring harness
- Amplifier motor position sensor malfunction
- Damage to contacts or connectors
- Internal fault in brake booster motor
How to Fix
- Check the integrity of the wiring harness and contacts
- Test the position sensor with a multimeter
- Replace the sensor if a fault is detected
- Check the operation of the brake booster motor
- Reset the error and check the system after repair
Related codes
Error C058B by Vehicle Brand
FAQ
What does the C058B code mean?
C058B is an OBD-II diagnostic trouble code that indicates: Brake Booster Motor B Position Sensor Circuit/Open
What causes a C058B error code?
The most common causes of C058B include: Open or short circuit in wiring harness; Amplifier motor position sensor malfunction; Damage to contacts or connectors; Internal fault in brake booster motor.
How do I fix a C058B diagnostic trouble code?
To fix C058B: Check the integrity of the wiring harness and contacts. Test the position sensor with a multimeter. Replace the sensor if a fault is detected. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C058B?
Limited driving only, diagnose soon
How much does it cost to fix C058B?
The estimated repair cost for C058B is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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