C058B – BMW DTC

BMW DTC C058B – Brake Booster Motor ‘B’ Position Sensor Circuit/Open

DTC C058B meaning on BMW

DTC C058B on a BMW refers to the Brake Booster Motor ‘B’ Position Sensor Circuit/Open. This diagnostic trouble code indicates that there is an issue with the position sensor circuit for the brake booster motor ‘B’ in the vehicle.

BMW DTC C058B symptoms

Symptoms of DTC C058B on a BMW may include:

• Brake system warning light illuminated on the dashboard
• Loss of power assistance in the braking system
• Strange noises coming from the brake booster motor

BMW DTC C058B causes

Common causes of DTC C058B on a BMW include:

• Faulty brake booster motor ‘B’ position sensor
• Open or short circuit in the sensor wiring
• Corrosion or poor connections in the sensor circuit

BMW DTC C058B seriousness

DTC C058B should be taken seriously as it can affect the proper functioning of the brake booster motor and compromise the vehicle’s braking system. It is important to address this issue promptly to ensure safe driving conditions.

How to diagnose DTC C058B on BMW

To diagnose DTC C058B on a BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes from the vehicle’s computer
2. Inspect the brake booster motor ‘B’ position sensor and its wiring for any visible damage or corrosion
3. Test the sensor circuit for continuity and proper voltage readings

How to fix DTC C058B on BMW

To fix DTC C058B on a BMW, you may need to:

1. Replace the faulty brake booster motor ‘B’ position sensor
2. Repair any open or short circuits in the sensor wiring
3. Clean or repair any corroded connections in the sensor circuit

How to erase DTC C058B on BMW

To erase DTC C058B on a BMW, you can:

1. Use a diagnostic scanner to clear the fault codes from the vehicle’s computer
2. After fixing the underlying issue, drive the vehicle to allow the system to retest and verify that the fault code does not return

Recommended tools & DTC Scanners for BMW

Best Diagnostic App for modern BMWs: BimmerLink

Recommended Bluetooth adapter for Bimmerlink: OBDLink CX

Cable adapter for Bimmerlink: Enet Cable USB Type C

For older BMWs we recommend: Autel AutoLink AL319 (2024 version)

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

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