BMW DTC C057B – Brake Booster Temperature Sensor ‘B’ Circuit/Open
DTC C057B meaning on BMW
DTC C057B on a BMW refers to the Brake Booster Temperature Sensor ‘B’ Circuit/Open. This diagnostic trouble code indicates that there is an issue with the circuit or an open circuit in the Brake Booster Temperature Sensor ‘B’.
BMW DTC C057B symptoms
Symptoms of DTC C057B on a BMW may include:
- Check Engine Light illuminated
- Brake system warning light may be on
- Decreased brake performance
BMW DTC C057B causes
Common causes of DTC C057B on a BMW include:
- Faulty Brake Booster Temperature Sensor ‘B’
- Wiring or connector issues in the sensor circuit
- Corrosion or poor connections
BMW DTC C057B seriousness
DTC C057B should be addressed promptly as it can affect the proper functioning of the brake system. Ignoring this issue may lead to decreased brake performance and compromise vehicle safety.
How to diagnose DTC C057B on BMW
To diagnose DTC C057B on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the Brake Booster Temperature Sensor ‘B’ and its wiring for any visible damage
- Test the sensor using a multimeter to check for continuity and proper resistance
- Check the sensor circuit for any open circuits or shorts
How to fix DTC C057B on BMW
To fix DTC C057B on a BMW, you can try the following:
- Replace the faulty Brake Booster Temperature Sensor ‘B’
- Repair or replace any damaged wiring or connectors in the sensor circuit
- Clean any corrosion from the connections
How to erase DTC C057B on BMW
To erase DTC C057B on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s system. Once the issue has been addressed and fixed, you can reset the codes to turn off the warning lights.
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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