BMW DTC C055F – BSCM/EBBC Hydraulic Unit Performance
DTC C055F meaning on BMW
DTC C055F on a BMW refers to a fault with the Brake System Control Module (BSCM) or Electronic Brake Boost Control (EBBC) Hydraulic Unit. This diagnostic trouble code indicates that there is a performance issue with the hydraulic unit within the braking system.
BMW DTC C055F symptoms
Symptoms of DTC C055F on a BMW may include:
- ABS warning light illuminated on the dashboard
- Brake system warning message displayed
- Decreased braking performance
- Unusual noises coming from the braking system
BMW DTC C055F causes
The possible causes of DTC C055F on a BMW include:
- Faulty hydraulic unit within the BSCM/EBBC system
- Electrical issues within the brake control module
- Fluid leaks or contamination in the brake system
- Wiring harness problems
BMW DTC C055F seriousness
DTC C055F is a serious fault code as it relates to the performance of the hydraulic unit in the braking system. Ignoring this issue can lead to compromised braking performance and potentially unsafe driving conditions. It is important to address this fault promptly.
How to diagnose DTC C055F on BMW
To diagnose DTC C055F on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the BSCM/EBBC system
- Inspect the hydraulic unit for any visible damage or leaks
- Check the wiring and connections for any signs of wear or corrosion
- Perform a brake system pressure test to determine if the hydraulic unit is functioning correctly
How to fix DTC C055F on BMW
To fix DTC C055F on a BMW, the following steps may be taken:
- Replace the faulty hydraulic unit within the BSCM/EBBC system
- Repair any damaged wiring or connections in the brake system
- Flush and bleed the brake system to remove any contaminated fluid
- Clear the fault codes using a diagnostic scanner after the repairs have been completed
How to erase DTC C055F on BMW
To erase DTC C055F on a BMW, follow these steps:
- Connect a diagnostic scanner to the vehicle’s OBD-II port
- Select the option to clear fault codes from the BSCM/EBBC system
- Follow the on-screen prompts to confirm the deletion of the fault code
- Once the fault code has been successfully cleared, disconnect the diagnostic scanner
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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