C055A – BMW DTC

BMW DTC C055A – ABS Pump Motor Supply Voltage ‘A’ High

DTC C055A meaning on BMW

DTC C055A on a BMW refers to the ABS Pump Motor Supply Voltage ‘A’ being detected as high. This diagnostic trouble code indicates that the voltage supplied to the ABS pump motor exceeds the specified limit, triggering a fault in the system.

BMW DTC C055A symptoms

Symptoms of DTC C055A on a BMW may include:

• ABS warning light illuminated on the dashboard
• ABS system may not function properly
• Braking performance may be affected

BMW DTC C055A causes

Common causes of DTC C055A on a BMW include:

• Faulty ABS pump motor
• Short circuit or open circuit in the wiring related to the ABS pump motor
• Issues with the ABS control module

BMW DTC C055A seriousness

DTC C055A should be taken seriously as it can affect the proper functioning of the ABS system in your BMW. Driving with a faulty ABS system can compromise your vehicle’s safety, especially during emergency braking situations.

How to diagnose DTC C055A on BMW

To diagnose DTC C055A on your BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the ABS system
2. Inspect the wiring and connectors related to the ABS pump motor for any visible damage
3. Test the ABS pump motor for proper voltage supply and operation
4. Check the ABS control module for any faults or malfunctions

How to fix DTC C055A on BMW

To fix DTC C055A on your BMW, you may need to:

1. Replace the faulty ABS pump motor if necessary
2. Repair any damaged wiring or connectors associated with the ABS pump motor
3. Address any issues with the ABS control module
4. Clear the fault codes using a diagnostic scanner after the repairs

How to erase DTC C055A on BMW

To erase DTC C055A on your BMW, you can:

1. Use a diagnostic scanner to clear the fault codes stored in the ABS system
2. Ensure that the underlying issue causing the fault code has been resolved
3. Perform a test drive to confirm that the ABS system is functioning properly

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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