BMW DTC C051A – Left Rear Wheel Speed Sensor – Mechanical
DTC C051A meaning on BMW
DTC C051A on a BMW indicates a fault with the Left Rear Wheel Speed Sensor due to a mechanical issue. The sensor is responsible for monitoring the speed of the left rear wheel and sending this data to the vehicle’s ABS system for proper operation.
BMW DTC C051A symptoms
Symptoms of DTC C051A on a BMW may include:
- ABS warning light illuminated on the dashboard
- ABS system not functioning properly
- Loss of traction control
- Unusual braking behavior
BMW DTC C051A causes
Common causes of DTC C051A on a BMW include:
- Damage to the left rear wheel speed sensor
- Loose or disconnected sensor wiring
- Corrosion or debris affecting sensor operation
- Faulty sensor mounting
BMW DTC C051A seriousness
The seriousness of DTC C051A on a BMW lies in the compromised functionality of the ABS system and traction control. Driving with this fault can affect the vehicle’s stability and safety, especially during braking and cornering maneuvers.
How to diagnose DTC C051A on BMW
To diagnose DTC C051A on a BMW, you can:
- Use a diagnostic scanner to retrieve the fault code
- Inspect the left rear wheel speed sensor for physical damage
- Check the sensor wiring for continuity and proper connection
- Clean the sensor area from any debris or corrosion
How to fix DTC C051A on BMW
To fix DTC C051A on a BMW, you may need to:
- Replace the left rear wheel speed sensor if damaged
- Repair or replace any faulty sensor wiring
- Clean the sensor mounting area and ensure proper installation
- Clear the fault code and reset the ABS system
How to erase DTC C051A on BMW
To erase DTC C051A on a BMW, you can:
- Use a diagnostic scanner to clear the fault code
- Ensure the underlying issue causing the fault has been resolved
- Perform a test drive to confirm the ABS system is functioning correctly
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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