C1231 – BMW DTC

BMW DTC C1231 – Right Front Wheel Speed Sensor Direction of Rotation Implausible

DTC C1231 meaning on BMW

DTC C1231 on a BMW indicates that the right front wheel speed sensor has detected an implausible direction of rotation. This means that the sensor is reporting a speed or rotation direction that is not consistent with the vehicle’s actual movement.

BMW DTC C1231 symptoms

Symptoms of DTC C1231 on a BMW may include:

  • ABS warning light illuminated on the dashboard
  • Traction control system may be disabled
  • Unusual braking behavior, such as pulsation or grabbing
  • Increased stopping distances

BMW DTC C1231 causes

The most common causes of DTC C1231 on a BMW include:

  • Faulty right front wheel speed sensor
  • Damaged or corroded sensor wiring or connectors
  • Wheel bearing issues affecting sensor readings
  • ABS module malfunction

BMW DTC C1231 seriousness

DTC C1231 should be taken seriously as it can affect the proper functioning of the vehicle’s ABS and traction control systems. Driving with this fault may compromise the vehicle’s stability and safety, especially in adverse road conditions.

How to diagnose DTC C1231 on BMW

To diagnose DTC C1231 on a BMW, you can follow these steps:

  1. Use a diagnostic scanner to retrieve the fault codes from the ABS system
  2. Inspect the right front wheel speed sensor and its wiring for any visible damage or corrosion
  3. Test the sensor’s output using a multimeter to check for proper signal
  4. Check the wheel bearing for any play or noise that could affect sensor readings
  5. If necessary, perform a visual inspection of the ABS module and related components

How to fix DTC C1231 on BMW

To fix DTC C1231 on a BMW, you can try the following solutions:

  1. Replace the right front wheel speed sensor if it is found to be faulty
  2. Repair or replace damaged sensor wiring or connectors
  3. Address any wheel bearing issues that may be affecting sensor readings
  4. If the ABS module is malfunctioning, it may need to be repaired or replaced

How to erase DTC C1231 on BMW

To erase DTC C1231 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ABS system. Once the issue has been addressed and fixed, clearing the codes will reset the system and turn off the warning lights on the dashboard.

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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