C1230 – BMW DTC

BMW DTC C1230 – Left Front Wheel Speed Sensor Direction of Rotation Implausible

DTC C1230 meaning on BMW

DTC C1230 on a BMW indicates that the left front wheel speed sensor has detected an implausible direction of rotation. This means that the sensor is reporting a speed or direction of rotation for the left front wheel that is not consistent with the vehicle’s actual movement.

BMW DTC C1230 symptoms

Symptoms of DTC C1230 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 C1230 causes

The most common causes of DTC C1230 on a BMW include:

  • Failed or malfunctioning left front wheel speed sensor
  • Damage to the sensor wiring or connectors
  • Contaminants or debris interfering with the sensor’s operation
  • Issues with the ABS control module

BMW DTC C1230 seriousness

DTC C1230 should be taken seriously as it can affect the proper operation 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 or emergency braking situations.

How to diagnose DTC C1230 on BMW

To diagnose DTC C1230 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 left front wheel speed sensor for any visible damage or contamination
  3. Check the sensor wiring and connectors for any signs of wear or corrosion
  4. Perform a road test to observe the vehicle’s behavior and confirm the issue

How to fix DTC C1230 on BMW

To fix DTC C1230 on a BMW, you can try the following solutions:

  1. Replace the left front wheel speed sensor if it is faulty
  2. Repair or replace any damaged wiring or connectors associated with the sensor
  3. Clean the sensor and its mounting area to remove any contaminants
  4. If the issue persists, have the ABS control module checked by a professional

How to erase DTC C1230 on BMW

To erase DTC C1230 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ABS system’s memory. After performing the necessary repairs and confirming that the issue has been resolved, you can reset the system to remove the fault code and turn off the warning light 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

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.