BMW DTC C1204 – Wheel Speed Sensor Front/Right Circuit Low
DTC C1204 meaning on BMW
DTC C1204 on a BMW indicates an issue with the front right wheel speed sensor circuit registering a low voltage. The wheel speed sensor is responsible for monitoring the speed of the wheel and providing this information to the vehicle’s ABS system for proper operation.
BMW DTC C1204 symptoms
Symptoms of DTC C1204 on a BMW may include:
- ABS warning light illuminated on the dashboard
- ABS system may not function properly
- Loss of traction control
- Increased stopping distance during braking
BMW DTC C1204 causes
Common causes of DTC C1204 on a BMW include:
- Faulty front right wheel speed sensor
- Corroded or damaged wiring/connectors in the sensor circuit
- Issues with the ABS control module
BMW DTC C1204 seriousness
DTC C1204 should be addressed promptly as it affects the proper functioning of the ABS system and traction control. Ignoring this issue can compromise the safety and stability of the vehicle, especially during braking and slippery road conditions.
How to diagnose DTC C1204 on BMW
To diagnose DTC C1204 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes from the ABS system
- Inspect the front right wheel speed sensor and its wiring for any visible damage or corrosion
- Test the sensor’s resistance and voltage output to determine if it is functioning correctly
- Check the ABS control module for any faults or malfunctions
How to fix DTC C1204 on BMW
To fix DTC C1204 on a BMW, you can try the following solutions:
- Replace the front right wheel speed sensor if it is found to be faulty
- Repair or replace any damaged wiring or connectors in the sensor circuit
- If the issue persists, consider checking and potentially replacing the ABS control module
How to erase DTC C1204 on BMW
To erase DTC C1204 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ABS system’s memory. Once the codes are cleared, you can test drive the vehicle to ensure the issue has been resolved and the warning light is no longer illuminated.
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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