BMW DTC C122F – Wheel Speed Sensor Generic Supply Voltage Circuit High
DTC C122F meaning on BMW
DTC C122F on a BMW refers to a Wheel Speed Sensor Generic Supply Voltage Circuit High fault. This diagnostic trouble code indicates that the voltage in the circuit supplying power to the wheel speed sensor is higher than normal.
BMW DTC C122F symptoms
Symptoms of DTC C122F on a BMW may include:
- ABS warning light illuminated on the dashboard
- Traction control system malfunction
- Loss of stability control
- Erratic or incorrect speedometer readings
BMW DTC C122F causes
The common causes of DTC C122F on a BMW include:
- Faulty wheel speed sensor
- Corroded or damaged wiring in the sensor circuit
- Issues with the ABS control module
- Faulty power supply to the sensor
BMW DTC C122F seriousness
DTC C122F should be taken seriously as it can affect the proper functioning of the ABS and traction control systems in the vehicle. Driving with this fault unresolved may compromise the safety and stability of the vehicle, especially in adverse road conditions.
How to diagnose DTC C122F on BMW
To diagnose DTC C122F on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s system
- Inspect the wheel speed sensor and its wiring for any visible damage or corrosion
- Check the power supply to the sensor for proper voltage levels
- Perform a continuity test on the sensor circuit to check for any open or short circuits
How to fix DTC C122F on BMW
To fix DTC C122F on a BMW, you can try the following solutions:
- Replace the faulty wheel speed sensor
- Repair or replace any damaged wiring in the sensor circuit
- Check and repair any issues with the ABS control module
- Ensure the power supply to the sensor is functioning correctly
How to erase DTC C122F on BMW
To erase DTC C122F on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s system. After fixing the underlying issue causing the fault code, you can then reset the system to remove the error code.
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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