C0079 – BMW DTC

BMW DTC C0079 – Variable Effort Steering

DTC C0079 meaning on BMW

The DTC C0079 on a BMW refers to an issue with the Variable Effort Steering system. This fault code indicates a problem with the steering system’s ability to adjust the steering effort based on driving conditions and vehicle speed.

BMW DTC C0079 symptoms

Symptoms of DTC C0079 on a BMW may include:

• Unusual or inconsistent steering effort
• Steering wheel feels heavy or light unexpectedly
• Loss of power steering assistance
• Warning light on the dashboard related to the steering system

BMW DTC C0079 causes

Common causes of DTC C0079 on a BMW include:

• Malfunctioning Variable Effort Steering system sensor
• Faulty steering control module
• Electrical issues in the steering system
• Wiring problems or loose connections

BMW DTC C0079 seriousness

The seriousness of DTC C0079 on a BMW depends on the specific symptoms experienced. If left unresolved, steering issues can affect the vehicle’s handling and safety. It is recommended to address this fault code promptly to ensure safe driving conditions.

How to diagnose DTC C0079 on BMW

To diagnose DTC C0079 on a BMW, a mechanic may perform the following steps:

1. Use a diagnostic scanner to retrieve the fault code and related data
2. Inspect the Variable Effort Steering system components for visible damage or wear
3. Check the sensor readings and signals for abnormalities
4. Test the steering control module for proper functionality
5. Conduct a thorough inspection of the steering system wiring and connections

How to fix DTC C0079 on BMW

To fix DTC C0079 on a BMW, the following steps may be taken:

1. Replace the malfunctioning Variable Effort Steering system sensor
2. Repair or replace the faulty steering control module
3. Address any electrical issues in the steering system
4. Repair or replace damaged wiring or connections
5. Perform a system reset and calibration after making repairs

How to erase DTC C0079 on BMW

To erase DTC C0079 on a BMW, follow these steps:

1. Use a diagnostic scanner to clear the fault code from the vehicle’s memory
2. Ensure that the underlying issue causing the fault code has been resolved
3. Perform a test drive to confirm that the steering system operates correctly
4. If the fault code does not reappear, the DTC C0079 has been successfully erased

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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