VCDS Calibrate Steering Angle: A Comprehensive Guide

Calibrating your car’s steering angle sensor is crucial for various driver-assist systems to function correctly. This guide provides a detailed walkthrough on how to perform a VCDS steering angle sensor calibration. This process involves edge detection, sensor calibration, and evaluation.

Understanding Steering Angle Sensor Calibration with VCDS

A steering angle sensor (SAS) relays the steering wheel’s position to the car’s electronic control unit (ECU). This data is essential for features like Electronic Stability Control (ESC), lane keeping assist, and adaptive cruise control. If your SAS is malfunctioning or requires recalibration after repairs, a VCDS (Vag-Com Diagnostic System) can be used to perform the calibration. This procedure typically involves three key steps:

Step 1: Edge Detection

This initial step involves identifying the steering wheel’s range of motion and its center point.

1. Engine On and Wheels Straight: Start the car’s engine and ensure the front wheels are pointing straight ahead.

2. Access Steering Assist Module: In VCDS, navigate to [44 – Steering Assist] and enter the security access code (16). Input 19249 and click [Do It!].

3. Select Measuring Values: Within [Adv. Meas. Values], select the following:

   • IDE04510-MAS03732 (Steering angle sensor: slope detection index – Steering angle speed negative dropping slope on curve)
   • IDE04510-MAS03733 (Steering angle sensor: slope detection index – Steering angle speed negative rising slope on curve)
   • IDE04510-MAS03734 (Steering angle sensor: slope detection index – Steering angle speed positive dropping slope on curve)
   • IDE04510-MAS03735 (Steering angle sensor: slope detection index – Steering angle speed positive rising slope on curve)
   • IDE04510-MAS03736 (Steering angle sensor: slope detection index – Index mark)

4. Turn Steering Wheel: Slowly rotate the steering wheel left and right, exceeding the index mark (approximately 45 degrees) until all four slope detection indexes are recognized (detected) and the index mark is set to (1). Select [Done, Go Back].

Step 2: Steering Angle Sensor Calibration

This step calibrates the sensor to the ECU.

1. Access Basic Settings: Navigate to [Basic Settings – 04] and select [Show Measuring Data].

2. Select Measuring Values: Choose the following:

   • IDE02216-IDE05795 (Steering angle sensor: basic setting – End basic setting)
   • IDE02216-MAS03161 (Steering angle sensor: basic setting – Start)

3. Start Basic Settings: In Basic Settings, select [MAS00815] Steering angle sensor and click [Go!]. The status should display “Running.”

4. Turn Steering Wheel: Slowly turn the steering wheel to the right and left mechanical stops.

5. Center Steering Wheel: Return the steering wheel to the center position. The status should change to “Permitted.” (Note: In some instances, “Permitted” may not display.)

6. Wait for Completion: Wait for the status to indicate “Finished correctly.” then click [Stop]. (Note: In some instances, “Finished correctly” may not display, but the procedure may still be successful if no fault codes are present.)

Step 3: Evaluation (No VCDS Required)

This final step confirms the calibration.

1. Full Range Test: Turn the steering wheel to both the right and left end stops, then return it to the center.
2. Fault Lamp Check: Observe the dashboard for a yellow fault lamp. It should turn off.
3. Engine Off and DTC Check: Turn off the engine and check for any Diagnostic Trouble Codes (DTCs). Clear any existing DTCs.

Conclusion

Successfully calibrating the steering angle sensor is vital for the proper operation of your vehicle’s safety and driver-assist systems. Using VCDS, you can perform this calibration with relative ease by following these steps. Remember to always consult your vehicle’s specific repair manual for detailed instructions and precautions. If you encounter any issues or are unsure about any part of the process, seeking professional assistance is recommended.