XMC 003841.02 – Wheel Angle Sensor, Voltages in Channel 1 and Channel 2 Not in Correct Ratio

XMC 003841.02 (XMC 3841.02)

Code: 003841.02

Shortcode: 3841.02

Description:

This error code indicates that the voltages in channel 1 and channel 2 of the wheel angle sensor are not in the correct ratio. The signal voltage of sensor 2 should be 1/2 of the signal voltage of sensor 1. A difference of 0.4 volts or more suggests a problem with the sensor’s accuracy, despite the XSC control software measuring the value within the acceptable range.

Reaction:

When this error is detected, the control software will limit or disable certain functions to prevent potential malfunctions related to incorrect wheel angle readings.

Recommendations:

Inspect Sensor Wiring:

  • Check the wiring harness connected to the wheel angle sensor for any signs of damage, disconnection, or corrosion. Repair or replace any damaged wiring.

Test Sensor Functionality:

  • Use diagnostic tools to test the functionality of the wheel angle sensor. Ensure it is operating within specified parameters and that the voltages between channels 1 and 2 are in the correct ratio.

Verify Sensor Mounting:

  • Ensure the sensor is securely mounted and properly aligned. Loose or misaligned sensors can give inaccurate readings.

Check for Electrical Interference:

  • Ensure there is no electrical interference affecting the sensor. Inspect nearby components for potential sources of interference.

Replace Faulty Sensor:

  • If the sensor itself is determined to be faulty, replace it with a new, manufacturer-approved part.

Consult Technical Support:

  • If the issue persists, consult technical support for further assistance.

Note:

Ensuring the correct ratio between the voltages in channel 1 and channel 2 of the wheel angle sensor is essential for accurate vehicle steering performance. Regular checks and prompt repairs can prevent ratio-related issues from affecting system functionality.


Control Units: John Deere