How to Diagnose and Solve B2220 Window Driver Rear Current Feedback Exceeded Issues

Introduction

If you’re experiencing issues with your car’s power windows, specifically the driver’s rear window, and you’ve received a B2220 error code, you’re not alone. This error code indicates that the current feedback from the window motor has exceeded the expected range, which can cause the window to malfunction or stop working altogether. In this article, we’ll guide you through the steps to diagnose and solve this issue.

Step 1: Check the Window Motor

The first step in diagnosing this issue is to check the window motor. Start by removing the door panel and disconnecting the motor from the wiring harness. Use a multimeter to test the motor’s resistance. The resistance should be within the manufacturer’s specifications. If the resistance is too high or too low, the motor may need to be replaced.

Step 2: Check the Window Regulator

If the motor tests within the correct range, the next step is to check the window regulator. The regulator is responsible for moving the window up and down. Check the regulator for any signs of damage or wear. If the regulator is damaged, it may need to be replaced.

Step 3: Check the Wiring Harness

If the motor and regulator are both functioning properly, the issue may be with the wiring harness. Check the wiring harness for any signs of damage or wear. If the wiring harness is damaged, it may need to be repaired or replaced.

Step 4: Check the Window Switch

If the wiring harness is functioning properly, the issue may be with the window switch. Check the switch for any signs of damage or wear. If the switch is damaged, it may need to be replaced.

Step 5: Check the Window Fuse

If all of the above steps have been completed and the issue still persists, the issue may be with the window fuse. Check the fuse for any signs of damage or wear. If the fuse is damaged, it may need to be replaced.

Conclusion

In conclusion, if you’re experiencing issues with your car’s power windows and have received a B2220 error code, there are several steps you can take to diagnose and solve the issue. Start by checking the window motor, regulator, wiring harness, switch, and fuse. By following these steps, you can get your power windows working properly again.

FAQs

1. Can I fix the B2220 error code myself?

Yes, you can diagnose and solve the B2220 error code yourself by following the steps outlined in this article. However, if you’re not comfortable working on your car’s electrical system, it’s best to take it to a professional mechanic.

2. How do I know if the window motor needs to be replaced?

If the motor’s resistance is outside of the manufacturer’s specifications, it may need to be replaced. Additionally, if the motor is making unusual noises or is not functioning properly, it may need to be replaced.

3. Can a damaged wiring harness cause other issues with my car?

Yes, a damaged wiring harness can cause other electrical issues with your car. It’s important to address any damage to the wiring harness as soon as possible to prevent further issues.