How to Diagnose and Solve B1957 Seat Front Up/Down Potentiometer Feedback Circuit Short To Ground Issues

Introduction

If you’re experiencing issues with your car’s seat adjustment, specifically the front up/down function, and you’ve received a B1957 error code, then you may have a problem with the seat front up/down potentiometer feedback circuit short to ground. This can be a frustrating issue to deal with, but with the right tools and knowledge, you can diagnose and solve the problem yourself.

Step 1: Check the Wiring

The first step in diagnosing this issue is to check the wiring. Start by inspecting the wiring harness for any visible damage or wear. Look for any frayed wires, loose connections, or signs of corrosion. If you find any issues, repair or replace the affected wiring.

Step 2: Check the Potentiometer

Next, you’ll need to check the potentiometer. This is the component that measures the position of the seat and sends feedback to the control module. To test the potentiometer, you’ll need a multimeter. Set the multimeter to measure resistance and connect the leads to the potentiometer terminals. Move the seat up and down and check the resistance readings. If the readings are not within the specified range, then the potentiometer may be faulty and will need to be replaced.

Step 3: Check the Control Module

If the wiring and potentiometer are both in good condition, then the issue may be with the control module. To test the control module, you’ll need a diagnostic scanner. Connect the scanner to the car’s OBD-II port and read the error codes. If the B1957 code is still present, then the control module may be faulty and will need to be replaced.

Step 4: Replace the Faulty Component

Once you’ve identified the faulty component, you’ll need to replace it. If it’s the wiring, repair or replace the affected wires. If it’s the potentiometer, replace it with a new one. If it’s the control module, replace it with a new or refurbished one.

Useful Tips

– Always disconnect the battery before working on any electrical components in your car.
– Use a wiring diagram to help you identify the correct wires and components.
– Make sure to use the correct tools and follow proper safety procedures when working on your car.

Conclusion

Dealing with a B1957 error code can be frustrating, but with the right tools and knowledge, you can diagnose and solve the issue yourself. By checking the wiring, potentiometer, and control module, you can identify the faulty component and replace it to get your seat adjustment working properly again.

FAQs

1. Can I drive my car with a B1957 error code?

It’s not recommended to drive your car with a B1957 error code as it can affect the functionality of your seat adjustment. It’s best to diagnose and solve the issue as soon as possible.

2. Can I repair the potentiometer instead of replacing it?

In most cases, it’s not recommended to repair the potentiometer as it can be difficult to do so and may not be a permanent solution. It’s best to replace the potentiometer with a new one.

3. Can I replace the control module myself?

Replacing the control module can be a complex task and may require specialized tools and knowledge. It’s recommended to have a professional mechanic or technician replace the control module for you.