How to Diagnose and Solve B1955 Seat Front Up/Down Potentiometer Feedback Circuit Open Issues

Introduction

If you’re experiencing issues with your car’s seat adjustment, specifically the front up/down function, you may have a B1955 error code. This code indicates a problem with the seat front up/down potentiometer feedback circuit, which can cause the seat to malfunction. In this article, we’ll go over how to diagnose and solve this issue.

Step 1: Check for Loose Connections

The first thing you should do is check for loose connections. This is a common issue that can cause the B1955 error code. Start by checking the wiring harness that connects to the seat front up/down potentiometer. Make sure it’s securely connected and there are no loose wires. If you find any loose connections, tighten them and see if the issue is resolved.

Step 2: Check the Potentiometer

If the connections are secure, the next step is to check the potentiometer itself. The potentiometer is a device that measures the position of the seat and sends feedback to the car’s computer. To check the potentiometer, you’ll need a multimeter. Set the multimeter to measure resistance and connect the probes to the potentiometer’s terminals. The resistance should change as you move the seat up and down. If the resistance doesn’t change, the potentiometer is faulty and needs to be replaced.

Step 3: Check the Wiring

If the potentiometer is working properly, the next step is to check the wiring. Start by checking the wiring harness for any damage or breaks. If you find any damage, repair or replace the wiring as necessary. If the wiring is in good condition, use the multimeter to check for continuity between the potentiometer and the car’s computer. If there’s no continuity, there’s a break in the wiring that needs to be repaired.

Step 4: Check the Car’s Computer

If the wiring is in good condition, the issue may be with the car’s computer. Use a scan tool to check for any error codes related to the seat front up/down potentiometer feedback circuit. If there are no error codes, the issue may be with the computer itself. In this case, you’ll need to take your car to a mechanic or dealership to have the computer diagnosed and repaired.

Step 5: Replace the Potentiometer

If you’ve gone through all the previous steps and the issue still isn’t resolved, the potentiometer may need to be replaced. This is a relatively simple process that can be done at home with a few basic tools. Start by disconnecting the wiring harness from the potentiometer. Then, remove the potentiometer from the seat and replace it with a new one. Finally, reconnect the wiring harness and test the seat to make sure it’s working properly.

Conclusion

If you’re experiencing issues with your car’s seat front up/down function, the B1955 error code may be to blame. By following the steps outlined in this article, you can diagnose and solve this issue on your own. Remember to check for loose connections, test the potentiometer, check the wiring, and scan the car’s computer for error codes. If all else fails, replace the potentiometer to get your seat working properly again.

FAQs

1. Can I drive my car with a B1955 error code?

It’s not recommended to drive your car with a B1955 error code, as it can cause the seat to malfunction and potentially lead to an accident. It’s best to diagnose and solve the issue as soon as possible.

2. How much does it cost to replace a potentiometer?

The cost of replacing a potentiometer can vary depending on the make and model of your car, as well as where you get the replacement part. On average, you can expect to pay between $50 and $200 for the part and labor.

3. Can I replace the potentiometer myself?

Replacing the potentiometer is a relatively simple process that can be done at home with a few basic tools. However, if you’re not comfortable working on your car or don’t have the necessary tools, it’s best to take your car to a mechanic or dealership for the repair.