How to Diagnose and Solve B1990 Pedal Forward / Rearward Potentiometer Feedback Circuit Failure issues

Introduction

As a car owner, it’s essential to know how to diagnose and solve common car problems. One of the most common issues that car owners face is the B1990 Pedal Forward / Rearward Potentiometer Feedback Circuit Failure. This problem can cause your car to malfunction, and it’s crucial to address it as soon as possible. In this article, we’ll discuss how to diagnose and solve this issue.

What is B1990 Pedal Forward / Rearward Potentiometer Feedback Circuit Failure?

The B1990 Pedal Forward / Rearward Potentiometer Feedback Circuit Failure is a problem that occurs when the potentiometer feedback circuit in your car’s accelerator pedal fails. This failure can cause your car to malfunction, and it’s essential to address it as soon as possible.

Diagnosing the Problem

The first step in diagnosing the B1990 Pedal Forward / Rearward Potentiometer Feedback Circuit Failure is to check the error code. You can do this by using an OBD-II scanner. Once you have the error code, you can start diagnosing the problem.

The most common cause of this problem is a faulty accelerator pedal position sensor. To check if this is the issue, you can use a multimeter to test the sensor’s resistance. If the resistance is outside the manufacturer’s specifications, you’ll need to replace the sensor.

Another possible cause of this problem is a damaged wiring harness. To check if this is the issue, you’ll need to inspect the wiring harness for any signs of damage or wear. If you find any damage, you’ll need to repair or replace the wiring harness.

Solving the Problem

Once you’ve diagnosed the problem, it’s time to solve it. If the issue is a faulty accelerator pedal position sensor, you’ll need to replace the sensor. You can do this by following these steps:

1. Disconnect the negative battery cable.
2. Remove the accelerator pedal assembly.
3. Disconnect the electrical connector from the sensor.
4. Remove the sensor from the accelerator pedal assembly.
5. Install the new sensor.
6. Reconnect the electrical connector.
7. Reinstall the accelerator pedal assembly.
8. Reconnect the negative battery cable.

If the issue is a damaged wiring harness, you’ll need to repair or replace the wiring harness. You can do this by following these steps:

1. Disconnect the negative battery cable.
2. Locate the damaged wiring harness.
3. Cut the damaged section of the wiring harness.
4. Strip the wires on both sides of the cut.
5. Connect the wires using a butt connector or soldering.
6. Wrap the connection with electrical tape.
7. Reconnect the negative battery cable.

Tips to Prevent B1990 Pedal Forward / Rearward Potentiometer Feedback Circuit Failure

To prevent the B1990 Pedal Forward / Rearward Potentiometer Feedback Circuit Failure, you should:

1. Regularly inspect your car’s wiring harness for any signs of damage or wear.
2. Replace any damaged or worn wiring harnesses immediately.
3. Regularly check your car’s accelerator pedal position sensor for any signs of malfunction.
4. Replace any faulty sensors immediately.

Conclusion

The B1990 Pedal Forward / Rearward Potentiometer Feedback Circuit Failure is a common problem that can cause your car to malfunction. It’s essential to diagnose and solve this issue as soon as possible. By following the steps outlined in this article, you can diagnose and solve this problem quickly and effectively.

FAQs

1. Can I drive my car with the B1990 Pedal Forward / Rearward Potentiometer Feedback Circuit Failure?

It’s not recommended to drive your car with the B1990 Pedal Forward / Rearward Potentiometer Feedback Circuit Failure. This problem can cause your car to malfunction, and it’s essential to address it as soon as possible.

2. How much does it cost to replace the accelerator pedal position sensor?

The cost of replacing the accelerator pedal position sensor varies depending on the make and model of your car. On average, you can expect to pay between $100 and $300 for parts and labor.

3. Can I replace the wiring harness myself?

Replacing the wiring harness can be a complicated process, and it’s recommended to have a professional mechanic do it for you. However, if you have experience working with car wiring, you can replace the wiring harness yourself.