How to Diagnose and Solve B1437 Wiper Hi/Low Speed Relay Coil Circuit Short To Ground Issues

Introduction

If you’re experiencing issues with your wiper hi/low speed relay coil circuit short to ground, you’re not alone. This is a common problem that many car owners face, but it can be frustrating to diagnose and fix. In this article, we’ll provide you with step-by-step instructions on how to diagnose and solve this issue.

What is B1437 Wiper Hi/Low Speed Relay Coil Circuit Short To Ground?

B1437 is a diagnostic trouble code (DTC) that indicates a problem with the wiper hi/low speed relay coil circuit short to ground. This means that there is a short circuit in the wiring that connects the wiper relay to the ground. This can cause the wipers to malfunction or not work at all.

Diagnosing the Issue

The first step in diagnosing the issue is to check the wiper relay. You can do this by using a multimeter to test the resistance of the relay. If the resistance is too high or too low, then the relay is faulty and needs to be replaced.

If the relay is working properly, then the next step is to check the wiring. You can do this by using a wiring diagram to trace the wiring from the relay to the ground. Look for any signs of damage or wear, such as frayed wires or loose connections.

If you can’t find any issues with the wiring, then the problem may be with the wiper motor itself. You can test the motor by disconnecting it from the wiring and using a multimeter to test the resistance. If the resistance is too high or too low, then the motor is faulty and needs to be replaced.

Solving the Issue

Once you’ve identified the issue, it’s time to solve it. If the problem is with the wiper relay, then you’ll need to replace it. You can do this by purchasing a new relay from your local auto parts store and installing it in place of the old one.

If the problem is with the wiring, then you’ll need to repair or replace the damaged wiring. This can be a bit more complicated, but it’s still doable with the right tools and knowledge. You can either repair the damaged wiring by splicing in a new section of wire or replace the entire wiring harness.

If the problem is with the wiper motor, then you’ll need to replace it. This can be a bit more expensive than replacing the relay or repairing the wiring, but it’s still a relatively simple process. You can purchase a new wiper motor from your local auto parts store and install it in place of the old one.

Conclusion

In conclusion, diagnosing and solving B1437 wiper hi/low speed relay coil circuit short to ground issues can be a bit tricky, but it’s definitely doable with the right tools and knowledge. By following the steps outlined in this article, you should be able to identify the issue and fix it in no time.

FAQs

1. Can I still drive my car if I’m experiencing this issue?

It’s not recommended to drive your car if you’re experiencing issues with your wipers. This can be a safety hazard, especially if you’re driving in inclement weather.

2. How much does it cost to replace a wiper motor?

The cost of replacing a wiper motor can vary depending on the make and model of your car. On average, you can expect to pay anywhere from $100 to $300 for a new wiper motor.

3. Can I fix the wiring myself?

If you have experience with automotive wiring and the right tools, then you can definitely fix the wiring yourself. However, if you’re not comfortable working with electrical systems, it’s best to leave it to a professional.