How to Diagnose and Solve B1473 Wiper Low Speed Circuit Motor Failure Issues

Introduction

Wipers are an essential component of any vehicle, especially during rainy or snowy weather. However, when the wiper motor fails, it can be frustrating and dangerous. One of the most common wiper motor issues is the B1473 wiper low speed circuit motor failure. In this article, we will discuss how to diagnose and solve this problem.

What is B1473 Wiper Low Speed Circuit Motor Failure?

B1473 is a diagnostic trouble code (DTC) that indicates a problem with the wiper low speed circuit motor. This code is usually triggered when the wiper motor fails to operate at low speed. The wiper motor has different speed settings, and when the low-speed setting fails, it can cause the wipers to stop working altogether.

Diagnosing B1473 Wiper Low Speed Circuit Motor Failure

To diagnose B1473 wiper low speed circuit motor failure, you will need a diagnostic scanner that can read DTCs. Follow these steps:

Step 1: Connect the Diagnostic Scanner

Connect the diagnostic scanner to the OBD-II port of your vehicle. The OBD-II port is usually located under the dashboard on the driver’s side.

Step 2: Read the DTCs

Read the DTCs using the diagnostic scanner. Look for the B1473 code, which indicates a problem with the wiper low speed circuit motor.

Step 3: Inspect the Wiper Motor

Inspect the wiper motor for any signs of damage or wear. Check the wiring and connections for any loose or damaged wires.

Step 4: Test the Wiper Motor

Test the wiper motor using a multimeter. Set the multimeter to the ohms setting and test the resistance of the wiper motor. The resistance should be within the manufacturer’s specifications. If the resistance is outside the specifications, the wiper motor may need to be replaced.

Solving B1473 Wiper Low Speed Circuit Motor Failure

If you have diagnosed B1473 wiper low speed circuit motor failure, follow these steps to solve the problem:

Step 1: Replace the Wiper Motor

If the wiper motor is damaged or has failed the resistance test, it will need to be replaced. You can purchase a new wiper motor from an auto parts store or online.

Step 2: Install the New Wiper Motor

Install the new wiper motor according to the manufacturer’s instructions. Make sure to connect all the wiring and connections properly.

Step 3: Test the Wiper Motor

Test the wiper motor to ensure that it is working properly. Turn on the wipers and test all the speed settings.

Conclusion

B1473 wiper low speed circuit motor failure can be a frustrating and dangerous problem. However, by following the steps outlined in this article, you can diagnose and solve the problem quickly and easily. Remember to always follow the manufacturer’s instructions when replacing the wiper motor.

FAQs

1. Can I drive my car with a B1473 wiper low speed circuit motor failure?

It is not recommended to drive your car with a wiper motor failure, as it can be dangerous during rainy or snowy 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 vehicle. On average, it can cost between $150 and $300.

3. Can I replace the wiper motor myself?

Replacing the wiper motor can be a DIY project, but it requires some mechanical knowledge and tools. If you are not comfortable working on your car, it is best to take it to a professional mechanic.