How to Diagnose and Solve B1446 Wiper Park Sense Circuit Failure Issues

Introduction

As a car owner, you may have experienced issues with your wiper park sense circuit. One of the most common issues is the B1446 wiper park sense circuit failure. This issue can be frustrating, especially during rainy seasons. However, with the right knowledge and tools, you can diagnose and solve this problem on your own. In this article, we will guide you through the process of diagnosing and solving B1446 wiper park sense circuit failure issues.

What is B1446 Wiper Park Sense Circuit Failure?

B1446 is a diagnostic trouble code (DTC) that indicates a failure in the wiper park sense circuit. The wiper park sense circuit is responsible for detecting the position of the wiper blades when they are not in use. When the wiper blades are turned off, they should return to a specific position known as the park position. The wiper park sense circuit ensures that the wiper blades return to the park position correctly.

Diagnosing B1446 Wiper Park Sense Circuit Failure

To diagnose B1446 wiper park sense circuit failure, you will need a scan tool that can read DTCs. Follow these steps:

Step 1: Connect the Scan Tool

Connect the scan tool to the OBD-II port of your car. 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 scan tool. Look for the B1446 code in the list of DTCs. If the B1446 code is present, it means that there is a failure in the wiper park sense circuit.

Step 3: Inspect the Wiper Motor and Linkage

Inspect the wiper motor and linkage for any damage or wear. Check the wiring and connectors for any signs of damage or corrosion. If you find any damage or wear, replace the wiper motor or linkage.

Step 4: Check the Wiper Park Switch

Check the wiper park switch for any damage or wear. The wiper park switch is located on the wiper motor. If you find any damage or wear, replace the wiper park switch.

Step 5: Check the Wiper Park Sense Circuit

Check the wiper park sense circuit for any damage or wear. The wiper park sense circuit is a part of the wiper motor. If you find any damage or wear, replace the wiper motor.

Solving B1446 Wiper Park Sense Circuit Failure

To solve B1446 wiper park sense circuit failure, follow these steps:

Step 1: Replace the Wiper Motor

If you find any damage or wear in the wiper motor or wiper park sense circuit, replace the wiper motor.

Step 2: Replace the Wiper Park Switch

If you find any damage or wear in the wiper park switch, replace the wiper park switch.

Step 3: Clear the DTCs

Clear the DTCs using the scan tool. This will reset the system and allow you to test the wiper park sense circuit.

Step 4: Test the Wiper Park Sense Circuit

Test the wiper park sense circuit by turning on the wiper blades and then turning them off. The wiper blades should return to the park position correctly. If they do not, repeat the diagnostic process.

Conclusion

B1446 wiper park sense circuit failure can be a frustrating issue for car owners. However, with the right knowledge and tools, you can diagnose and solve this problem on your own. Follow the steps outlined in this article to diagnose and solve B1446 wiper park sense circuit failure issues.

FAQs

1. Can I drive my car with B1446 wiper park sense circuit failure?

Yes, you can drive your car with B1446 wiper park sense circuit failure. However, you may experience issues with your wiper blades returning to the park position correctly.

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

The cost of replacing a wiper motor varies depending on the make and model of your car. On average, it can cost between $150 and $300.

3. Can I replace the wiper motor myself?

Yes, you can replace the wiper motor yourself if you have the right tools and knowledge. However, if you are not confident in your abilities, it is best to have a professional mechanic do it for you.