How to Diagnose and Solve B2248 Heated Windshield Relay Coil Circuit Failure Issues

Introduction

As a car owner, you may have experienced a situation where your heated windshield fails to work. This can be frustrating, especially during the winter season. One of the common reasons for this issue is a B2248 heated windshield relay coil circuit failure. In this article, we will discuss how to diagnose and solve this problem.

What is B2248 Heated Windshield Relay Coil Circuit Failure?

B2248 is a diagnostic trouble code (DTC) that indicates a failure in the heated windshield relay coil circuit. This code is specific to vehicles with a heated windshield feature. The heated windshield relay coil circuit is responsible for supplying power to the heated windshield system. When this circuit fails, the heated windshield will not work.

Diagnosing B2248 Heated Windshield Relay Coil Circuit Failure

To diagnose B2248 heated windshield relay coil circuit failure, you will need a diagnostic scanner. 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: Retrieve the DTC

Retrieve the DTC by selecting the “Read Codes” option on the diagnostic scanner. The scanner will display the DTC, which is B2248 in this case.

Step 3: Check the Heated Windshield Relay Coil Circuit

Check the heated windshield relay coil circuit by using a multimeter. Set the multimeter to measure resistance and check the resistance of the relay coil. The resistance should be within the manufacturer’s specifications. If the resistance is outside the specifications, replace the relay.

Step 4: Check the Wiring

Check the wiring of the heated windshield relay coil circuit. Look for any signs of damage or corrosion. If you find any damage, repair or replace the wiring.

Step 5: Check the Fuse

Check the fuse of the heated windshield relay coil circuit. If the fuse is blown, replace it with a new one.

Solving B2248 Heated Windshield Relay Coil Circuit Failure

Once you have diagnosed the problem, you can solve B2248 heated windshield relay coil circuit failure by following these steps:

Step 1: Replace the Relay

If the relay is faulty, replace it with a new one. Make sure to use a relay that meets the manufacturer’s specifications.

Step 2: Repair or Replace the Wiring

If the wiring is damaged, repair or replace it. Make sure to use wiring that meets the manufacturer’s specifications.

Step 3: Replace the Fuse

If the fuse is blown, replace it with a new one. Make sure to use a fuse that meets the manufacturer’s specifications.

Tips to Prevent B2248 Heated Windshield Relay Coil Circuit Failure

To prevent B2248 heated windshield relay coil circuit failure, follow these tips:

– Regularly inspect the wiring of the heated windshield relay coil circuit for any signs of damage or corrosion.
– Replace the relay if it is faulty.
– Use a fuse that meets the manufacturer’s specifications.

Conclusion

B2248 heated windshield relay coil circuit failure can be a frustrating issue for car owners. However, by following the steps outlined in this article, you can diagnose and solve the problem. Remember to regularly inspect the wiring, replace the relay if it is faulty, and use a fuse that meets the manufacturer’s specifications to prevent this issue from occurring.

FAQs

1. Can I still drive my car if the heated windshield is not working?

Yes, you can still drive your car if the heated windshield is not working. However, it may be uncomfortable during the winter season.

2. How much does it cost to replace a heated windshield relay coil?

The cost of replacing a heated windshield relay coil varies depending on the make and model of your vehicle. It can range from $50 to $200.

3. Can I replace the heated windshield relay coil myself?

Yes, you can replace the heated windshield relay coil yourself if you have the necessary tools and knowledge. However, if you are not confident in your abilities, it is best to seek the help of a professional mechanic.