How to Fix B1241 Wiper Washer Rear Pump Relay Circuit Short to Battery

Introduction

If you’re experiencing the B1241 error code on your car, it means that there’s a problem with the wiper washer rear pump relay circuit short to battery. This can be a frustrating issue to deal with, but fortunately, it’s something that you can fix on your own with a little bit of know-how. In this article, we’ll walk you through the steps you need to take to fix this problem and get your car back on the road.

Step 1: Diagnose the Problem

Before you can fix the B1241 error code, you need to diagnose the problem. Start by checking the fuse for the wiper washer rear pump relay circuit. If the fuse is blown, replace it and see if that fixes the problem. If the fuse is not the issue, you’ll need to move on to the next step.

Step 2: Check the Wiring

The next step is to check the wiring for the wiper washer rear pump relay circuit. Look for any signs of damage or wear, such as frayed wires or loose connections. If you find any issues, repair or replace the wiring as needed.

Step 3: Check the Relay

If the wiring is not the issue, the next step is to check the relay itself. Start by removing the relay from its socket and inspecting it for any signs of damage or wear. If the relay looks fine, you can test it using a multimeter. Set the multimeter to the continuity setting and touch the probes to the relay’s terminals. If the multimeter beeps, the relay is working properly. If it doesn’t beep, you’ll need to replace the relay.

Step 4: Replace the Rear Pump

If the relay is not the issue, the problem may be with the rear pump itself. Start by disconnecting the pump’s wiring harness and removing the pump from its mounting bracket. Inspect the pump for any signs of damage or wear, such as cracks or leaks. If the pump looks fine, you can test it using a multimeter. Set the multimeter to the voltage setting and touch the probes to the pump’s terminals. If the multimeter reads 12 volts, the pump is working properly. If it doesn’t read 12 volts, you’ll need to replace the pump.

Step 5: Reassemble and Test

Once you’ve replaced any faulty components, it’s time to reassemble everything and test the system. Reconnect the wiring harnesses and replace any parts you removed. Turn on the car and test the wiper washer rear pump relay circuit. If everything is working properly, the B1241 error code should be gone.

Conclusion

Fixing the B1241 error code may seem daunting, but with a little bit of know-how, it’s something that you can do on your own. By following the steps outlined in this article, you can diagnose and fix the problem and get your car back on the road in no time.

FAQs

1. Can I drive my car with the B1241 error code?

It’s not recommended to drive your car with the B1241 error code. This error code indicates a problem with the wiper washer rear pump relay circuit, which can affect your ability to see while driving in inclement weather.

2. How much does it cost to fix the B1241 error code?

The cost to fix the B1241 error code will depend on the specific issue causing the problem. If it’s a simple fix like replacing a blown fuse, it may only cost a few dollars. If it’s a more complex issue like replacing the rear pump, it could cost several hundred dollars.

3. Can I fix the B1241 error code myself?

Yes, you can fix the B1241 error code yourself if you have some basic knowledge of car repair and the right tools. However, if you’re not comfortable working on your car or don’t have the necessary tools, it’s best to take it to a professional mechanic.