How to Diagnose and Solve B1620 Wiper Rear Low Limit Input Circuit Open Issues

Introduction

If you’re experiencing issues with your car’s wiper system, specifically the B1620 Wiper Rear Low Limit Input Circuit Open issue, you’re not alone. This problem can be frustrating and inconvenient, but with the right knowledge and tools, it can be easily diagnosed and solved. In this article, we’ll provide you with step-by-step instructions and useful tips to help you fix this issue and get your wiper system back to working properly.

What is the B1620 Wiper Rear Low Limit Input Circuit Open Issue?

The B1620 Wiper Rear Low Limit Input Circuit Open issue is a common problem that affects the wiper system of many cars. This issue occurs when the wiper system’s control module detects an open circuit in the rear wiper motor’s low limit input circuit. This can cause the rear wiper to stop working or not work properly.

Diagnosing the B1620 Wiper Rear Low Limit Input Circuit Open Issue

To diagnose the B1620 Wiper Rear Low Limit Input Circuit Open issue, you’ll need a few tools, including a multimeter and a wiring diagram for your car’s wiper system. Here are the steps to follow:

Step 1: Check the Rear Wiper Motor

The first step is to check the rear wiper motor for any signs of damage or wear. Inspect the motor’s wiring and connections for any signs of corrosion or damage. If you notice any damage, replace the motor.

Step 2: Check the Wiper Switch

Next, check the wiper switch for any signs of damage or wear. Use a multimeter to test the switch’s continuity. If the switch is faulty, replace it.

Step 3: Check the Wiring

Check the wiring for any signs of damage or wear. Use a wiring diagram to locate the low limit input circuit and test it for continuity using a multimeter. If the circuit is open, repair or replace the wiring.

Solving the B1620 Wiper Rear Low Limit Input Circuit Open Issue

Once you’ve diagnosed the issue, it’s time to solve it. Here are the steps to follow:

Step 1: Replace the Rear Wiper Motor

If the rear wiper motor is damaged or worn, replace it with a new one.

Step 2: Replace the Wiper Switch

If the wiper switch is faulty, replace it with a new one.

Step 3: Repair or Replace the Wiring

If the low limit input circuit is open, repair or replace the wiring.

Useful Tips

Here are some useful tips to keep in mind when diagnosing and solving the B1620 Wiper Rear Low Limit Input Circuit Open issue:

– Always use a wiring diagram to locate the low limit input circuit and test it for continuity using a multimeter.
– Inspect the rear wiper motor and wiring for any signs of damage or wear.
– Use a multimeter to test the wiper switch for continuity.
– If you’re not comfortable diagnosing or solving the issue yourself, seek the help of a professional mechanic.

Conclusion

The B1620 Wiper Rear Low Limit Input Circuit Open issue can be frustrating, but with the right knowledge and tools, it can be easily diagnosed and solved. By following the steps outlined in this article and keeping our useful tips in mind, you can get your wiper system back to working properly in no time.

FAQs

1. Can I still use my car if the rear wiper is not working?

Yes, you can still use your car if the rear wiper is not working. However, it’s important to get the issue fixed as soon as possible to ensure your safety and the safety of others on the road.

2. How much does it cost to fix the B1620 Wiper Rear Low Limit Input Circuit Open issue?

The cost to fix the B1620 Wiper Rear Low Limit Input Circuit Open issue can vary depending on the make and model of your car and the extent of the damage. It’s best to get a quote from a professional mechanic.

3. Can I diagnose and solve the B1620 Wiper Rear Low Limit Input Circuit Open issue myself?

Yes, you can diagnose and solve the B1620 Wiper Rear Low Limit Input Circuit Open issue yourself if you have the right knowledge and tools. However, if you’re not comfortable doing so, it’s best to seek the help of a professional mechanic.