How to Diagnose and Solve B1820 Wiper Rear Motor Up Relay Coil Circuit Short To Battery Issues
Introduction
If you’re experiencing issues with your car’s wiper rear motor up relay coil circuit short to battery, you’re not alone. This problem can be frustrating and can cause a lot of inconvenience, especially during rainy seasons. However, diagnosing and solving this issue is not as complicated as it may seem. In this article, we’ll guide you through the process of diagnosing and solving B1820 wiper rear motor up relay coil circuit short to battery issues.
What is B1820 Wiper Rear Motor Up Relay Coil Circuit Short To Battery?
B1820 is a diagnostic trouble code (DTC) that indicates a problem with the wiper rear motor up relay coil circuit short to battery. This code is usually triggered when there is a short circuit in the wiper rear motor up relay coil circuit, causing the wiper motor to malfunction.
Diagnosing B1820 Wiper Rear Motor Up Relay Coil Circuit Short To Battery Issues
To diagnose B1820 wiper rear motor up relay coil circuit short to battery issues, you’ll need a few tools, including a multimeter, a wiring diagram, and a scan tool. Here are the steps to follow:
Step 1: Check the Wiring
The first step is to check the wiring for any signs of damage or wear. Start by inspecting the wiring harness for any visible damage, such as cuts, abrasions, or corrosion. If you notice any damage, repair or replace the affected wiring.
Step 2: Check the Relay
The next step is to check the wiper rear motor up relay. Use a multimeter to test the relay’s resistance and continuity. If the relay is faulty, replace it with a new one.
Step 3: Check the Wiper Motor
If the wiring and relay are in good condition, the next step is to check the wiper motor. Use a multimeter to test the motor’s resistance and continuity. If the motor is faulty, replace it with a new one.
Step 4: Check the Battery
If the wiring, relay, and motor are all in good condition, the problem may be with the battery. Use a multimeter to test the battery’s voltage and ensure that it’s within the manufacturer’s recommended range. If the battery is faulty, replace it with a new one.
Solving B1820 Wiper Rear Motor Up Relay Coil Circuit Short To Battery Issues
Once you’ve diagnosed the problem, it’s time to solve it. Here are some steps to follow:
Step 1: Repair or Replace the Wiring
If the wiring is damaged, repair or replace the affected wiring. Make sure to use the correct wiring diagram to ensure that you’re using the right wires.
Step 2: Replace the Relay
If the relay is faulty, replace it with a new one. Make sure to use the correct relay for your car’s make and model.
Step 3: Replace the Wiper Motor
If the wiper motor is faulty, replace it with a new one. Make sure to use the correct wiper motor for your car’s make and model.
Step 4: Replace the Battery
If the battery is faulty, replace it with a new one. Make sure to use the correct battery for your car’s make and model.
Conclusion
B1820 wiper rear motor up relay coil circuit short to battery issues can be frustrating, but diagnosing and solving them is not as complicated as it may seem. By following the steps outlined in this article, you can diagnose and solve this problem quickly and easily.
FAQs
1. Can I drive my car with B1820 wiper rear motor up relay coil circuit short to battery issues?
It’s not recommended to drive your car with this issue as it can cause further damage to your car’s electrical system. It’s best to diagnose and solve the problem before driving your car.
2. How much does it cost to fix B1820 wiper rear motor up relay coil circuit short to battery issues?
The cost of fixing this issue depends on the extent of the damage and the cost of replacement parts. It’s best to get a quote from a professional mechanic.
3. How can I prevent B1820 wiper rear motor up relay coil circuit short to battery issues?
Regular maintenance of your car’s electrical system can help prevent this issue. Make sure to check your car’s wiring, relays, and battery regularly and replace any damaged or worn parts.
