How to Diagnose and Solve B1802 Lamp Turn Signal Rear Output Circuit Failure Issues
Introduction
As a car owner, it’s essential to know how to diagnose and solve common car problems. One of the most common issues that car owners face is the B1802 Lamp Turn Signal Rear Output Circuit Failure. This problem can be frustrating, especially when you’re driving, and your turn signals aren’t working correctly. In this article, we’ll discuss how to diagnose and solve this issue.
What is B1802 Lamp Turn Signal Rear Output Circuit Failure?
B1802 Lamp Turn Signal Rear Output Circuit Failure is a diagnostic trouble code (DTC) that indicates a problem with the turn signal circuit. This code is usually triggered when there’s a fault in the wiring or a malfunction in the turn signal switch. When this code is triggered, the turn signals won’t work correctly, and the driver won’t be able to signal their intentions to other drivers on the road.
Diagnosing B1802 Lamp Turn Signal Rear Output Circuit Failure
To diagnose B1802 Lamp Turn Signal Rear Output Circuit Failure, you’ll need a diagnostic scanner that can read DTCs. Here are the steps to follow:
Step 1: Connect the Diagnostic Scanner
Connect the diagnostic scanner to the OBD-II port under the dashboard. Turn on the ignition and wait for the scanner to establish a connection with the car’s computer.
Step 2: Read the DTCs
Once the scanner has established a connection, read the DTCs. Look for the B1802 code, which indicates a problem with the turn signal circuit.
Step 3: Inspect the Wiring
Inspect the wiring for any signs of damage or wear. Look for frayed wires, loose connections, or corroded terminals. If you find any issues, repair or replace the wiring as necessary.
Step 4: Check the Turn Signal Switch
Check the turn signal switch for any signs of malfunction. Test the switch by turning on the turn signals and checking if they work correctly. If the switch is faulty, replace it with a new one.
Solving B1802 Lamp Turn Signal Rear Output Circuit Failure
Once you’ve diagnosed the problem, it’s time to solve it. Here are the steps to follow:
Step 1: Repair or Replace the Wiring
If you found any issues with the wiring during the diagnostic process, repair or replace the wiring as necessary. Make sure to use the correct gauge wire and connectors.
Step 2: Replace the Turn Signal Switch
If the turn signal switch is faulty, replace it with a new one. Make sure to get the correct replacement part for your car’s make and model.
Step 3: Clear the DTCs
Once you’ve solved the problem, clear the DTCs using the diagnostic scanner. This will reset the car’s computer and turn off the check engine light.
Conclusion
B1802 Lamp Turn Signal Rear Output Circuit Failure can be a frustrating problem for car owners. However, by following the steps outlined in this article, you can diagnose and solve this issue quickly and easily. Remember to always use the correct tools and replacement parts when working on your car.
FAQs
1. Can I still drive my car if the turn signals aren’t working?
It’s not recommended to drive your car if the turn signals aren’t working correctly. This can be dangerous, as other drivers won’t be able to see your intentions on the road.
2. How much does it cost to replace a turn signal switch?
The cost of replacing a turn signal switch varies depending on the make and model of your car. On average, it can cost anywhere from $50 to $200.
3. Can I diagnose and solve B1802 Lamp Turn Signal Rear Output Circuit Failure myself?
If you have experience working on cars and the necessary tools, you can diagnose and solve B1802 Lamp Turn Signal Rear Output Circuit Failure yourself. However, if you’re not confident in your abilities, it’s best to take your car to a professional mechanic.
