How to Diagnose and Solve B1806 Lamp Tail 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 B1806 Lamp Tail Output Circuit Failure. This problem can be frustrating, but with the right knowledge and tools, you can diagnose and solve it quickly. In this article, we will discuss how to diagnose and solve B1806 Lamp Tail Output Circuit Failure issues.

What is B1806 Lamp Tail Output Circuit Failure?

B1806 Lamp Tail Output Circuit Failure is a diagnostic trouble code (DTC) that indicates a problem with the tail lamp output circuit. This code is usually triggered when there is a short circuit or an open circuit in the tail lamp output circuit. The tail lamp output circuit is responsible for providing power to the tail lamps, which are essential for visibility and safety while driving.

Diagnosing B1806 Lamp Tail Output Circuit Failure

To diagnose B1806 Lamp Tail Output 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, which 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 B1806 in this case.

Step 3: Check the Tail Lamp Output Circuit

Check the tail lamp output circuit for any signs of damage or wear. Look for broken wires, loose connections, or corroded terminals. If you find any damage, repair or replace the affected parts.

Step 4: Check the Tail Lamp Bulbs

Check the tail lamp bulbs for any signs of damage or wear. Look for burnt-out bulbs, broken filaments, or loose connections. If you find any damage, replace the affected bulbs.

Step 5: Clear the DTC

Clear the DTC by selecting the “Clear Codes” option on the diagnostic scanner. This will reset the system and turn off the check engine light.

Solving B1806 Lamp Tail Output Circuit Failure

To solve B1806 Lamp Tail Output Circuit Failure, follow these steps:

Step 1: Replace the Tail Lamp Bulbs

If the tail lamp bulbs are damaged or burnt out, replace them with new ones. Make sure to use the correct type of bulbs for your car.

Step 2: Repair or Replace the Tail Lamp Output Circuit

If the tail lamp output circuit is damaged or worn, repair or replace the affected parts. This may involve replacing the wiring harness, connectors, or other components.

Step 3: Test the System

Test the system by turning on the tail lamps and checking for proper operation. Make sure that all the tail lamps are working correctly and that there are no warning lights on the dashboard.

Conclusion

B1806 Lamp Tail Output Circuit Failure can be a frustrating problem for car owners, but with the right knowledge and tools, it can be diagnosed and solved quickly. By following the steps outlined in this article, you can diagnose and solve B1806 Lamp Tail Output Circuit Failure issues and ensure that your car is safe and reliable on the road.

FAQs

1. Can I drive my car with B1806 Lamp Tail Output Circuit Failure?

It’s not recommended to drive your car with B1806 Lamp Tail Output Circuit Failure. This problem can affect the visibility and safety of your car, so it’s essential to diagnose and solve it as soon as possible.

2. How much does it cost to repair B1806 Lamp Tail Output Circuit Failure?

The cost of repairing B1806 Lamp Tail Output Circuit Failure can vary depending on the extent of the damage and the parts needed for repair. It’s best to consult a professional mechanic for an accurate estimate.

3. How can I prevent B1806 Lamp Tail Output Circuit Failure?

To prevent B1806 Lamp Tail Output Circuit Failure, it’s essential to maintain your car regularly. Check the tail lamps and wiring harness for any signs of damage or wear, and replace any damaged parts as soon as possible.