How to Diagnose and Solve B1799 Lamp Turn Signal Front Output Circuit Open Issues

Introduction

If you’re experiencing issues with your car’s turn signal, specifically the front output circuit, you may have encountered the B1799 error code. This code indicates that there is an open circuit in the front output circuit of the turn signal lamp. This can be a frustrating issue to deal with, but with the right tools and knowledge, you can diagnose and solve the problem yourself. In this article, we’ll provide step-by-step instructions on how to diagnose and solve B1799 Lamp Turn Signal Front Output Circuit Open issues.

Step 1: Check the Bulbs

The first step in diagnosing the B1799 error code is to check the bulbs. Start by turning on your car’s turn signal and checking the front turn signal bulbs. If they are not working, replace them with new ones. If the bulbs are working, move on to the next step.

Step 2: Check the Wiring

If the bulbs are not the issue, the next step is to check the wiring. Start by inspecting the wiring for any visible damage or wear. If you notice any damage, replace the wiring. If the wiring looks fine, use a multimeter to check for continuity in the front output circuit. If there is no continuity, there is an open circuit in the wiring that needs to be repaired.

Step 3: Check the Turn Signal Switch

If the wiring is not the issue, the next step is to check the turn signal switch. Start by removing the turn signal switch from the steering column. Use a multimeter to check for continuity in the front output circuit when the turn signal switch is activated. If there is no continuity, the turn signal switch is faulty and needs to be replaced.

Step 4: Check the Body Control Module

If the turn signal switch is not the issue, the next step is to check the body control module. Start by disconnecting the body control module and checking for any visible damage or wear. If the body control module looks fine, use a multimeter to check for continuity in the front output circuit when the turn signal switch is activated. If there is no continuity, the body control module is faulty and needs to be replaced.

Step 5: Check the Fuses

If all of the above steps have been completed and the issue still persists, the next step is to check the fuses. Start by checking the turn signal fuse to ensure it is not blown. If the fuse is blown, replace it with a new one. If the fuse is not blown, check the other fuses related to the turn signal system. If any of these fuses are blown, replace them with new ones.

Conclusion

Diagnosing and solving B1799 Lamp Turn Signal Front Output Circuit Open issues can be a daunting task, but with the right tools and knowledge, it can be done. By following the steps outlined in this article, you can diagnose and solve the issue yourself, saving time and money.

FAQs

1. Can I drive my car with the B1799 error code?

It is not recommended to drive your car with the B1799 error code as it indicates an issue with the turn signal system. This can be a safety hazard as other drivers may not be able to see your turn signals.

2. How much does it cost to replace a faulty turn signal switch?

The cost to replace a faulty turn signal switch can vary depending on the make and model of your car. On average, it can cost anywhere from $100 to $300 for parts and labor.

3. Can I fix the wiring myself?

If you have experience with car wiring and the right tools, you can fix the wiring yourself. However, if you are not experienced, it is recommended to take your car to a professional mechanic to avoid causing further damage.