Troubleshooting a Malfunctioning Backup Camera in 2014 Honda Accord

Table of Contents

1. Introduction
2. The Problem: Backup Camera Malfunction
3. Initial Diagnosis: Scanning for Fault Codes
4. Clearing Fault Codes and Testing
5. Further Investigation: Examining the Wiring Harness
6. Testing the Camera Connector
7. Troubleshooting the Ground Wire
8. Comparing with the Right Side Camera
9. Searching for a Solution
10. Replacing the Backup Camera
11. Conclusion

📷 The Problem: Backup Camera Malfunction

In this article, we will delve into the perplexing issue of a malfunctioning backup camera in a 2014 Honda Accord. The customer has reported that the backup camera on the dashboard is not functioning properly. Despite being looked at by the dealership multiple times and seemingly working momentarily after each inspection, the camera stops functioning shortly afterward. In order to address this problem effectively, we will perform a step-by-step diagnosis and troubleshooting process to identify the root cause of the issue.

Introduction

Before we jump into the details of the backup camera malfunction, let's start with a brief introduction. A backup camera, also known as a rear-view camera, is a safety feature in modern vehicles that provides drivers with a live video feed of the area behind the vehicle when it is in reverse gear. This aids in avoiding accidents and assisting in parking maneuvers. The camera is typically located on the rear of the vehicle, often near the license plate.

The Problem: Backup Camera Malfunction

The customer has a 2014 Honda Accord and has been experiencing issues with the backup camera. When the vehicle is put in reverse, the intended direction is displayed, and turning the wheel changes the display accordingly. However, there is no actual camera view. The customer has already taken the vehicle to the dealership multiple times, and while the camera seems to start working again after each visit, it stops functioning shortly afterward.

Initial Diagnosis: Scanning for Fault Codes

To begin the diagnosis, we will use a scan tool to check for any fault codes that may provide guidance in identifying the issue. Using a Snap-On scanner, we will perform a network scan of the vehicle to see if any codes point towards the backup camera problem. The network scan takes approximately 60 seconds to complete. After the scan, it is evident that there aren't any relevant codes except for those related to the door lock system and body. These codes are unlikely to be the cause of the backup camera malfunction.

Clearing Fault Codes and Testing

Since the previously found codes are unrelated to the backup camera, we decide to clear all the codes and observe if it restores the camera's operation. Clearing the codes involves using the scan tool to reset the fault codes and checking if it makes any difference to the backup camera functionality. Unfortunately, clearing the codes does not yield any improvement in the camera's operation.

Further Investigation: Examining the Wiring Harness

At this point, we begin to investigate the wiring harness of the backup camera. The customer's vehicle is a sedan, and the camera is located just above the license plate on the trunk lid. We notice that the wiring harness of the camera has been taped up, indicating that someone has previously worked on it. This raises suspicions about compromised wires within the harness, considering the flexing it undergoes during trunk lid movements.

Testing the Camera Connector

To assess the integrity of the wiring in the camera, we locate and inspect the connector behind the trunk lid's inner panel. We find the connector in good condition and perform electrical measurements on the wires. While most of the measurements are within expected parameters, we observe an issue with the red wire, which is supposed to serve as the ground for the rear-view camera. Surprisingly, we measure system voltage on the red wire, suggesting an open connection to the ground.

Troubleshooting the Ground Wire

The unexpected voltage on the supposed ground wire leads us to suspect a problem with the ground connection. We consider the possibility of a broken wire within the harness due to its frequent bending during trunk lid movements. Despite careful inspection, we find no evidence of broken wires in the taped-up portion of the harness. With the ground wire being a potential culprit, we attempt to ground it manually and observe if it restores the camera's operation. Unfortunately, grounding the wire does not result in any improvement.

Comparing with the Right Side Camera

To gain a better understanding of the backup camera circuit, we decide to compare it with the right side camera on the passenger mirror. Both cameras operate similarly, but the backup camera has additional modes. By examining the connector on the passenger side, C107, we try to identify any similarities or differences that may provide insights into the backup camera malfunction.

Searching for a Solution

After extensive troubleshooting and examining the available diagnostic information, we find ourselves without a clear solution to the backup camera malfunction. The limited troubleshooting chart and diagnostics provided by Honda do not offer a conclusive answer. We consider sourcing a replacement rear-view camera and testing it to determine if the issue lies with the camera itself.

Replacing the Backup Camera

To address the possibility of a faulty camera, the customer orders a new backup camera from Dorman. We proceed to replace the existing camera with the new one, carefully mounting it in the designated location near the license plate. With the vehicle running, we put it in reverse, and to our delight, the camera functions perfectly. The live video feed from the camera is displayed on the dashboard screen, confirming that the replacement camera has resolved the backup camera malfunction.

Conclusion

In conclusion, the perplexing issue of a malfunctioning backup camera in the 2014 Honda Accord has been successfully resolved. Through an extensive troubleshooting process, we discovered a faulty backup camera and replaced it with a new one, restoring the camera's functionality. While the exact cause of the malfunction remains uncertain, the replacement proved to be an effective solution. The customer can now enjoy the added safety and convenience offered by a fully functional backup camera.

Highlights

• The customer reported a malfunctioning backup camera in their 2014 Honda Accord.
• The camera would intermittently stop working shortly after being inspected at the dealership.
• Initial diagnosis involved scanning for fault codes and clearing them, but it did not resolve the issue.
• Further investigation focused on the wiring harness and camera connector.
• Troubleshooting the ground wire and comparing with the right side camera did not lead to a solution.
• A replacement backup camera was sourced and successfully installed, resolving the malfunction.

FAQs

Q: Why did the backup camera in the 2014 Honda Accord malfunction? A: The exact cause of the backup camera malfunction remains uncertain. Despite extensive diagnosis and troubleshooting, no definitive cause was found. The issue was resolved by replacing the faulty camera with a new one.

Q: How was the faulty backup camera in the Honda Accord diagnosed? A: The diagnosis process involved scanning for fault codes, examining the wiring harness, testing the camera connector, and troubleshooting the ground wire. However, these steps did not reveal the exact cause of the malfunction.

Q: What steps were taken to resolve the backup camera malfunction? A: After exhausting all possible troubleshooting steps, a replacement backup camera was sourced and installed in the Honda Accord. The new camera restored the functionality of the backup camera.

Q: Can a backup camera malfunction be repaired or does it require a replacement? A: In some cases, a backup camera malfunction may be repaired if the issue lies with the wiring or connections. However, if the camera itself is faulty, a replacement is often necessary to restore functionality.

Q: How long did it take to diagnose and resolve the backup camera malfunction? A: The diagnosis process and troubleshooting spanned a considerable amount of time, with multiple visits to the dealership. However, the actual resolution came after sourcing a replacement camera, which is a relatively quick procedure.