AutoCodes – Chevrolet – B399B Chevrolet

B399B Chevrolet Code - Rearview Camera Supply Circuit

Quick Answer

The Video Processing Control Module performs fault detection on itself and the cameras attached to it. Common causes include Faulty Rearview Camera, Rearview Camera harness is open or shorted, Rearview Camera circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B399B Chevrolet indicates Rearview Camera Supply Circuit.
Common causes
Common causes include Faulty Rearview Camera, Rearview Camera harness is open or shorted, Rearview Camera circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,628
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 25, 2020
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Code B399B Chevrolet Description

The Video Processing Control Module performs fault detection on itself and the cameras attached to it. The Diagnostic Trouble Code (DTC) sets when the Rearview camera 6V reference circuit is shorted to voltage or is shorted to ground.
OBDII Code B399B Chevrolet - Rearview Camera Supply Circuit - AutoCodes.com
B399B Chevrolet Code - Rearview Camera Supply Circuit

What are the Possible Causes of the DTC B399B Chevrolet?

  • Faulty Rearview Camera
  • Rearview Camera harness is open or shorted
  • Rearview Camera circuit poor electrical connection
  • Faulty Video Processing Control Module

How to Fix the DTC B399B Chevrolet?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B399B Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B399B Chevrolet Code

1. What are the common symptoms of OBDII code B399B in a Chevrolet related to the Rearview Camera Supply Circuit?

- Common symptoms include a non-functioning rearview camera, distorted or fuzzy display on the screen, or the camera not turning on when shifting into reverse.

2. What are the possible causes of OBDII code B399B in a Chevrolet?

- The code B399B can be triggered by issues such as a faulty rearview camera, damaged wiring harness, a defective camera control module, or a blown fuse related to the rearview camera circuit.

3. How can I diagnose the OBDII code B399B in a Chevrolet related to the Rearview Camera Supply Circuit?

- Diagnosing the code involves checking the rearview camera for physical damage, inspecting the wiring for any breaks or shorts, testing the camera control module for functionality, and verifying the fuse related to the camera circuit.

4. Can a DIY enthusiast repair OBDII code B399B in a Chevrolet, or is professional assistance required?

- Depending on the cause of the code, some repairs related to the Rearview Camera Supply Circuit can be done by DIY enthusiasts, such as replacing a faulty camera or checking and replacing a blown fuse. However, more complicated issues may require professional assistance.

5. Is it safe to drive a Chevrolet with OBDII code B399B related to the Rearview Camera Supply Circuit?

- While it is generally safe to drive the vehicle with this code, it is recommended to address the issue promptly, especially if the rearview camera is an essential safety feature for you.

6. How much can I expect to pay for repairing OBDII code B399B in a Chevrolet related to the Rearview Camera Supply Circuit?

- The cost of repairing the code B399B can vary depending on the underlying cause. Simple fixes like replacing a fuse or a camera may cost less, while more complex issues like wiring harness repairs or module replacements could be more expensive.

7. Can extreme weather conditions affect the Rearview Camera Supply Circuit and trigger OBDII code B399B in a Chevrolet?

- Yes, extreme weather conditions such as excessive heat or moisture can potentially damage the rearview camera or affect the wiring, leading to the triggering of the OBDII code B399B.

8. Are there any preventive maintenance tips to avoid encountering OBDII code B399B in a Chevrolet related to the Rearview Camera Supply Circuit?

- Regularly inspecting the rearview camera for damage, ensuring proper wiring connections, and protecting the camera from extreme weather conditions can help prevent issues that may trigger the B399B code.

9. How long does it typically take to repair OBDII code B399B in a Chevrolet related to the Rearview Camera Supply Circuit?

- The repair time can vary based on the cause of the code and the complexity of the repair. Simple fixes may take less than an hour, while more involved repairs could take several hours or even require leaving the vehicle at a repair shop.

10. Can resetting the OBDII system clear the B399B code related to the Rearview Camera Supply Circuit in a Chevrolet?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to reappear. It is recommended to diagnose and fix the root cause of the problem for a permanent solution.

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