AutoCodes – Generic – B399C

B399C Code - Sideview Camera Left Supply Circuit

Quick Answer

The Video Processing Control Module performs fault detection on itself and the cameras attached to it. Common causes include Faulty Sideview Camera Left, Sideview Camera Left harness is open or shorted, Sideview Camera Left 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: B399C indicates Sideview Camera Left Supply Circuit.
Common causes: Common causes include Faulty Sideview Camera Left, Sideview Camera Left harness is open or shorted, Sideview Camera Left 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.

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Code Popularity 1,342

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 25, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B399C 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 Sideview Camera Left 6V reference circuit is shorted to voltage or is shorted to ground.

OBDII Code B399C - Sideview Camera Left Supply Circuit - AutoCodes.com — B399C Code - Sideview Camera Left Supply Circuit

What does this mean?

What are the Possible Causes of the DTC B399C?

Faulty Sideview Camera Left
Sideview Camera Left harness is open or shorted
Sideview Camera Left circuit poor electrical connection
Faulty Video Processing Control Module

How to Fix the DTC B399C?

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.

What does this mean?

Code Tech Notes

B399C 01 Sideview Camera Left Supply Circuit Short to Battery
B399C 02 Sideview Camera Left Supply Circuit Short to Ground

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B399C 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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Need Help with the Code?

Get the B399C code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B399C Buick — Sideview Camera Left Supply Circuit
B399C Cadillac — Sideview Camera Left Supply Circuit
B399C Chevrolet — Sideview Camera Left Supply Circuit
B399C GMC — Sideview Camera Left Supply Circuit

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 B399C Code

1. What are common symptoms of OBDII code B399C (Sideview Camera Left Supply Circuit)?

The common symptoms of code B399C include the sideview camera on the left side of the vehicle not functioning properly or displaying distorted images.

2. What are the possible causes of OBDII code B399C?

Possible causes of code B399C include a faulty sideview camera, damaged wiring or connectors in the left supply circuit, or a malfunctioning control module.

3. How can I diagnose OBDII code B399C?

Diagnosing code B399C involves conducting a visual inspection of the sideview camera and its wiring, testing the voltage and continuity in the left supply circuit, and using a scan tool to retrieve trouble codes and data from the control module.

4. What are some repair tips for fixing OBDII code B399C?

Repair tips for addressing code B399C may include repairing or replacing damaged wiring or connectors, replacing the faulty sideview camera, and resetting the control module after repairs are completed.

5. Can I continue driving with OBDII code B399C?

It is not recommended to continue driving with OBDII code B399C unresolved, as the malfunctioning sideview camera may affect your ability to safely navigate and park the vehicle.

6. Is it possible to reset OBDII code B399C without repairs?

While clearing the trouble code with a scan tool may temporarily remove the warning light, the underlying issue causing code B399C will persist until properly diagnosed and repaired.

7. How much does it typically cost to repair OBDII code B399C?

The cost of repairing code B399C can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement, labor, and diagnostic services.

8. Can extreme weather conditions trigger OBDII code B399C?

Extreme weather conditions, such as exposure to moisture or extreme temperatures, can potentially damage the sideview camera or its wiring, leading to the triggering of code B399C.

9. Are there any preventive measures to avoid OBDII code B399C?

To prevent OBDII code B399C, regular inspection and maintenance of the sideview camera system, as well as keeping the vehicle's electrical components protected from environmental factors, can be beneficial.

10. How long does it take to repair OBDII code B399C?

The repair time for OBDII code B399C can vary depending on the extent of the issue and the availability of parts, but it typically takes a few hours to diagnose and resolve the problem.