AutoCodes – GMC – B1289 GMC

B1289 GMC Code - Video Display Brightness Control Signal

Quick Answer

The radio can control the video display brightness on vehicles equipped with Rear Seat Entertainment (RSE) video. Common causes include Faulty Video Display, Video Display harness is open or shorted, Video Display circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B1289 GMC indicates Video Display Brightness Control Signal.
Common causes: Common causes include Faulty Video Display, Video Display harness is open or shorted, Video Display circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 1,588

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 29, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1289 GMC Description

The radio can control the video display brightness on vehicles equipped with Rear Seat Entertainment (RSE) video. The radio varies a Pulse With Modulated (PWM) signal to the rear entertainment video screen to command the screen brightness to the desired level. The Diagnostic Trouble Code (DTC) will set when the radio detects a short to voltage, short to ground, or an open/high resistance in the video display brightness control circuit 400 ms after the radio activates the remote enable circuit.

OBDII Code B1289 GMC - Video Display Brightness Control Signal - AutoCodes.com — B1289 GMC Code - Video Display Brightness Control Signal

What does this mean?

What are the Possible Causes of the DTC B1289 GMC?

Faulty Video Display
Video Display harness is open or shorted
Video Display circuit poor electrical connection

How to Fix the DTC B1289 GMC?

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

DTC B1289 01 Video Display Brightness Control Signal Short to Battery
DTC B1289 02 Video Display Brightness Control Signal Short to Ground
DTC B1289 04 Video Display Brightness Control Signal Open Circuit

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1289 GMC 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 B1289 GMC Code

1. What does OBDII code B1289 for GMC indicate?

The B1289 code specifically relates to the Video Display Brightness Control Signal in a GMC vehicle.

2. What are the common symptoms of OBDII code B1289 in a GMC?

Common symptoms associated with code B1289 include issues with adjusting the brightness of the video display in the vehicle.

3. What are the possible causes of OBDII code B1289 in a GMC?

Causes of code B1289 can include issues with the video display control module, faulty wiring, or a malfunction in the brightness control circuit.

4. How can I diagnose OBDII code B1289 in my GMC?

To diagnose code B1289, it is recommended to use an OBDII scanner to read the specific error codes and then perform a thorough inspection of the video display system components.

5. Can I still drive my GMC with OBDII code B1289?

It is generally safe to drive the vehicle with code B1289, but it is important to address the underlying issue to prevent any further damage to the video display system.

6. How do I repair OBDII code B1289 in my GMC?

Repairing code B1289 may involve replacing the video display control module, repairing any damaged wiring, or addressing issues with the brightness control circuit.

7. Should I reset the OBDII code B1289 after making repairs in my GMC?

Yes, it is recommended to reset the code after making repairs to see if the issue has been successfully resolved.

8. Can a DIY enthusiast fix OBDII code B1289 in a GMC?

While some basic troubleshooting and repairs can be done by a DIY enthusiast, diagnosing and fixing complex issues related to code B1289 may require professional help.

9. Is OBDII code B1289 specific to certain GMC models?

Code B1289 can be specific to certain GMC models and may not be applicable to all vehicles in the lineup. It is important to check the specific vehicle's manual for accurate information.

10. How can I prevent OBDII code B1289 from occurring in the future in my GMC?

Regular maintenance checks, keeping the video display system clean and free of debris, and addressing any electrical issues promptly can help prevent code B1289 from occurring in the future.