AutoCodes – GMC – B1280 GMC

B1280 GMC Code - Rear Seat Entertainment Input Signal Circuit

Quick Answer

The rear displays are located in the back of the driver and front passenger seats. Common causes include Faulty Rear Video Display, Rear Video Display harness is open or shorted, Rear 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: B1280 GMC indicates Rear Seat Entertainment Input Signal Circuit .
Common causes: Common causes include Faulty Rear Video Display, Rear Video Display harness is open or shorted, Rear 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 1,757

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
Cost to Diagnose
FAQs
Comments
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Code B1280 GMC Description

The rear displays are located in the back of the driver and front passenger seats. The rear seatback display screens show video from the disc player.
The seatback displays receive power and ground from the vehicle harness. A discrete control circuit from the disc player is used to control the power state of the displays.
The displays receive all other video, audio, and control information via the Low Voltage Differential Signaling (LVDS) cable. The LVDS cable connected to the disc player contains two pairs of data circuits, one pair for each of the rear displays. A splitter cable is used to separate the data circuits to each individual display, providing separate information to each display.

OBDII Code B1280 GMC - Rear Seat Entertainment Input Signal Circuit - AutoCodes.com — B1280 GMC Code - Rear Seat Entertainment Input Signal Circuit

What does this mean?

What are the Possible Causes of the DTC B1280 GMC?

Faulty Rear Video Display
Rear Video Display harness is open or shorted
Rear Video Display circuit poor electrical connection
Faulty Media Disc Player
Faulty Low Voltage Differential Signaling (LVDS) Cable

How to Fix the DTC B1280 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1280 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.

Need more information about the B1280 GMC code?

Need more information on how to fix the B1280 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific GMC Models

B1280 2014 GMC Sierra — Rear Seat Entertainment Input Signal Circuit
B1280 2015 GMC Sierra — Rear Seat Entertainment Input Signal Circuit
B1280 2016 GMC Sierra — Rear Seat Entertainment Input Signal Circuit
B1280 2017 GMC Sierra — Rear Seat Entertainment Input Signal Circuit
B1280 2018 GMC Sierra — Rear Seat Entertainment Input Signal 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 B1280 GMC Code

1. What are the common symptoms of OBDII code B1280 GMC?

The common symptoms of OBDII code B1280 GMC include non-functional rear seat entertainment system, no video or audio input, and error messages on the display.

2. What are the possible causes of OBDII code B1280 GMC?

Possible causes of OBDII code B1280 GMC include a faulty rear seat entertainment control module, damaged wiring or connectors in the input signal circuit, or a defective rear seat entertainment display unit.

3. How can I diagnose the issue related to OBDII code B1280 GMC?

Diagnosing the issue related to OBDII code B1280 GMC involves inspecting the wiring and connectors in the rear seat entertainment input signal circuit, testing the rear seat entertainment control module, and checking the display unit for any faults.

4. Can I repair OBDII code B1280 GMC on my own?

If you have experience working with automotive electrical systems and the necessary tools, you may be able to repair OBDII code B1280 GMC on your own. However, it is recommended to consult a professional technician for accurate diagnosis and repair.

5. Are there any simple troubleshooting steps I can take for OBDII code B1280 GMC?

Simple troubleshooting steps for OBDII code B1280 GMC include checking the input connections, resetting the rear seat entertainment system, and inspecting the fuse related to the entertainment system.

6. Is it safe to continue driving with OBDII code B1280 GMC unresolved?

It is generally safe to continue driving with OBDII code B1280 GMC unresolved, as it mainly affects the rear seat entertainment system. However, it is recommended to address the issue promptly to restore functionality to the entertainment system.

7. How much does it typically cost to repair OBDII code B1280 GMC?

The cost to repair OBDII code B1280 GMC can vary depending on the extent of the issue, parts needed for replacement, and labor costs. It is advisable to get a diagnostic assessment from a qualified technician to determine the exact repair cost.

8. Can a faulty rear seat entertainment input signal circuit cause other issues in the vehicle?

A faulty rear seat entertainment input signal circuit is unlikely to cause other major issues in the vehicle, as it is a specific component related to the entertainment system. However, addressing the problem promptly is recommended to prevent any further complications.

9. Will resetting the vehicle's computer system resolve OBDII code B1280 GMC?

Resetting the vehicle's computer system may temporarily clear the error code, but it is unlikely to resolve the underlying issue causing OBDII code B1280 GMC. It is best to diagnose the problem and perform the necessary repairs for a lasting solution.

10. How long does it take to repair OBDII code B1280 GMC?

The time taken to repair OBDII code B1280 GMC can vary depending on the complexity of the issue, availability of parts, and the technician's expertise. In general, it may take a few hours to a day to diagnose and repair the problem.