AutoCodes – GMC – B1280 2018 GMC Sierra

B1280 2018 GMC Sierra 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 2018 GMC Sierra 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 431

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 2018 GMC Sierra 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 2018 GMC Sierra - Rear Seat Entertainment Input Signal Circuit - AutoCodes.com — B1280 2018 GMC Sierra Code - Rear Seat Entertainment Input Signal Circuit

What does this mean?

What are the Possible Causes of the DTC B1280 2018 GMC Sierra?

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 2018 GMC Sierra?

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 2018 GMC Sierra 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 2018 GMC Sierra code?

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Need Help with the Code?

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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 B1280 2018 GMC Sierra Code

1. What does OBDII code B1280 mean for a 2018 GMC Sierra?

This code indicates a problem with the Rear Seat Entertainment Input Signal Circuit in the vehicle.

2. What are the common symptoms of OBDII code B1280 in a 2018 GMC Sierra?

Common symptoms include a malfunctioning rear seat entertainment system, loss of audio or video signal, and blank screens.

3. What are the possible causes of OBDII code B1280 in a 2018 GMC Sierra?

Causes may include a faulty rear seat entertainment module, damaged wiring or connectors, or a defective input signal source.

4. How can I diagnose OBDII code B1280 in my 2018 GMC Sierra?

Diagnosis involves inspecting the rear seat entertainment system components, checking for loose connections, and testing the input signal source.

5. Can I repair OBDII code B1280 in my 2018 GMC Sierra myself?

If you have experience with automotive electronics, you may be able to repair this issue by replacing damaged components or repairing faulty wiring.

6. Is it safe to drive my 2018 GMC Sierra with OBDII code B1280 active?

It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to restore the functionality of the rear seat entertainment system.

7. Will resetting the OBDII code B1280 in my 2018 GMC Sierra make it go away permanently?

Resetting the code may temporarily clear the warning, but if the underlying issue is not fixed, the code is likely to return.

8. How much does it typically cost to repair OBDII code B1280 in a 2018 GMC Sierra at a dealership?

The cost of repairs can vary depending on the exact cause of the issue, but it may involve diagnostic fees, parts replacement costs, and labor charges.

9. Can extreme temperatures or humidity affect the Rear Seat Entertainment Input Signal Circuit in a 2018 GMC Sierra?

Yes, extreme temperatures or humidity can potentially damage the components of the system, leading to issues like OBDII code B1280.

10. Are there any preventive maintenance steps I can take to avoid OBDII code B1280 in my 2018 GMC Sierra?

Regularly checking and maintaining the rear seat entertainment system, ensuring proper connections, and protecting components from moisture can help prevent this code from appearing.