B1075 2016 GMC Sierra Code - Right Rear Door Audio Output 6 Circuit
Quick Answer
The Media Oriented Systems Transport (MOST) is a high-speed multimedia network technology. Common causes include Faulty Audio Amplifier, Faulty Left Rear Door Speaker, Right Rear Door Speaker harness is open or shorted. 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
- B1075 2016 GMC Sierra indicates Right Rear Door Audio Output 6 Circuit .
- Common causes
- Common causes include Faulty Audio Amplifier, Faulty Left Rear Door Speaker, Right Rear Door Speaker harness is open or shorted.
- 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.
Code B1075 2016 GMC Sierra Description
The audio amplifier is a participant on the MOST network. The audio amplifier receives audio input and control information from the MOST bus.
Each of the audio output channel circuits (+) and (−), at the audio amplifier have a DC bias voltage that is approximately one-half of the battery voltage. When using a DMM, each of the audio output channel circuits will measure approximately 6.5V DC. The audio being played on the system is produced by a varying AC voltage that is centered around the DC bias voltage on the same circuit. The AC voltage is what causes the speaker cone to move and produce sound.
What are the Possible Causes of the DTC B1075 2016 GMC Sierra?
- Faulty Audio Amplifier
- Faulty Left Rear Door Speaker
- Right Rear Door Speaker harness is open or shorted
- Right Rear Door Speaker circuit poor electrical connection
How to Fix the DTC B1075 2016 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.
Code Tech Notes
B1075:02 Right Rear Door Audio Output 6 Circuit Short to Ground
B1075:04 Right Rear Door Audio Output 6 Circuit Open
User Submitted Video
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1075 2016 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 B1075 2016 GMC Sierra code?
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Frequently Asked Questions about B1075 2016 GMC Sierra Code
1. What does the OBDII code B1075 mean on a 2016 GMC Sierra?
B1075 indicates a fault in the Right Rear Door Audio Output 6 Circuit, which typically relates to the audio system wiring or speaker in the right rear door.
2. What are the common symptoms of the B1075 code?
Common symptoms include no sound or distorted audio from the right rear door speaker, or intermittent audio issues.
3. What causes the B1075 code to appear?
The code can be caused by a damaged speaker, faulty wiring or connectors, a malfunctioning audio amplifier, or a software issue in the audio control module.
4. How can I diagnose the B1075 code on my GMC Sierra?
Start by inspecting the wiring and connectors to the right rear door speaker for damage or corrosion, and test the speaker for functionality. Use a scan tool to check for additional audio system codes.
5. Can a blown speaker cause the B1075 code?
Yes, a blown or malfunctioning right rear door speaker can trigger this code because the circuit cannot complete or function as expected.
6. Is the B1075 code related to the audio amplifier?
It can be. If the amplifier is not sending signals correctly to the right rear door speaker, it may cause this code to appear.
7. How do I fix the B1075 code on my 2016 GMC Sierra?
Repair or replace damaged wiring, connectors, or the right rear door speaker. If these are fine, consider testing or replacing the audio amplifier or reprogramming the audio control module.
8. Can the B1075 code cause issues with other speakers?
No, this code specifically relates to the right rear door speaker circuit and typically won’t affect other speakers unless there’s a broader system issue.
9. Is the B1075 code safe to ignore?
While it doesn’t affect vehicle safety, ignoring this code may result in continued audio issues and potential damage to the audio system over time.
10. Do I need special tools to fix the B1075 code?
You may need a multimeter to test wiring, a scan tool to clear the code, and basic tools to access the speaker and connectors.
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