B1065 2014 GMC Sierra Code - Left Rear Door Audio Output 5 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, Left 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
- B1065 2014 GMC Sierra indicates Left Rear Door Audio Output 5 Circuit.
- Common causes
- Common causes include Faulty Audio Amplifier, Faulty Left Rear Door Speaker, Left 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 B1065 2014 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 B1065 2014 GMC Sierra?
- Faulty Audio Amplifier
- Faulty Left Rear Door Speaker
- Left Rear Door Speaker harness is open or shorted
- Left Rear Door Speaker circuit poor electrical connection
How to Fix the DTC B1065 2014 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
B1065:02 Left Rear Door Audio Output 5 Circuit Short to Ground
B1065:04 Left Rear Door Audio Output 5 Circuit Open
User Submitted Video
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1065 2014 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 B1065 2014 GMC Sierra code?
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Frequently Asked Questions about B1065 2014 GMC Sierra Code
1. What does OBDII code B1065 mean on a 2014 GMC Sierra?
Code B1065 indicates an issue with the Left Rear Door Audio Output 5 Circuit, which typically involves the wiring, speaker, or audio control module for the rear left door.
2. What are the common symptoms of code B1065 in a 2014 GMC Sierra?
Common symptoms include no sound or distorted sound from the left rear door speaker, and possibly a stored diagnostic trouble code (DTC) in the vehicle's memory.
3. What causes code B1065 in a 2014 GMC Sierra?
The code can be caused by a faulty speaker, damaged or corroded wiring, a loose connection, or a malfunctioning audio control module.
4. Can a blown speaker cause the B1065 code?
Yes, a blown or damaged speaker in the left rear door can trigger code B1065 since the circuit will not function properly.
5. How do I diagnose code B1065 on my 2014 GMC Sierra?
Start by inspecting the left rear door speaker and its wiring for damage, corrosion, or disconnections. Use a multimeter to test continuity and check the audio control module if no obvious issues are found.
6. Can I clear the B1065 code without fixing the issue?
You can clear the code temporarily, but it will return if the underlying problem with the Left Rear Door Audio Output 5 Circuit is not resolved.
7. Is the audio control module a common cause of B1065?
While less common, a faulty audio control module can cause the B1065 code if it fails to send the proper signals to the left rear door speaker.
8. How much does it cost to repair code B1065 on a 2014 GMC Sierra?
Repair costs can vary widely, ranging from $50 to $150 for a speaker replacement to $500 or more if the audio control module needs replacement.
9. Can I repair code B1065 myself?
If you have basic automotive knowledge, you can inspect and replace the speaker or repair damaged wiring. However, diagnosing or replacing the audio control module may require professional assistance.
10. Will code B1065 affect other vehicle systems?
No, this code is specific to the audio system and will not impact other vehicle systems, but it may reduce overall audio performance.
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