B1065:01 Code - Left Rear Door Audio Output 5 Circuit Short to Battery
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
- B1065:01 indicates Left Rear Door Audio Output 5 Circuit Short to Battery.
- 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 B1065:01 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.
The Diagnostic Trouble Code (DTC) will be set when a short to voltage (battery) is detected on the specified (+) (positive) or (−) (negative) signal circuit.
What are the Possible Causes of the DTC B1065:01?
- 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 B1065:01?
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
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1065:01 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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Frequently Asked Questions about B1065:01 Code
What does OBDII code B1065:01 mean?
Code B1065:01 indicates a short to battery in the Left Rear Door Audio Output 5 Circuit, which may be caused by a wiring or component issue.
What are the symptoms of code B1065:01?
Common symptoms include distorted or no audio from the left rear speaker, or intermittent audio issues in that location.
What causes code B1065:01?
This code is typically caused by damaged wiring, a short circuit, faulty speaker connections, or a malfunctioning audio amplifier.
Can I still drive with code B1065:01?
Yes, this code does not affect vehicle drivability, but it may impact audio system performance and should be addressed to avoid further electrical issues.
How can I diagnose code B1065:01?
Inspect the wiring and connections for the left rear speaker, check for signs of damage or corrosion, and use a multimeter to test for shorts or voltage abnormalities.
What tools are needed to fix code B1065:01?
You may need a multimeter, wiring diagram, basic hand tools, and possibly soldering equipment or replacement wiring.
Will replacing the left rear speaker fix code B1065:01?
Replacing the speaker may resolve the issue if the speaker itself is faulty, but the underlying problem could also be in the wiring or audio circuit.
How much does it cost to repair code B1065:01?
Repair costs vary depending on the extent of the damage, but it can range from $50 for simple wiring fixes to a few hundred dollars if components like the audio amplifier need replacement.
Can a blown fuse cause code B1065:01?
A blown fuse is unlikely to cause this specific code, as it typically involves a short circuit rather than a loss of electrical power.
Should I reset the code after repairs?
Yes, after completing repairs, use an OBDII scanner to clear the code and verify that the issue has been resolved.
Discuss the causes and fixes for B1065:01 OBDII Code
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