AutoCodes – Chevrolet – B1085 2014 Chevrolet Silverado

B1085 2014 Chevrolet Silverado Code - Left Front Instrument Panel Audio Output 7 Circuit

Quick Answer

The Media Oriented Systems Transport (MOST) is a high-speed multimedia network technology. Common causes include Faulty Audio Amplifier, Faulty Left Front Instrument Panel Speaker, Left Front Instrument Panel 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: B1085 2014 Chevrolet Silverado indicates Left Front Instrument Panel Audio Output 7 Circuit.
Common causes: Common causes include Faulty Audio Amplifier, Faulty Left Front Instrument Panel Speaker, Left Front Instrument Panel 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.

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Code Popularity 220

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 18, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1085 2014 Chevrolet Silverado Description

The Media Oriented Systems Transport (MOST) is a high-speed multimedia network technology. The serial MOST bus uses a ring topology and synchronous data communication to transmit audio, video, data and control information between any devices attached.
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.

OBDII Code B1085 2014 Chevrolet Silverado - Left Front Instrument Panel Audio Output 7 Circuit - AutoCodes.com — B1085 2014 Chevrolet Silverado Code - Left Front Instrument Panel Audio Output 7 Circuit

What does this mean?

What are the Possible Causes of the DTC B1085 2014 Chevrolet Silverado?

Faulty Audio Amplifier
Faulty Left Front Instrument Panel Speaker
Left Front Instrument Panel Speaker harness is open or shorted
Left Front Instrument Panel Speaker circuit poor electrical connection

How to Fix the DTC B1085 2014 Chevrolet Silverado?

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 does this mean?

Code Tech Notes

B1085:01 Left Front Instrument Panel Audio Output 7 Circuit Short to Battery
B1085:02 Left Front Instrument Panel Audio Output 7 Circuit Short to Ground
B1085:04 Left Front Instrument Panel Audio Output 7 Circuit Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1085 2014 Chevrolet Silverado 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 B1085 2014 Chevrolet Silverado code?

Need more information on how to fix the B1085 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

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 B1085 2014 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B1085 in a 2014 Chevrolet Silverado?

The common symptoms of OBDII code B1085 in a 2014 Chevrolet Silverado include a malfunctioning left front instrument panel audio output, such as no sound coming from the left front speakers.

2. What does OBDII code B1085 indicate in a 2014 Chevrolet Silverado?

OBDII code B1085 in a 2014 Chevrolet Silverado indicates a fault with the Left Front Instrument Panel Audio Output 7 Circuit.

3. What are the possible causes of OBDII code B1085 in a 2014 Chevrolet Silverado?

Possible causes of OBDII code B1085 in a 2014 Chevrolet Silverado include wiring issues, a faulty audio amplifier, a defective audio head unit, or a malfunctioning speaker.

4. How can I diagnose OBDII code B1085 in my 2014 Chevrolet Silverado?

To diagnose OBDII code B1085 in your 2014 Chevrolet Silverado, you can perform a visual inspection of the wiring, test the audio components for proper functionality, and use a diagnostic scan tool to pinpoint the exact cause of the issue.

5. Can I repair OBDII code B1085 in my 2014 Chevrolet Silverado myself?

Depending on your skill level and experience with automotive repairs, you may be able to repair OBDII code B1085 in your 2014 Chevrolet Silverado yourself. However, complex electrical issues may require professional assistance.

6. Is it safe to continue driving with OBDII code B1085 in my 2014 Chevrolet Silverado?

It is generally safe to continue driving with OBDII code B1085 in your 2014 Chevrolet Silverado, but it's recommended to address the issue promptly to avoid potential audio system malfunctions or safety concerns.

7. How much does it cost to repair OBDII code B1085 in a 2014 Chevrolet Silverado?

The cost to repair OBDII code B1085 in a 2014 Chevrolet Silverado can vary depending on the exact cause of the issue, parts needed for replacement, and labor costs. It's advisable to obtain quotes from automotive professionals for an accurate estimate.

8. Can a faulty left front instrument panel audio output affect other vehicle systems in a 2014 Chevrolet Silverado?

While a faulty left front instrument panel audio output may not directly affect other critical vehicle systems, it can impact your overall audio experience and comfort while driving the 2014 Chevrolet Silverado.

9. Are there any recalls related to OBDII code B1085 in a 2014 Chevrolet Silverado?

Recalls related to OBDII code B1085 in a 2014 Chevrolet Silverado would be issued by the manufacturer. It's recommended to check with a Chevrolet dealership or visit the National Highway Traffic Safety Administration (NHTSA) website for any relevant recalls.

10. How can I prevent OBDII code B1085 from occurring in my 2014 Chevrolet Silverado in the future?

To help prevent OBDII code B1085 from occurring in your 2014 Chevrolet Silverado, it's essential to maintain your vehicle's audio system components, address any wiring issues promptly, and follow proper maintenance schedules to ensure optimal performance.