B1085 2016 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 2016 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.
Code B1085 2016 Chevrolet Silverado 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 B1085 2016 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 2016 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.
Code Tech Notes
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 2016 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 2016 Chevrolet Silverado code?
Need more information on how to fix the B1085 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1085 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B1085 2016 Chevrolet Silverado Code
1. What does the OBDII code B1085 mean on a 2016 Chevrolet Silverado?
B1085 refers to a fault in the "Left Front Instrument Panel Audio Output 7 Circuit," indicating an issue with the audio signal or wiring for the left front speaker.
2. What are common symptoms of the B1085 code in a 2016 Chevrolet Silverado?
Symptoms may include no sound or distorted audio from the left front speaker or intermittent audio issues.
3. What causes the B1085 code to appear?
Common causes include a faulty speaker, damaged wiring, a loose connection, or an issue with the audio amplifier or radio module.
4. How can I diagnose the B1085 code?
Start by inspecting the speaker, wiring, and connectors for damage or disconnections. Use a multimeter to check for continuity and proper voltage in the circuit.
5. Can a blown speaker trigger the B1085 code?
Yes, a blown or malfunctioning speaker can disrupt the circuit and cause this code to appear.
6. Is the audio amplifier a possible cause of the B1085 code?
Yes, a defective audio amplifier can prevent proper signal output to the left front speaker, triggering the code.
7. How do you repair the B1085 code on a 2016 Chevrolet Silverado?
Repairs may involve replacing the left front speaker, repairing or replacing damaged wiring, securing loose connections, or replacing the audio amplifier if faulty.
8. Can resetting the code fix the problem?
Resetting the code may temporarily clear it, but if the underlying issue isn’t resolved, the code will likely return.
9. How much does it cost to fix the B1085 code?
Repair costs vary depending on the issue; replacing a speaker may cost $50-$200, while amplifier repairs or replacements could be $300-$800.
10. Is it safe to drive with the B1085 code?
Yes, it’s safe to drive, but the audio issue may persist, affecting sound quality or functionality in the vehicle.
Discuss the causes and fixes for B1085 2016 Chevrolet Silverado OBDII Code
Code B1085 2016 Chevrolet Silverado comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
