B1085 2018 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 2018 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 2018 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 2018 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 2018 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 2018 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 2018 Chevrolet Silverado code?
Need more information on how to fix the B1085 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals
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Frequently Asked Questions about B1085 2018 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code B1085 in a 2018 Chevrolet Silverado?
The common symptoms of OBDII code B1085 in a 2018 Chevrolet Silverado may include no sound coming from the left front instrument panel speakers.
2. What could cause OBDII code B1085 in a 2018 Chevrolet Silverado?
The most common cause of OBDII code B1085 in a 2018 Chevrolet Silverado is a malfunction in the left front instrument panel audio output circuit.
3. How can I diagnose OBDII code B1085 in my 2018 Chevrolet Silverado?
To diagnose OBDII code B1085 in a 2018 Chevrolet Silverado, you may need to check the wiring and connections in the left front instrument panel audio output circuit for any damage or loose connections.
4. Can I repair OBDII code B1085 in my 2018 Chevrolet Silverado myself?
If you have experience with automotive electrical systems, you may be able to repair OBDII code B1085 in a 2018 Chevrolet Silverado yourself by checking and repairing any issues in the left front instrument panel audio output circuit.
5. Is it safe to continue driving with OBDII code B1085 in my 2018 Chevrolet Silverado?
It is generally safe to continue driving with OBDII code B1085 in a 2018 Chevrolet Silverado, but it is recommended to address the issue promptly to ensure proper functioning of the audio system.
6. How much does it cost to repair OBDII code B1085 in a 2018 Chevrolet Silverado at a dealership?
The cost of repairing OBDII code B1085 in a 2018 Chevrolet Silverado at a dealership may vary depending on the exact cause of the issue and the labor rates in your area.
7. Can extreme weather conditions trigger OBDII code B1085 in a 2018 Chevrolet Silverado?
Extreme weather conditions such as temperature fluctuations or moisture may sometimes contribute to triggering OBDII code B1085 in a 2018 Chevrolet Silverado by affecting the electrical connections.
8. Are there any recalls related to OBDII code B1085 in a 2018 Chevrolet Silverado?
There are no known recalls specifically related to OBDII code B1085 in a 2018 Chevrolet Silverado at the time of this writing.
9. Will resetting the OBDII system clear code B1085 in my 2018 Chevrolet Silverado?
Resetting the OBDII system may temporarily clear code B1085 in a 2018 Chevrolet Silverado, but if the underlying issue in the left front instrument panel audio output circuit is not addressed, the code may reappear.
10. How can I prevent OBDII code B1085 from occurring in my 2018 Chevrolet Silverado in the future?
To prevent OBDII code B1085 from occurring in a 2018 Chevrolet Silverado in the future, it is important to regularly inspect and maintain the audio system components to ensure proper functioning and address any issues promptly.
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