B1055 Chevrolet Code - Right Rear Door Audio Output 4 Circuit
Quick Answer
Vehicles without Amplifier: Each of the audio output channel circuits (+) and (-), at the radio have a DC bias voltage that is approximately one-half of battery voltage. Common causes include Faulty Radio Unit, Faulty Audio Amplifier (If equipped), Faulty Right Rear Door Speaker. 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
- B1055 Chevrolet indicates Right Rear Door Audio Output 4 Circuit.
- Common causes
- Common causes include Faulty Radio Unit, Faulty Audio Amplifier (If equipped), Faulty Right Rear Door Speaker.
- 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 B1055 Chevrolet Description
Each of the audio output channel circuits (+) and (-), at the radio have a DC bias voltage that is approximately one-half of battery voltage. When using a DMM, each of the audio output channel circuits will measure approximately 6.5 V 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 frequency (Hz) of the AC voltage signal is directly related to the frequency of the input (audio source playing) to the audio system. Both the DC bias voltage and the AC voltage signals are needed for the audio system to properly produce sound.
Vehicles with Amplifier:
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.
What are the Possible Causes of the DTC B1055 Chevrolet?
- Faulty Radio Unit
- Faulty Audio Amplifier (If equipped)
- Faulty Right Rear Door Speaker
- Right Rear Door Speaker harness is open or shorted
- Right Rear Door Speaker circuit poor electrical connection
How to Fix the DTC B1055 Chevrolet?
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
B1055:02 Right Rear Door Audio Output 4 Circuit Short to Ground
B1055:04 Right Rear Door Audio Output 4 Circuit Open
User Submitted Video
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1055 Chevrolet 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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Information for Specific Chevrolet Models
- B1055 2014 Chevrolet Silverado — Right Rear Door Audio Output 4 Circuit
- B1055 2015 Chevrolet Silverado — Right Rear Door Audio Output 4 Circuit
- B1055 2016 Chevrolet Silverado — Right Rear Door Audio Output 4 Circuit
- B1055 2017 Chevrolet Silverado — Right Rear Door Audio Output 4 Circuit
- B1055 2018 Chevrolet Silverado — Right Rear Door Audio Output 4 Circuit
Frequently Asked Questions about B1055 Chevrolet Code
1. What are the common symptoms of OBDII code B1055 in a Chevrolet related to the right rear door audio output circuit?
The common symptoms include loss of sound from the right rear speakers, distorted audio output, or complete silence from the right rear speaker.
2. What are the possible causes of OBDII code B1055 in a Chevrolet affecting the right rear door audio output circuit?
Possible causes of this code may include a faulty speaker, damaged wiring, a defective audio amplifier, or a malfunctioning audio control module.
3. How can I diagnose the OBDII code B1055 in a Chevrolet for the right rear door audio output circuit issue?
To diagnose this code, you can start by checking the right rear speaker for connectivity, inspecting the wiring for any visible damage, testing the audio amplifier for proper functionality, and scanning the audio control module for error codes.
4. Are there any DIY repair tips for fixing the OBDII code B1055 in a Chevrolet related to the right rear door audio output circuit?
DIY repair tips may include checking and repairing any damaged wiring, replacing a faulty speaker, resetting the audio system, or updating the audio control module software.
5. Can OBDII code B1055 in a Chevrolet impacting the right rear door audio output circuit be reset without repairs?
Resetting the code without addressing the underlying issue may temporarily clear the error code, but the problem will likely reoccur until the root cause is fixed.
6. Is it safe to continue driving a Chevrolet with OBDII code B1055 affecting the right rear door audio output circuit?
While driving with this code may not directly affect the vehicle's performance or safety, it can be inconvenient to have audio issues. It is recommended to address the problem to restore proper audio functionality.
7. How much can I expect to pay for professional repairs of OBDII code B1055 in a Chevrolet related to the right rear door audio output circuit?
The cost of repairs can vary depending on the exact cause of the issue and the labor rates in your area. It's advisable to consult a professional technician for a diagnosis and a repair estimate.
8. Does the OBDII code B1055 in a Chevrolet impacting the right rear door audio output circuit require specialized tools for diagnosis and repair?
Diagnosing and repairing this code may require basic tools like a multimeter, wiring diagrams, and diagnostic scan tools to troubleshoot the audio system components effectively.
9. Can environmental factors like moisture or extreme temperatures cause OBDII code B1055 in a Chevrolet affecting the right rear door audio output circuit?
Yes, environmental factors like moisture intrusion or temperature fluctuations can potentially damage the audio system components, leading to the triggering of this OBDII code.
10. How can regular maintenance help prevent OBDII code B1055 in a Chevrolet related to the right rear door audio output circuit?
Regular maintenance, including inspecting the audio system components, keeping the vehicle dry, and addressing any audio issues promptly, can help prevent the occurrence of this OBDII code.
Discuss the causes and fixes for B1055 Chevrolet OBDII Code
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I got code B1055-04, but I have a two door model, so what speaker is the issue? My description is calling it Right Rear Audio Output Circuit - Circuit Open
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