B1055 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado?
- 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 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
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 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.
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Frequently Asked Questions about B1055 2018 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code B1055 in a 2018 Chevrolet Silverado related to the Right Rear Door Audio Output 4 Circuit?
- Common symptoms include loss of sound from the right rear door speaker, distorted audio, or complete silence from that specific speaker.
2. What are the possible causes of OBDII code B1055 in a 2018 Chevrolet Silverado?
- The code B1055 can be triggered by issues such as a faulty right rear door speaker, damaged wiring connections, or a malfunctioning audio amplifier.
3. How can I diagnose the root cause of OBDII code B1055 affecting the Right Rear Door Audio Output 4 Circuit in my 2018 Chevrolet Silverado?
- To diagnose the issue, you can start by visually inspecting the speaker and wiring connections. Using a multimeter to check for continuity and proper voltage can help pinpoint the exact fault.
4. Can I repair OBDII code B1055 in my 2018 Chevrolet Silverado on my own?
- Depending on your skill level, repairing the B1055 code may involve replacing the right rear door speaker, repairing damaged wiring, or addressing issues with the audio system components. Professional help may be required for complex repairs.
5. Are there any troubleshooting tips to consider before seeking professional help for OBDII code B1055 in a 2018 Chevrolet Silverado?
- Before seeking professional help, you can try resetting the audio system by disconnecting the car battery for a few minutes. Checking the fuses related to the audio system can also be a good troubleshooting step.
6. Is it safe to continue driving my 2018 Chevrolet Silverado with OBDII code B1055 related to the Right Rear Door Audio Output 4 Circuit?
- While the vehicle is generally safe to drive with this code, it's important to address the issue promptly to prevent further damage to the audio system components and ensure proper functionality.
7. How much does it typically cost to repair OBDII code B1055 in a 2018 Chevrolet Silverado at a dealership or auto repair shop?
- The cost of repairing OBDII code B1055 can vary depending on the exact cause of the issue and the labor rates of the service provider. It's recommended to obtain quotes from different shops for an accurate estimate.
8. Can environmental factors such as extreme temperatures or moisture play a role in triggering OBDII code B1055 in a 2018 Chevrolet Silverado?
- Yes, environmental factors like extreme temperatures or moisture can contribute to electrical issues that may trigger the B1055 code. Properly sealing wiring connections and protecting components can help prevent such problems.
9. Are there any recalls or technical service bulletins related to OBDII code B1055 in a 2018 Chevrolet Silverado?
- Checking with the manufacturer or authorized Chevrolet service centers can provide information on any recalls or technical service bulletins related to OBDII code B1055 for your specific vehicle.
10. What steps can I take to prevent OBDII code B1055 from recurring in my 2018 Chevrolet Silverado after it has been repaired?
- To prevent the code from recurring, ensure proper installation of any replaced components, regularly inspect wiring for damage, and avoid exposing the audio system to harsh environmental conditions. Regular maintenance can also help prevent similar issues in the future.
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