B1055 2015 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 2015 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 2015 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 2015 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 2015 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 2015 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 2015 Chevrolet Silverado Code
1. What does OBDII code B1055 for a 2015 Chevrolet Silverado mean?
- The code B1055 indicates a Right Rear Door Audio Output 4 Circuit issue in the vehicle's audio system.
2. What are the common symptoms associated with OBDII code B1055 in a 2015 Chevrolet Silverado?
- Common symptoms include no sound from the right rear speaker, distorted audio output, or complete audio system failure.
3. What are the possible causes of OBDII code B1055 in a 2015 Chevrolet Silverado?
- The code B1055 can be triggered by a faulty speaker, damaged wiring, a malfunctioning audio amplifier, or a problem with the audio control module.
4. How can I diagnose the issue related to OBDII code B1055 in my 2015 Chevrolet Silverado?
- You can start by checking the wiring connections to the right rear speaker, inspecting the speaker itself, testing the audio amplifier, and scanning the audio control module for faults.
5. Is it safe to continue driving my 2015 Chevrolet Silverado with OBDII code B1055 active?
- While the vehicle is safe to drive with this code, it is recommended to address the audio system issue promptly to prevent further damage or inconvenience.
6. Can I reset OBDII code B1055 in my 2015 Chevrolet Silverado using a diagnostic scanner?
- Yes, you can reset the B1055 code with a diagnostic scanner, but it is crucial to investigate and resolve the underlying audio system problem to prevent the code from reoccurring.
7. How much does it typically cost to repair OBDII code B1055 in a 2015 Chevrolet Silverado?
- Repair costs for B1055 can vary depending on the exact cause of the issue, but expenses may include parts replacement, labor fees, and diagnostic charges.
8. Are there any DIY repair tips for addressing OBDII code B1055 in a 2015 Chevrolet Silverado?
- DIY enthusiasts can attempt to check and repair wiring connections, inspect the speaker for damage, and troubleshoot the audio system components carefully to resolve the B1055 code.
9. Can weather conditions or moisture affect the triggering of OBDII code B1055 in a 2015 Chevrolet Silverado?
- Yes, exposure to moisture or extreme weather conditions can potentially lead to wiring corrosion or component damage, which may contribute to the activation of the B1055 code.
10. Is it advisable to seek professional help for repairing OBDII code B1055 in a 2015 Chevrolet Silverado?
- If you are unsure about diagnosing or repairing the audio system issue related to B1055, it is recommended to consult a qualified mechanic or audio specialist for accurate diagnosis and repair.
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