B127A Chevrolet Code - Auxiliary Video Input Signal Circuit
Quick Answer
The rear seat entertainment system has an auxiliary input assembly that contains a USB port, an SD card reader, RCA-type audio/video jacks, and a wired headphone jack with volume control. Common causes include Faulty Audio/Video Input Adapter, Audio/Video Input Adapter harness is open or shorted, Audio/Video Input Adapter circuit poor electrical connection. 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
- B127A Chevrolet indicates Auxiliary Video Input Signal Circuit.
- Common causes
- Common causes include Faulty Audio/Video Input Adapter, Audio/Video Input Adapter harness is open or shorted, Audio/Video Input Adapter circuit poor electrical connection.
- 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 B127A Chevrolet Description
The USB port and SD card reader slot interface with a hub device, internal to the assembly. The assembly receives fused battery voltage and ground from the harness to power the internal hub device as well as provide additional amperage to power USB devices.
The internal hub device interfaces directly with the disc player via a standard USB cable. A Mini-type USB connector is used to connect the cable to the disc player and the auxiliary input assembly. Mini-type USB male-to-female connections are used for connecting USB cables together where an in-line connection is required. An in-line cable connection is typically found between the console and the I/P harness.
The USB port allows connectivity to the rear seat entertainment system from portable media players or a USB storage device (memory stick/ flash drive). The rear seat entertainment uses the SD card reader as a mass storage device, like a USB storage device.
Once a supported device is connected to the USB port or SD card reader, the device may be sourced to one or both of the rear displays using the remote control.
What are the Possible Causes of the DTC B127A Chevrolet?
- Faulty Audio/Video Input Adapter
- Audio/Video Input Adapter harness is open or shorted
- Audio/Video Input Adapter circuit poor electrical connection
- Faulty Media Disc Player
How to Fix the DTC B127A 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B127A 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
- B127A 2014 Chevrolet Silverado — Auxiliary Video Input Signal Circuit
- B127A 2015 Chevrolet Silverado — Auxiliary Video Input Signal Circuit
- B127A 2016 Chevrolet Silverado — Auxiliary Video Input Signal Circuit
- B127A 2017 Chevrolet Silverado — Auxiliary Video Input Signal Circuit
- B127A 2018 Chevrolet Silverado — Auxiliary Video Input Signal Circuit
Frequently Asked Questions about B127A Chevrolet Code
1. What are the common symptoms of OBDII code B127A in a Chevrolet related to the Auxiliary Video Input Signal Circuit?
- Common symptoms include a blank screen on the video display, distorted or poor-quality video output, or a complete lack of video input.
2. What are some possible causes of OBDII code B127A in a Chevrolet?
- Causes may include a faulty video input module, damaged wiring or connectors in the video input circuit, or a malfunctioning video display unit.
3. How can I diagnose the issue causing OBDII code B127A in my Chevrolet?
- You can start by checking the wiring and connectors in the video input circuit for any visible damage or loose connections. Testing the video input module and display unit may also be necessary.
4. Can a DIY enthusiast repair OBDII code B127A in a Chevrolet related to the Auxiliary Video Input Signal Circuit?
- While some basic troubleshooting like checking connections can be done by DIY enthusiasts, complex repairs involving component replacement may require professional expertise.
5. Are there any specific tools or equipment needed to diagnose OBDII code B127A in a Chevrolet?
- Depending on the specific issue, diagnostic tools such as a multimeter, scan tool, and wiring diagram may be necessary to pinpoint the cause of the code.
6. Is it safe to continue driving my Chevrolet with OBDII code B127A related to the Auxiliary Video Input Signal Circuit?
- It is recommended to address the issue promptly as continued driving with a malfunctioning video input circuit can lead to further damage or safety concerns.
7. What are some tips to prevent OBDII code B127A from occurring in my Chevrolet in the future?
- Regularly inspecting and maintaining the video input system, avoiding physical damage to wiring and connectors, and using high-quality video components can help prevent this code.
8. Can weather conditions or external factors trigger OBDII code B127A in a Chevrolet?
- Extreme temperatures, moisture, or physical damage caused by external factors like accidents can potentially trigger issues leading to OBDII code B127A.
9. Are there any recalls or service bulletins related to OBDII code B127A in Chevrolet vehicles?
- It's recommended to check with a Chevrolet dealership or official sources for any recalls or service bulletins related to this specific OBDII code and address them accordingly.
10. How much does it typically cost to repair OBDII code B127A in a Chevrolet at a professional auto repair shop?
- Repair costs can vary depending on the exact cause of the issue, labor rates, and parts needed, but it's advisable to obtain quotes from multiple reputable auto repair shops for comparison.
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