AutoCodes – Chevrolet – B124B Chevrolet

B124B Chevrolet Code - USB 1 Circuit

Quick Answer

The infotainment system has a USB port and an Auxiliary Audio Input Jack located in the center console. Common causes include Faulty USB Port, USB Port harness is open or shorted, USB Port 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: B124B Chevrolet indicates USB 1 Circuit.
Common causes: Common causes include Faulty USB Port, USB Port harness is open or shorted, USB Port 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.

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Code Popularity 15,529

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 19, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B124B Chevrolet Description

The infotainment system has a USB port and an Auxiliary Audio Input Jack located in the center console. The receptacle assembly receives fused battery voltage and ground from the harness to power the internal hub device as well as providing additional amperage to power USB devices.
The internal hub device interfaces directly with the human-machine interface control module via a standard USB cable. A Mini type of USB connector is used to connect the human-machine interface control module and the USB receptacle. Standard USB male-to-female connections are typically 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 infotainment system from portable media players or a USB storage device (memory stick/ flash drive). When a device is connected to the USB port, the system detects the device and switches to USB as the audio source. Once connected, the device can be controlled by the radio controls.
Not all portable media player devices or file types are compatible. Refer to the owner’s manual for information on USB devices, control, and operation.

OBDII Code B124B Chevrolet - USB 1 Circuit - AutoCodes.com — B124B Chevrolet Code - USB 1 Circuit

What does this mean?

What are the Possible Causes of the DTC B124B Chevrolet?

Faulty USB Port
USB Port harness is open or shorted
USB Port circuit poor electrical connection
Faulty Human Machine Interface Control Module (If equipped)
Faulty Radio

How to Fix the DTC B124B 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 B124B 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.

Need more information about the B124B Chevrolet code?

Need more information on how to fix the B124B Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific Chevrolet Models

B124B 2014 Chevrolet Silverado — USB 1 Circuit
B124B 2015 Chevrolet Silverado — USB 1 Circuit
B124B 2016 Chevrolet Silverado — USB 1 Circuit
B124B 2017 Chevrolet Silverado — USB 1 Circuit
B124B 2018 Chevrolet Silverado — USB 1 Circuit

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B124B Chevrolet Code

1. What are common symptoms of OBDII code B124B (Chevrolet) - USB 1 Circuit?

- Common symptoms include issues with the USB port functionality, such as the port not recognizing devices or failing to charge devices.

2. What are possible causes of OBDII code B124B related to the USB 1 Circuit on a Chevrolet vehicle?

- Possible causes may include a faulty USB port, damaged wiring or connectors, or issues with the vehicle's audio or infotainment system.

3. How can I diagnose the source of OBDII code B124B in relation to the USB 1 Circuit on my Chevrolet?

- Diagnosing the issue may involve visually inspecting the USB port and its connections, testing the port with different devices, and using a diagnostic scanner to gather more information.

4. Can a DIY enthusiast repair OBDII code B124B (Chevrolet) - USB 1 Circuit issues?

- Yes, some repairs related to this code, such as replacing a faulty USB port or repairing damaged wiring, can be tackled by DIY enthusiasts with the right tools and knowledge.

5. Is it safe to continue driving with OBDII code B124B triggered on a Chevrolet due to USB 1 Circuit problems?

- While the vehicle may still be drivable with this code, it is recommended to address the issue promptly to avoid potential issues with the vehicle's electrical system or entertainment features.

6. Are there any temporary solutions for OBDII code B124B (Chevrolet) - USB 1 Circuit problems?

- Temporary solutions may include using alternative charging methods for devices, such as a car charger plugged into the cigarette lighter, until the USB port issue is resolved.

7. How much does it typically cost to repair OBDII code B124B related to the USB 1 Circuit on a Chevrolet at a professional mechanic or dealership?

- Repair costs can vary depending on the exact cause of the issue, but they may range from around $100 to $300 for parts and labor.

8. Can OBDII code B124B (Chevrolet) - USB 1 Circuit problems affect other vehicle systems?

- While this code typically relates to USB port issues, electrical issues in the same circuit could potentially impact other systems connected to the vehicle's audio or infotainment system.

9. Will resetting the OBDII system clear the B124B code related to the USB 1 Circuit on a Chevrolet?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue with the USB 1 Circuit is not addressed, the code is likely to reappear.

10. Are there any recalls or technical service bulletins related to OBDII code B124B (Chevrolet) - USB 1 Circuit problems?

- It's recommended to check with Chevrolet or a certified dealership to inquire about any recalls or technical service bulletins related to this specific OBDII code and associated USB 1 Circuit issues.