AutoCodesGeneric – B124C:11

B124C:11 Code - USB 2 Circuit High Input

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
B124C:11 indicates USB 2 Circuit High Input.
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 380
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 19, 2024
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Code B124C:11 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.
The Diagnostic Trouble Code (DTC) will be set when the human machine interface control module detects an additional hub device attached to the vehicle's USB port.
OBDII Code B124C:11 - USB 2 Circuit High Input - AutoCodes.com
B124C:11 Code - USB 2 Circuit High Input

What are the Possible Causes of the DTC B124C:11?

  • 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 B124C:11?

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 B124C:11 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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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 B124C:11 Code

1. What does the OBDII code B124C:11 mean?

B124C:11 indicates a high input issue in the USB 2 circuit, typically related to the vehicle's USB port or wiring.

2. What are common symptoms of code B124C:11?

Symptoms include the USB port not functioning, inability to connect devices, or intermittent connectivity issues.

3. What causes the B124C:11 code?

Common causes include a damaged USB port, faulty wiring, loose connections, or a malfunctioning control module.

4. Can a faulty USB cable trigger the B124C:11 code?

Yes, using a damaged or incompatible USB cable can cause irregular inputs and trigger this code.

5. How can I fix code B124C:11?

Inspect the USB port for damage, check wiring and connections for faults, and replace any defective components as needed.

6. Will clearing the code fix B124C:11 permanently?

No, clearing the code without addressing the underlying issue will likely result in the code returning.

7. Is code B124C:11 related to software issues?

It can be if the vehicle's firmware or USB module software is outdated or corrupted.

8. Can a blown fuse cause the B124C:11 code?

A blown fuse related to the USB circuit might contribute to this issue, so checking fuses is recommended.

9. How much does it cost to repair code B124C:11?

Repair costs vary depending on whether the issue involves simple wiring fixes or replacement of the USB module, ranging from $50 to $300.

10. Can code B124C:11 affect other vehicle functions?

Typically, this code only impacts the USB functionality, but some infotainment systems may experience reduced performance.

Discuss the causes and fixes for B124C:11 OBDII Code

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