AutoCodesGeneric – B124B:11

B124B:11 Code - USB 1 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
B124B:11 indicates USB 1 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 748
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 B124B: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 B124B:11 - USB 1 Circuit High Input - AutoCodes.com
B124B:11 Code - USB 1 Circuit High Input

What are the Possible Causes of the DTC B124B: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 B124B: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 B124B: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 B124B:11 Code

1. What are the common symptoms of OBDII code B124B:11 (USB 1 Circuit High Input)?

The common symptoms of this code may include issues with the vehicle's USB port functionality, such as difficulty connecting devices or charging smartphones.

2. What are the possible causes of OBDII code B124B:11?

Possible causes of this code could include a faulty USB port, damaged wiring in the USB circuit, or a problem with the vehicle's audio system or infotainment unit.

3. How can I diagnose the issue related to OBDII code B124B:11?

Diagnosing the issue may involve visually inspecting the USB port and associated wiring for any visible damage, testing the port with different devices, or using a diagnostic tool to check the circuitry.

4. Can I continue driving my vehicle with OBDII code B124B:11 present?

If the code is related to a malfunctioning USB port and does not affect the overall drivability of the vehicle, it may be safe to continue driving. However, it is recommended to address the issue promptly to avoid potential electrical problems.

5. What are some repair tips for fixing OBDII code B124B:11?

Repairing this code may involve replacing the faulty USB port, repairing damaged wiring, or addressing any issues with the vehicle's audio system. Consult a professional mechanic for accurate diagnosis and repair.

6. Is it possible to reset OBDII code B124B:11 without fixing the underlying issue?

While you can clear the code using an OBDII scanner, it is important to address the root cause of the problem to prevent the code from reoccurring.

7. How much does it typically cost to repair OBDII code B124B:11?

The cost of repairing this code can vary depending on the specific issue causing the fault. It is best to obtain quotes from reputable mechanics or dealerships for an accurate estimate.

8. Will OBDII code B124B:11 affect the vehicle's emissions or performance?

This code is unlikely to affect the vehicle's emissions or performance directly, as it is related to the USB circuit. However, unresolved electrical issues could potentially impact other systems over time.

9. Can a DIY enthusiast fix OBDII code B124B:11 at home?

Depending on the underlying cause of the code, some DIY enthusiasts may be able to address the issue themselves by following repair guides or tutorials. However, complex electrical problems may require professional expertise.

10. How can I prevent OBDII code B124B:11 from occurring in the future?

To prevent this code from reoccurring, avoid using damaged or incompatible devices in the USB port, ensure proper maintenance of the vehicle's electrical system, and address any issues promptly to avoid further damage.

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