B124B:0B Code - USB 1 Circuit High Current
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:0B indicates USB 1 Circuit High Current.
- 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.
Code B124B:0B Description
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 excessive current condition on the USB 5 V circuit.
What are the Possible Causes of the DTC B124B:0B?
- 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:0B?
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:0B 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 B124B:0B Code
1. What does the OBDII code B124B:0B mean?
The code B124B:0B indicates a high current condition in the USB 1 circuit, suggesting an electrical issue such as an overload or short in the USB port or its wiring.
2. What are the common symptoms of code B124B:0B?
Symptoms may include a non-functional USB port, intermittent connectivity, overheating of the USB port, or a blown fuse.
3. What causes the B124B:0B code to appear?
This code can be caused by a damaged USB device, a short circuit in the USB wiring, a faulty USB port, or excessive current draw from a connected device.
4. Can I still use my USB port if code B124B:0B is active?
It is not recommended to use the affected USB port until the issue is resolved, as it could cause further damage to the vehicle's electrical system.
5. How is the B124B:0B code diagnosed?
Diagnosis involves inspecting the USB port, testing the USB wiring for continuity or shorts, and checking for any damaged or incompatible devices connected to the port.
6. Can a faulty USB device trigger the B124B:0B code?
Yes, a defective or incompatible USB device drawing excessive current can cause this code to appear.
7. How do I fix the B124B:0B code?
Repair involves removing any problematic USB devices, replacing damaged USB ports or wiring, and resetting the code using an OBDII scanner.
8. Is it safe to drive with the B124B:0B code?
While it may not affect drivability, ignoring the code could lead to further electrical issues in the vehicle.
9. Can a blown fuse cause the B124B:0B code?
Yes, if the USB circuit fuse is blown due to excessive current, it can trigger this code.
10. Will resetting the code fix the B124B:0B issue?
Resetting the code may temporarily clear it, but the underlying issue must be addressed to prevent the code from returning.
Discuss the causes and fixes for B124B:0B OBDII Code
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