B124C:0B Code - USB 2 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
- B124C:0B indicates USB 2 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 B124C: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 B124C: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 B124C: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 B124C: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 B124C:0B Code
1. What does OBDII code B124C:0B mean?
Code B124C:0B indicates "USB 2 Circuit High Current," meaning the vehicle has detected an electrical issue where the USB 2 circuit is drawing more current than expected.
2. What are the common symptoms of code B124C:0B?
Symptoms may include a non-functional USB port, inability to charge devices, connectivity issues with media devices, or a blown fuse for the USB circuit.
3. What causes the B124C:0B code to appear?
Common causes include a short circuit in the USB wiring, a damaged USB port, a faulty device connected to the port, or a defective USB control module.
4. Can a faulty USB device trigger code B124C:0B?
Yes, a device drawing excessive current or with internal faults can cause the USB circuit to overload, triggering this code.
5. How do I diagnose the problem for code B124C:0B?
Inspect the USB port and wiring for visible damage, test the circuit for shorts, and try connecting a different, known-good device to identify if the issue is with the USB port or the connected device.
6. Can I still drive with code B124C:0B active?
Yes, this code typically does not affect drivability, but USB functionality may be impaired, and prolonged issues could damage the circuit.
7. How is the B124C:0B code typically fixed?
Repairs may involve replacing a damaged USB port, repairing or replacing faulty wiring, or replacing a blown fuse or the USB control module.
8. How much does it cost to fix code B124C:0B?
Repair costs vary depending on the issue, but replacing a USB port or fuse is relatively inexpensive, while a USB control module replacement may cost more.
9. Can I clear code B124C:0B without repairs?
Clearing the code without addressing the underlying issue will likely result in the code returning. Repairs are necessary to resolve the issue permanently.
10. What tools are needed to fix code B124C:0B?
Common tools include a multimeter for testing the circuit, replacement fuses, and possibly an OBDII scanner to clear the code after repairs.
Discuss the causes and fixes for B124C:0B OBDII Code
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