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Engine-Codes – Generic – B124C:0B

B124C:0B Code - USB 2 Circuit High Current

Quick Answer

The B124C:0B diagnostic trouble code indicates a problem with the USB 2 circuit in the vehicle, specifically indicating high current. Common causes include Short circuit in the USB 2 circuit, Overloaded USB ports, Faulty USB 2 module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B124C:0B indicates USB 2 Circuit High Current.
Common causes
Common causes include Short circuit in the USB 2 circuit, Overloaded USB ports, Faulty USB 2 module.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code B124C:0B Description

The B124C:0B diagnostic trouble code indicates a problem with the USB 2 circuit in the vehicle, specifically indicating high current. This could mean that there is an electrical issue within the USB 2 circuit that is causing an abnormal amount of current to flow through it. The USB 2 circuit is responsible for providing power and data transfer capabilities to USB devices connected to the vehicle, such as smartphones, tablets, or other electronic devices.

OBDII Code B124C:0B - USB 2 Circuit High Current
B124C:0B Code - USB 2 Circuit High Current

Common Causes of B124C:0B

  1. Short circuit in the USB 2 circuit
  2. Overloaded USB ports
  3. Faulty USB 2 module
  4. Wiring issues in the USB 2 circuit
  5. Faulty USB devices connected to the system

Symptoms of B124C:0B

  1. USB devices not charging properly
  2. USB devices not recognized by the vehicle
  3. Error messages related to the USB system
  4. Vehicle's entertainment system not functioning correctly
  5. Electrical burning smell in the vehicle

How to Fix B124C:0B

  1. Inspect the USB 2 circuit for any visible signs of damage or short circuits.
  2. Check the USB ports for any debris or corrosion that could be causing high current flow.
  3. Test the USB 2 module for functionality and replace if necessary.
  4. Inspect the wiring in the USB 2 circuit for any frays or breaks and repair as needed.
  5. Test the USB devices connected to the system to determine if any are causing the high current issue.

Cost to Fix B124C:0B

The cost of repairing a USB 2 circuit high current issue can vary depending on the specific cause of the problem and the extent of the damage. On average, you can expect to pay between $100 to $300 for parts and labor. However, it is important to note that diagnostic time and labor rates can vary, so it is recommended to contact local auto repair shops for more accurate pricing.

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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: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.

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