B124C GMC Code - USB 2 Circuit
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 GMC indicates USB 2 Circuit.
- 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 GMC 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.
What are the Possible Causes of the DTC B124C GMC?
- 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 GMC?
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 GMC 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.
Need more information about the B124C GMC code?
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Information for Specific GMC Models
- B124C 2014 GMC Sierra — USB 2 Circuit
- B124C 2015 GMC Sierra — USB 2 Circuit
- B124C 2016 GMC Sierra — USB 2 Circuit
- B124C 2017 GMC Sierra — USB 2 Circuit
- B124C 2018 GMC Sierra — USB 2 Circuit
Frequently Asked Questions about B124C GMC Code
1. What are common symptoms of OBDII code B124C GMC (USB 2 Circuit)?
The common symptoms of code B124C GMC include issues with the USB port functionality, such as the inability to connect devices or charge them.
2. What are the possible causes of OBDII code B124C GMC (USB 2 Circuit)?
Possible causes of code B124C GMC include a faulty USB port, damaged wiring or connectors in the USB circuit, or a problem with the vehicle's communication network.
3. How can I diagnose OBDII code B124C GMC (USB 2 Circuit)?
Diagnosing code B124C GMC involves checking the USB port for physical damage, inspecting the wiring and connectors for any issues, and using a diagnostic tool to scan for communication errors.
4. Can I repair OBDII code B124C GMC (USB 2 Circuit) myself?
If you have experience working with automotive electronics, you may be able to repair code B124C GMC yourself by replacing the faulty USB port, repairing damaged wiring, or fixing any connection issues.
5. Is it safe to continue driving with OBDII code B124C GMC (USB 2 Circuit) present?
While code B124C GMC is not a critical issue that affects the vehicle's drivability, it is recommended to address the problem to ensure proper functionality of the USB port and prevent any further electrical issues.
6. Will resetting the OBDII code B124C GMC (USB 2 Circuit) make it go away permanently?
Resetting the code may temporarily clear the fault, but if the underlying issue causing code B124C GMC is not resolved, the code is likely to reappear during future diagnostic scans.
7. How much does it typically cost to repair OBDII code B124C GMC (USB 2 Circuit)?
The cost of repairing code B124C GMC can vary depending on the extent of the issue and whether you choose to fix it yourself or seek professional help. Costs may include parts and labor charges.
8. Are there any recalls or technical service bulletins related to OBDII code B124C GMC (USB 2 Circuit)?
It is recommended to check with your vehicle manufacturer or authorized service center for any recalls or technical service bulletins related to code B124C GMC to see if there are known issues or solutions available.
9. Can extreme weather conditions cause OBDII code B124C GMC (USB 2 Circuit) to trigger?
Extreme weather conditions, such as excessive heat or moisture, can potentially cause electrical issues that may trigger code B124C GMC. It's important to protect the vehicle's electronics from such conditions.
10. How long does it typically take to repair OBDII code B124C GMC (USB 2 Circuit)?
The repair time for code B124C GMC can vary depending on the complexity of the issue, the availability of parts, and whether you are performing the repair yourself or having it done by a professional technician.
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