B124C 2016 GMC Sierra Code - USB 2 Circuit
Quick Answer
The B124C diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the USB 2 circuit. Common causes include Damaged wiring leading to the USB 2 port, Faulty USB port hardware, Malfunctioning control module responsible for the USB 2 circuit. 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 2016 GMC Sierra indicates USB 2 Circuit.
- Common causes
- Common causes include Damaged wiring leading to the USB 2 port, Faulty USB port hardware, Malfunctioning control module responsible for the USB 2 circuit.
- 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.
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Code B124C 2016 GMC Sierra Description
The B124C diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the USB 2 circuit. This code indicates a problem with the USB 2 port in the vehicle, which is commonly used for connecting devices such as smartphones, tablets, or USB drives to the vehicle's infotainment system. When this code is triggered, it means that there is a malfunction in the circuit that controls the USB 2 port, leading to potential issues with data transfer, charging, or device recognition.
Common Causes of B124C 2016 GMC Sierra
- Damaged wiring leading to the USB 2 port
- Faulty USB port hardware
- Malfunctioning control module responsible for the USB 2 circuit
- Software glitch in the vehicle's infotainment system
- Water damage or corrosion affecting the USB 2 port
Symptoms of B124C 2016 GMC Sierra
- Inability to charge devices through the USB 2 port
- Device not recognized when connected to the USB 2 port
- Issues with playing music or accessing media files from a connected device
- Intermittent connectivity problems with the USB 2 port
How to Fix B124C 2016 GMC Sierra
- Begin by conducting a visual inspection of the USB 2 port and surrounding wiring to check for any visible damage or corrosion.
- Use a multimeter to test the continuity of the wiring and ensure that there are no breaks or shorts in the circuit.
- Test the USB port itself to determine if it is functioning properly or if it needs to be replaced.
- Check the control module responsible for the USB 2 circuit to see if it is sending and receiving signals correctly.
- If necessary, reprogram the vehicle's infotainment system to address any software glitches that may be causing the issue.
Cost to Fix B124C 2016 GMC Sierra
The typical repair costs for addressing a B124C code related to the USB 2 circuit in a 2016 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of parts such as a new USB port or control module can range from $50 to $200, while labor costs for diagnosis and repair can add an additional $100 to $300. Overall, drivers can expect to pay anywhere from $150 to $500 for resolving this issue, but it's important to note that actual costs may vary based on factors such as location, vehicle make and model, and the rates of the auto repair shop. It's recommended to obtain a detailed estimate from a qualified mechanic before proceeding with the repair.
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Frequently Asked Questions about B124C 2016 GMC Sierra Code
1. What does the OBDII code B124C mean on a 2016 GMC Sierra?
The code B124C indicates an issue with the USB 2 circuit, which typically involves a malfunction in the wiring, connection, or component related to the second USB port.
2. What are the common symptoms of code B124C in a 2016 GMC Sierra?
Common symptoms include the second USB port not working, failure to charge devices, or inability to connect to the infotainment system.
3. What causes the B124C code to appear on a 2016 GMC Sierra?
The code can be caused by faulty wiring, a damaged USB port, a blown fuse, or a malfunctioning infotainment module.
4. How do I diagnose the B124C code on a 2016 GMC Sierra?
Start by inspecting the USB 2 port for physical damage, check the associated wiring and connections, and test the fuse or circuit related to the USB system.
5. Can I still use the other USB ports if code B124C is active?
Yes, other USB ports may still function normally since the code specifically relates to the USB 2 circuit.
6. How do I fix the B124C code on my 2016 GMC Sierra?
Repairs may involve replacing a damaged USB port, repairing or replacing faulty wiring, or resetting or updating the vehicle’s infotainment system.
7. Is the B124C code a serious issue on a 2016 GMC Sierra?
No, it is not a critical issue, but it can affect the functionality of the USB 2 port, which may inconvenience users relying on it for charging or data transfer.
8. Can a blown fuse cause the B124C code on a 2016 GMC Sierra?
Yes, a blown fuse in the USB circuit can trigger this code and prevent the USB 2 port from functioning.
9. Will clearing the code B124C fix the issue permanently?
Clearing the code may temporarily remove it, but the underlying cause must be fixed to prevent it from returning.
10. How much does it cost to repair the B124C code on a 2016 GMC Sierra?
Repair costs vary depending on the issue, but replacing a USB port typically costs $50–$150, and wiring repairs or module replacements may cost more.
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