U007C 2018 Chevrolet Silverado Code - Control Module Communication High Speed Extension CAN Bus 2 Off
Quick Answer
The U007C diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado indicates a problem with the Control Module Communication High Speed Extension CAN Bus 2. Common causes include Faulty control module, Wiring or connection issues in the CAN Bus network, Water or corrosion damage to connectors. 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
- U007C 2018 Chevrolet Silverado indicates Control Module Communication High Speed Extension CAN Bus 2 Off.
- Common causes
- Common causes include Faulty control module, Wiring or connection issues in the CAN Bus network, Water or corrosion damage to connectors.
- 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 U007C 2018 Chevrolet Silverado Description
The U007C diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado indicates a problem with the Control Module Communication High Speed Extension CAN Bus 2. This code signifies that there is a communication issue between the control modules in the vehicle, specifically on the high-speed CAN Bus 2 network. The CAN (Controller Area Network) Bus is a communication system used in modern vehicles to allow various control modules to communicate with each other. When this communication is disrupted or lost, it can lead to various issues with the vehicle's systems.
Common Causes of U007C 2018 Chevrolet Silverado
- Faulty control module
- Wiring or connection issues in the CAN Bus network
- Water or corrosion damage to connectors
- Software or firmware issues in control modules
- Electrical interference or noise in the communication network
Symptoms of U007C 2018 Chevrolet Silverado
- Check Engine Light illuminated
- Loss of communication with various control modules
- Erratic behavior of vehicle systems
- Transmission shifting issues
- ABS or traction control system malfunctions
How to Fix U007C 2018 Chevrolet Silverado
- Perform a thorough inspection of the CAN Bus network and connectors for any visible damage or corrosion.
- Check for loose or disconnected wiring in the affected area.
- Use a diagnostic scan tool to identify the specific control module causing the communication issue.
- Update control module software or firmware if necessary.
- Replace faulty control modules or repair wiring/connectors as needed.
Cost to Fix U007C 2018 Chevrolet Silverado
The typical repair costs for addressing the U007C code on a 2018 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, the cost of parts for replacing a control module or repairing wiring/connectors can range from $200 to $800. Labor costs at auto repair shops typically range from $80 to $150 per hour, and the total repair time can vary based on the complexity of the issue. Therefore, the total repair cost could range from $300 to $1500 or more. It is advisable to consult with a qualified mechanic or dealership to get an accurate estimate based on the specific diagnosis and repair needed for your vehicle.
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Frequently Asked Questions about U007C 2018 Chevrolet Silverado Code
1. What does the OBDII code U007C mean on a 2018 Chevrolet Silverado?
U007C indicates a communication issue on the High-Speed CAN Bus 2, specifically when a control module has lost communication or detected the bus is off.
2. What are the common symptoms of code U007C on a 2018 Chevrolet Silverado?
Symptoms may include dashboard warning lights (like the check engine light), erratic operation of electronic systems, failure of certain modules to respond, or complete vehicle stalling.
3. What causes the U007C code on a 2018 Chevrolet Silverado?
Possible causes include damaged wiring or connectors in the CAN Bus circuit, a faulty control module, a blown fuse, or an issue with the power or ground supply to the modules.
4. Can I still drive my 2018 Chevrolet Silverado with a U007C code?
It may be risky to drive as the code can affect critical systems like transmission and braking. It’s best to address the issue promptly to avoid further damage or unsafe driving conditions.
5. How can I diagnose the U007C code on my Silverado?
Start by inspecting the CAN Bus wiring and connectors for damage or corrosion. Use a scan tool capable of reading live data to check communication between modules and test for power and ground at the affected module.
6. Which modules are typically involved with the U007C code?
Modules connected to the High-Speed CAN Bus 2, such as the Engine Control Module (ECM), Transmission Control Module (TCM), or Body Control Module (BCM), could be involved.
7. What repairs fix the U007C code on a 2018 Chevrolet Silverado?
Repairs may include repairing or replacing damaged wiring or connectors, replacing a faulty control module, checking and replacing blown fuses, or reprogramming a module if necessary.
8. How much does it cost to fix the U007C code on a 2018 Chevrolet Silverado?
Repair costs can vary widely depending on the root cause. Simple wiring repairs may cost $100-$300, while module replacement or reprogramming could cost $500 or more.
9. Can a weak battery cause the U007C code?
Yes, a weak or failing battery can cause low voltage, disrupting communication on the CAN Bus and triggering the U007C code.
10. Will clearing the U007C code fix the issue?
Clearing the code without addressing the root cause will only temporarily remove it. The issue must be properly diagnosed and repaired for the code to stay cleared.
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