U007C Code - Control Module Communication High Speed Extension CAN Bus 2 Off
Quick Answer
The devices connected to the object high-speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Check for more codes, Faulty Control Module, Control Module harness is open or shorted. 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 indicates Control Module Communication High Speed Extension CAN Bus 2 Off.
- Common causes
- Common causes include Check for more codes, Faulty Control Module, Control Module harness is open or shorted.
- 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.
Code U007C Description
What are the Possible Causes of the DTC U007C?
- Check for more codes
- Faulty Control Module
- Control Module harness is open or shorted
- Control Module circuit poor electrical connection
How to Fix the DTC U007C?
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 U007C 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 U007C code?
Need more information on how to fix the U007C code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U007C code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- U007C Buick — Control Module Communication High Speed Extension CAN Bus 2 Off
- U007C Cadillac — Control Module Communication High Speed Extension CAN Bus 2 Off
- U007C Chevrolet — Control Module Communication High Speed Extension CAN Bus 2 Off
- U007C GMC — Control Module Communication High Speed Extension CAN Bus 2 Off
Frequently Asked Questions about U007C Code
1. What are common symptoms of OBDII code U007C?
- Common symptoms include the malfunction indicator light (MIL) illuminating on the dashboard, issues with vehicle communication systems, and potential difficulty shifting gears.
2. What causes OBDII code U007C to trigger?
- This code is typically triggered when there is a communication failure between control modules on the high-speed CAN bus 2 network, indicating a potential issue with the network wiring, connectors, or modules themselves.
3. How can I diagnose the cause of OBDII code U007C?
- Diagnosis involves checking the wiring and connectors related to the high-speed CAN bus 2 network, inspecting the control modules for faults, and using a diagnostic scanner to analyze communication signals.
4. What are the possible repair options for OBDII code U007C?
- Repair options may include repairing or replacing damaged wiring and connectors, reprogramming or replacing control modules, and ensuring proper communication network functionality.
5. Can I drive my vehicle with OBDII code U007C present?
- It is not recommended to drive the vehicle with this code present, as it can affect critical communication between control modules and potentially lead to further issues with vehicle operation.
6. How serious is OBDII code U007C?
- While the severity of this code may vary depending on the underlying cause, it is considered a serious issue that can impact the overall functionality and safety of the vehicle.
7. Is OBDII code U007C easy to fix on my own?
- Fixing this code may require advanced diagnostic tools and knowledge of vehicle communication systems, so it is recommended to consult a professional mechanic for proper diagnosis and repair.
8. Can a faulty sensor cause OBDII code U007C to appear?
- While a faulty sensor may not directly cause this code, it can contribute to communication issues between control modules, potentially leading to the triggering of code U007C.
9. Does weather or environmental conditions affect OBDII code U007C?
- Extreme weather conditions or environmental factors can potentially impact the high-speed CAN bus 2 network, leading to communication failures and the triggering of code U007C.
10. How much does it typically cost to repair OBDII code U007C?
- Repair costs for this code can vary depending on the specific cause and required repairs, but it is advisable to budget for diagnostic fees, parts replacement, and labor costs.
1. What are the common symptoms of OBDII code U007C?
- Common symptoms include issues with the vehicle's communication system, such as difficulty starting the vehicle, loss of power, or warning lights on the dashboard.
2. What can cause the OBDII code U007C to appear?
- The code U007C is typically triggered by a malfunction in the high-speed communication network between control modules, often due to wiring issues, faulty modules, or a damaged CAN bus.
3. How can I diagnose the OBDII code U007C?
- Diagnosing code U007C involves using a diagnostic scanner to read the trouble codes, checking for any related codes or communication errors, inspecting the wiring harness for damage, and testing the control modules for proper function.
4. What are some possible repair tips for resolving code U007C?
- Repair tips may include repairing or replacing damaged wiring, ensuring proper connections between control modules, updating software or firmware in affected modules, and resetting the codes after the repairs are completed.
5. Can code U007C be fixed by resetting the vehicle's computer?
- While resetting the vehicle's computer may temporarily clear the code U007C, it is important to address the underlying issue causing the communication error to prevent the code from reappearing.
6. Is it safe to drive with the OBDII code U007C present?
- It is not recommended to drive with the code U007C present, as it can indicate potential issues with the vehicle's communication system that may affect its performance or safety.
7. How much does it typically cost to repair OBDII code U007C?
- The cost of repairing code U007C can vary depending on the underlying cause of the issue, but it may involve diagnostic fees, labor costs for repairs, and potential replacement of control modules or wiring components.
8. Can a DIY enthusiast fix OBDII code U007C at home?
- DIY enthusiasts with experience in automotive diagnostics and electrical systems may be able to diagnose and repair code U007C at home, but it is recommended to have the necessary tools and knowledge to avoid causing further damage.
9. Are there any recalls or technical service bulletins related to OBDII code U007C?
- It is advisable to check with the vehicle manufacturer or a trusted automotive service provider to inquire about any recalls or technical service bulletins related to OBDII code U007C for specific vehicle models.
10. How can I prevent OBDII code U007C from recurring in the future?
- To prevent code U007C from recurring, it is important to address any underlying issues promptly, perform regular maintenance checks on the vehicle's communication system, and follow manufacturer recommendations for software updates and inspections.
Discuss the causes and fixes for U007C OBDII Code
Code U007C comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
