U007B 2017 Chevrolet Silverado Code - Control Module Communication High Speed Extension CAN Bus 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
- U007B 2017 Chevrolet Silverado indicates Control Module Communication High Speed Extension CAN Bus 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 U007B 2017 Chevrolet Silverado Description
What are the Possible Causes of the DTC U007B 2017 Chevrolet Silverado?
- 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 U007B 2017 Chevrolet Silverado?
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 U007B 2017 Chevrolet Silverado 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 U007B 2017 Chevrolet Silverado code?
Need more information on how to fix the U007B 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U007B 2017 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about U007B 2017 Chevrolet Silverado Code
1. What does OBDII code U007B mean on a 2017 Chevrolet Silverado?
U007B indicates a communication issue on the High-Speed CAN (Controller Area Network) bus, specifically that the bus is "off" or not functioning properly.
2. What are common symptoms of the U007B code in a 2017 Chevrolet Silverado?
Symptoms may include warning lights on the dashboard, such as the check engine light, loss of communication with certain modules, or malfunctioning systems like ABS or traction control.
3. What causes the U007B code to appear in a 2017 Chevrolet Silverado?
Common causes include a faulty control module, damaged or corroded wiring, loose connectors, or issues with the CAN bus network itself.
4. Can a weak battery cause the U007B code in my Silverado?
Yes, a weak or failing battery can lead to communication errors on the CAN bus, potentially triggering the U007B code.
5. How do I diagnose the U007B code on a 2017 Chevrolet Silverado?
Start by checking the battery voltage and inspecting the CAN bus wiring and connectors for damage or corrosion. A scan tool can help identify which module is not communicating.
6. Is the U007B code serious, and can I still drive my Silverado?
While the truck may still be drivable, the code indicates communication issues that could affect critical systems, so it’s best to address the problem promptly.
7. What should I inspect first for the U007B code on a 2017 Silverado?
Begin by inspecting the CAN bus wiring, connectors, and battery condition. Check for any loose connections or visible damage.
8. Can a faulty control module trigger the U007B code in my Silverado?
Yes, a malfunctioning control module can disrupt communication on the CAN bus and cause the U007B code.
9. How much does it cost to repair the U007B code on a 2017 Chevrolet Silverado?
Repair costs vary depending on the cause. Simple fixes like repairing wiring or connectors may cost under $100, while replacing a control module could cost several hundred dollars.
10. Can clearing the U007B code with a scan tool fix the problem?
Clearing the code may temporarily remove it, but if the underlying issue is not resolved, the code will likely return.
Discuss the causes and fixes for U007B 2017 Chevrolet Silverado OBDII Code
Code U007B 2017 Chevrolet Silverado 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.
