AutoCodes - Generic - U18BF

U18BF Code - Secondary High Speed CAN Bus Subnet Configuration List

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|U18BF code possible causes

  • Faulty Module that is not configured
  • Module harness is open or shorted
  • Module circuit poor electrical connection

|How do I fix the U18BF code?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|Cost of diagnosing the U18BF code

Labor: 1.0

The cost of diagnosing the U18BF code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are U18BF code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|U18BF code description

The devices on the high-speed General Motor Local Area Network (GMLAN) serial data bus and the chassis high-speed GMLAN serial data bus must be programmed with software that specifically identifies the correct type and quantity of devices on the bus based on RPO configuration. If a device was not properly configured after installation, the appropriate U Code may be set for that device. No external circuit diagnosis is involved. The Diagnostic Trouble Code (DTC) will set when the device is not configured properly or the device recognizes a programming error.
OBDII Code U18bf - Secondary High Speed CAN Bus Subnet Configuration List - AutoCodes.com

|Need more information with the U18BF code?

Need more information on how to fix the U18BF code?
Get Access to Factory Service Manuals

|U18BF code information for specific makes

  • U18BF BUICK Secondary High Speed CAN Bus Subnet Configuration List
  • U18BF CADILLAC Secondary High Speed CAN Bus Subnet Configuration List
  • U18BF CHEVROLET Secondary High Speed CAN Bus Subnet Configuration List
  • U18BF GMC Secondary High Speed CAN Bus Subnet Configuration List

|Need help with a U18BF code?

Get the U18bf code diagnosed by a professional: Find a repair shop in your area

|U18BF code comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the U18bf code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧
Repair Importance Level: 3
 
1=Low 2=Medium 3=High What is this?
Repair Difficulty Level: 3
 
1=Easy 2=Moderate 3=Hard What is this?