Reference Information
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban, and 2018 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.
Schematic Reference
Engine Controls Wiring Schematics
Connector End View Reference
COMPONENT CONNECTOR END VIEWS - INDEX
Powertrain Component View
Description and Operation
Evaporative Emission Control System Description
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
Special Tools
- CH 48096 EVAP Service Access Port Tool
- EN 41413-VLV EVAP Service Port Vent Fitting
- GE 41413-SPT High Intensity White Light
- GE 41413-A Evaporative Emissions System Tester (EEST)
- GE 41413-300 EVAP Cap and Plug Kit
For equivalent regional tools, refer to Special Tools (Service Tools)Special Tools (Diagnostic Tools)