Reference Information
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Schematic Reference
Engine Controls Schematics (Except LZ1)
Connector End View Reference
COMPONENT CONNECTOR END VIEWS - INDEX
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
- GE 41415-50 Fuel Tank Cap Adapter
- GE 41413-SPT High Intensity White Light
- GE 41413-A Evaporative Emissions System Tester (EEST)
- J 41413-300 EVAP Cap and Plug Kit
- J 41413-311 EVAP Plug
- GE 41413-VLV EVAP Service Port Vent Fitting
For equivalent regional tools, refer to Special Tools