Reference Information

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2013 GMC Yukon XL, 2013 GMC Yukon, 2013 Chevrolet Suburban, 2013 Chevrolet Avalanche, and 2013 Cadillac Escalade EXT. However, it is still accessible from the selected car via links, so may be relevant.

Schematic Reference

Engine Controls Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX
Electrical Center Identification Views

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-48027 Digital Pressure Gauge
J-35616 GM-Approved Terminal Test Kit
J-35616-A/BT-8637 Connector Test Adapter Kit
J-43244 Relay Puller Pliers