Reference Information
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. 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
Master Electrical Component List , or COMPONENT CONNECTOR END VIEWS - INDEX
Component View Reference
Description and Operation
Exhaust Aftertreatment System Description
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References for scan tool information
Special Tools
- J-45873 Fuel Return Volume Test Kit
- CH-49736 Hydrocarbon Injector Quick Connect Release Tool