Reference Information

WARNING: This page is about a different car, the 2018 Cadillac XT5. However, it is still accessible from the selected car via links, so may be relevant.

Schematic Reference

OnStar/Telematics Wiring Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Master Electrical Component List

Description and Operation

OnStar Description and Operation (CV3) OnStar Description and Operation (UE1 without CV3) OnStar Description and Operation (UI3)

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