Reference Information

WARNING: This page is about a different car, the 2020 Buick Regal and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

Schematic Reference

Engine Controls Wiring Schematics (LGX)

Connector End View Reference

Master Electrical Component List , or Component Connector End Views - Index

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

Special Tools

GE-41413-A / B Evaporative Emissions System Tester (EEST)
GE-41415-60 Engine Induction System Leak Test Adapter/Capless Fuel Fill Adapter

Equivalent regional tools: Special Tools (Mechanical Tools) , or Special Tools (Diagnostic Tools)