Section 239 (Engine Controls Self-Diagnostics - 3.1L Engine)

WARNING: This page is about a different car, the 2003 Pontiac Grand Prix, 2003 Chevrolet Malibu, and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

Introduction
Self-Diagnostic System
Programming
Drive Cycles
Summary
Diagnostic Trouble Code Definitions
Component Locations
Connector Identification
System Tests
- Mil Inoperative
- Mil Always On
Diagnostic Tests
Wiring Diagrams