Section 411 (Engine Controls - Self-Diagnostics): Summary
WARNING: This page is about a different car, the 2003 Saturn Ion 3, 2003 Saturn Ion 2, and 2003 Saturn Ion 1. However, it is still accessible from the selected car via links, so may be relevant.
If no Diagnostic Trouble Codes (DTC) are present and a no-start condition exists, go to NO-START DIAGNOSIS in BASIC DIAGNOSTIC PROCEDURES - 2.2L ION article. If no DTCs are present and a driveability condition exists, go to TROUBLE SHOOTING - NO CODES - 2.2L ION article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.).