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Section 7 (Engine Controls - Self-Diagnostics - Q45): Introduction

WARNING: This page is about a different car, the 2002 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For self-diagnostic information on I35, refer to Maxima in Nissan SELF-DIAGNOSTICS - INTRODUCTION article. For self-diagnostic information on QX4, refer to Pathfinder in Nissan SELF-DIAGNOSTICS - INTRODUCTION article.

To properly diagnose and repair this vehicle, follow TESTING PROCEDURE  under SELF-DIAGNOSTIC SYSTEM. If no Diagnostic Trouble Codes (DTC) are present and a no start condition exists, proceed to appropriate BASIC DIAGNOSTIC PROCEDURES article. If no DTCs are present and a driveability condition exists, proceed to TROUBLE SHOOTING - NO CODES article for diagnosis by symptom (i.e., ROUGH IDLE, ENGINE STALLS, etc).