LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2003 >> Q45 >> Repair and Diagnosis >> External Pages >> Different car >> Section 201 (Engine Control System) >> Ignition Signal >> Diagnostic Procedure >> 1. Check Engine Start
April 5, 2026: LEMON Manuals is launched! Read the announcement.

1. Check Engine Start

WARNING: This page is about a different car, the 2004 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.

Turn ignition switch OFF, and restart engine.

Is engine running? 

Yes or No 

Yes (With CONSULT-II): GO TO 2.

Yes (Without CONSULT-II): GO TO 3.

No: GO TO 4.