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) >> Injector Circuit >> Diagnostic Procedure >> 6. Check Sub-Harness Circuit For Open And Short
April 5, 2026: LEMON Manuals is launched! Read the announcement.

6. Check Sub-Harness Circuit For Open And Short

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.
  1. Disconnect injector harness connectors.
  2. Check harness continuity between the following terminals. Refer to Wiring Diagram.
    Fig 1: Checking Sub-Harness Circuit For Open & Short
    G00761369Courtesy of NISSAN MOTOR CO., U.S.A.
    1. Continuity should exist. 

OK or NG 

OK: GO TO 7.

NG: Repair open circuit or short to ground or short to power in harness or connectors.