LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 1995 >> Q45 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing 4.5L >> Ignition Checks >> DISTRIBUTORLESS Ignition System Checks >> Output Signal Circuit
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Output Signal Circuit

  1. Turn ignition off. Disconnect ECM and ignition coil relay harness connectors. Check continuity between ECM terminal No. 16 (harness side) and ignition coil relay connector terminal No. 1 (Gray/Red wire). See WIRING DIAGRAMS  section.
  2. If continuity is present, go to next step. If continuity is not present, check harness and connectors between ECM and ignition coil relay. Repair as necessary and repeat step 1).
  3. Check harness continuity between ECM and ignition coil in each cylinder. See Fig 1 . Continuity should be present. If continuity is not present, repair or replace harness or connectors.
Fig 1: Checking Output Signal Circuit (Q45)
G94J44130Courtesy of NISSAN MOTOR CO., U.S.A.
scientia non olet · About LEMON Manuals