LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Isuzu >> 1989 >> Trooper XS, 2.8 R >> Repair and Diagnosis >> Engine Performance >> System >> System/Component Tests - EFI >> Computerized Engine Controls >> Control Unit >> ECM Ignition Power Supply
April 5, 2026: LEMON Manuals is launched! Read the announcement.

ECM Ignition Power Supply

  1. Main relay is activated by ignition switch and supplies battery power to ECM.
  2. On Trooper II (2.6L 4-Cyl), main relay is powered through 10A or 15A fuse (No. 8) in fuse box (left side of dash). Main relay should always have power at 2 White/Blue wire terminals.
  3. On Trooper II (2.8L V6), main relay is powered through 15A fuse in fuse box (left side of dash). Main relay should always have power at 2 White wire terminals from fusible link.
NOTE: On (2.6L 4-Cyl) during cranking, battery power should be present at Yellow/Black wire of ECM 18-pin connector.
scientia non olet · About LEMON Manuals