LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2002 >> Forester Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 22 (Engine Controls - System & Component Testing) >> Computerized Engine Controls >> Electronic Control Module (ECM) >> Power Circuits (Ignition On)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Power Circuits (Ignition On)

WARNING: This page is about a different car, the 2003 Subaru Outback, 2003 Subaru Legacy, 2003 Subaru Impreza, 2003 Subaru Forester, and 2003 Subaru Baja. However, it is still accessible from the selected car via links, so may be relevant.

Turn ignition on. Check for battery voltage between ECM power terminals and ground. For ECM power terminal identification, see appropriate pin voltage chart in PIN VOLTAGE CHARTS article. If battery voltage does not exist, check fuse. If fuse is okay, check for an open in wire or a defective ignition switch. See ENGINE PERFORMANCE in appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL.