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Home >> Subaru >> 2002 >> Forester L, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Computerized Engine Controls >> Electronic Control Module (ECM) >> Power Circuits (Cranking)
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Power Circuits (Cranking)

  1. Using voltmeter, backprobe ECM connector crank signal terminal. See ENGINE PERFORMANCE in appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL. Hold ignition switch in START position. Battery voltage should exist between ECM terminal and ground only when ignition switch is in START position.
  2. If battery voltage does not exist, check fusible link. Fusible links are in engine compartment. If fusible link is okay, check for open wire between fusible link and ECM terminal or for defective ignition switch.
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