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Home >> Saab >> 1997 >> 900 S, 2D Convertible, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Computerized Engine Controls >> Electronic Control Module (ECM - TRIONIC System) >> Power Circuit

Power Circuit

  1. Check for battery voltage at terminals No. 1 and No. 48 (Pink/White wires). If battery voltage exists, go to next step. If battery voltage does not exist, repair open in Pink/White wire between ECM and fuse panel.
  2. Turn ignition on. Battery voltage should exist between ECM terminal No. 60 (Yellow/Gray wire) and ground. If battery voltage does not exist, repair open circuit in Yellow/Gray wire.