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Home >> Saab >> 1998 >> 9000 2.3 M >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Computerized Engine Controls >> Electronic Control Module (ECM) (900 Series With MOTRONIC System) >> Power Circuit
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Power Circuit

  1. Check for battery voltage at terminals No. 26 (Pink/White wire) and No. 54 (Green/Red wire). 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. On 2.3L, battery voltage should exist between ECM terminal No. 58 (Yellow/Gray wire) and ground. On 2.5L, battery voltage should exist between ECM terminal No. 57 (Yellow/Gray wire) and ground. On all models, if battery voltage does not exist, repair open circuit.
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