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Home >> Volvo >> 1993 >> 850 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Computerized Engine Controls >> Electronic Control Unit - Fuel Injection >> Power Circuit Check

Power Circuit Check

Ensure ignition is off. Connect voltmeter between measuring unit terminals No. 20 and 10. Battery voltage should be present. Connect voltmeter between terminals No. 20 and 30. Turn ignition on. Battery voltage should be present. If voltage is not as specified, check wiring, fuse No. 1, and electrical connections. Turn ignition off.

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