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Home >> Volvo >> 1998 >> V70 GLT >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Computerized Engine Controls >> Electronic Control Module (ECM) >> Power Circuit Check

Power Circuit Check

Ensure ignition is off. Install breakout box and adapter. See Figure. Connect adapter connector "A" to breakout box. Measure voltage between breakout box terminal No. 13 (ground) and terminals No. 12, 26 and 27. Battery voltage should be present at all terminals. If voltage is not as specified, check No. 1 fuse, wiring and main relay. Repair as necessary.

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