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Home >> Volvo >> 1997 >> S90 AW30-40 >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (Engine Controls - System/Component Tests) >> Computerized Engine Controls >> Electronic Control Module (ECM) >> Power Circuit Check
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Power Circuit Check

WARNING: This page is about a different car, the 1996 Volvo 960. However, it is still accessible from the selected car via links, so may be relevant.

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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