Power Circuit Check
WARNING: This page is about a different car, the 1994 Volvo 960, 1994 Volvo 940, and 1994 Volvo 850. However, it is still accessible from the selected car via links, so may be relevant.
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.