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Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Electrical >> Gauges >> Instrumentation - General Diagnostics And Tests >> Checking The Power Supply And Ground, Driver Information Module (Dim) (1999-2004) >> Checking the power supply and ground Intermittent fault >> Checking the power supply

Checking the power supply

Check interior fuse 24 (11C/24:2).

Check the wire between combined instrument power supply relay (2/29) 3 and interior fuse 24 (11C/24:2) for an open circuit as described in Open-circuit, intermittent faults , and for a short circuit to ground as described in Short-circuit to ground, intermittent faults .

Check that the relay is not defective.

Check and measure wire between combined instrument 6 and handbrake contact 1 for a short circuit to ground as described in Short-circuit to ground, intermittent faults .

Check the wire between combined instrument 1 and combined instrument power supply relay (2/29) 1 for an open circuit as described in Open-circuit, intermittent faults , and a short circuit to ground as described in Short-circuit to ground, intermittent faults .

Check the wire between combined instrument 14 and ground for an open circuit as described in Open-circuit, intermittent faults , and for a short circuit to voltage supply as described in Short-circuit to supply voltage, intermittent faults .

Do the necessary corrective action.

Additional information: 

Fig 1: Identifying Ohmmeter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Fuse Holder (Passenger Compartment)
GLL104037Courtesy of VOLVO CARS OF NORTH AMERICA.