Checking the 30-supply

Check that the function switch opens and closes between #2 (ground) and #3, #4 respectively #5 in the correct way.

Replace the function switch if necessary.

Check the signal cables between the function switch and the combined instrument panel for an open-circuit according to Open-circuit, permanent faults , a short-circuit to supply voltage according to Short-circuit to ground, permanent faults , and a short-circuit to ground according to Short-circuit to supply voltage. Permanent faults .

Check that all six trip computer functions can be selected using the function switch.

HINT: The voltage between signal cables and ground should be 5 V with the function switch disconnected.

Other information:

For information about signals, see Connector D, #D1-#D5 .
To connect the breakout box, see Connecting breakout box, Combined instrument panel .

Fig 1: Identifying Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Voltmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Dashboard Cover Panel And Connectors

Courtesy of VOLVO CARS OF NORTH AMERICA.

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