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Home >> Volvo >> 1998 >> V90 AW30-43 >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> System Tests >> Vacuum System Check >> Notes
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Vacuum System Check: Notes

NOTE: To properly test vacuum system, it is necessary to operate vacuum motor and regulator with jumper wires from cruise control unit base. Use care when connecting wires, as an incorrect connection can harm components. Before performing vacuum system check, ensure fuse No. 19, cruise control unit and cruise control switch are okay.
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