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Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> AEM, CEM & Rem Diagnostic Trouble Codes - 2 Of 12 >> CEM-1A58: Communication With The Phone Module (PHM). Signal Missing (2005-2006) >> Signal missing >> Checking the ground terminal >> Checking for open-circuits, contact resistance and oxidation

Checking for open-circuits, contact resistance and oxidation

Check ground terminal 31/84 and the wiring connected to it. Check for an open-circuit according to Open-circuit, permanent faults . Check for contact resistance and oxidation according to Contact resistance and oxidation .

Fig 1: Identifying Ohm Meter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.