Checking the wiring and component

Fig 1: Identifying Ignition Switch OFF Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.

  Check the cable between carphone control module A12 (terminal #12) and handset loudspeaker signal D4 (terminal #35) for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

  Try replacing the carphone handset if no fault is found in the wiring.

  Remedy as necessary.

  Other information: 

  • To access or replace the carphone module, see Phone module (PHM), replacing
  • To access and replace the handset, see Handset, replacing
  • To connect the breakout box, see Connecting the breakout box. Carphone module
  • For information about signals and connectors, see Signal description. Phone module (PHM) .
  Fig 2: Identifying Handset Connector (D) Terminals

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 3: Identifying Voltage Display

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 4: Identifying Connector (F) Terminals

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Continue when the fault has been remedied. 

• Continue 

  Refer to Verification