Checking the wiring and component

HINT: The hands-free loudspeaker is connected to the carphone module via a connector under the driver's seat. 

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.

  Check the cable between the carphone module connector A4 (terminal #4) and the hands-free loudspeaker connector B10. Check the cable between the carphone module connector A5 (terminal #5) and the hands-free loudspeaker connector B9. Check these cables for a short-circuit to ground according to Short-circuit to ground, intermittent faults .

  Try replacing the hands-free loudspeaker if no fault is found in the wiring.

  Remedy as necessary.

  Other information: 

  • To access or replace the hands-free unit, see Faulty signal. Permanent fault 
  • To access or replace the carphone module, see Phone module (PHM), replacing (-2004) 
  • 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: Connector B, Hands-Free Speaker Connector On The Carphone Module (PHM)

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 3: Identifying Ohm Meter

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

  Courtesy of VOLVO CARS OF NORTH AMERICA.

• Continue 

  If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

  It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).