Checking wiring and component

Check the cable between handset D7 (terminal #38) and carphone module A13 (terminal #13) for a short-circuit to supply voltage according to Short-circuit to supply voltage, intermittent faults .

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

Remedy as necessary.

Other information: 

• To access and replace the handset, see Replacing the handset
• To access or replace the carphone module, see Telephone module/-control module (PHM), changing
• 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.

Refer to Information