Checking The Component And Wiring

Check the cable for the cradle signal. Check for an open-circuit.

Take a reading between control module connector A terminal #8 (#8) and handset connector terminal #4 (#24).

Check control module connector A for the cradle signal. Check for a short-circuit to supply voltage.

Check between:

• terminals #8 (#8) and #7 (#7)
• terminals #8 (8) and #5 (#5).

Try replacing the handset or holder if the cable is OK.

Remedy as necessary.

Other information: 

• The cradle signal is approximately 5 V when the handset is not in the cradle
• The cradle signal is approximately 0 V when the handset is in the cradle
• see SIGNAL SPECIFICATION
• see CONNECTING THE BREAKOUT BOX
• see LOCATION OF COMPONENTS
• see PHONE MODULE (PHM) (2005-2011)
• see TELEPHONE HANDSET (2005-2011)
• see CONTENTS

Fig 2: Identifying Connector A Terminals

Courtesy of VOLVO CARS CORPORATION

Fig 3: Identifying Ohms Display

Courtesy of VOLVO CARS CORPORATION

Fig 4: Identifying Handset Cradle

Courtesy of VOLVO CARS CORPORATION

Refer to VERIFICATION