Checking The Component And Wiring

Check the cables for the Volvo On Call switch. Check for a short-circuit to supply voltage.

Take a reading between control module connector A terminals #2 (#2) and #5 (#5).

Try replacing the switch if the cable is OK.

Remedy as necessary.

Other information: 

• see SIGNAL SPECIFICATION
• see CONNECTING THE BREAKOUT BOX
• see LOCATION OF COMPONENTS
• see PHONE MODULE (PHM) (2005-2011)
• see SWITCH VOLVO ON CALL
• 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 Phone Module (PHM) Connector

Courtesy of VOLVO CARS CORPORATION

Refer to VERIFICATION