Checking Switches And Wiring

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.
• Remove the Light switch module (LSM).

  Check the connection between Light switch module (LSM) terminal #A2 and Central electronic module (CEM) terminal #A34 (#34). Check for an open-circuit. Check for a short-circuit to supply voltage.

  Check the connection between Light switch module (LSM) terminal #A11 and ground. Check for an open-circuit and short-circuit to supply voltage.

  Take a reading in the connector for the light switch module (LSM) between terminals #A2 and #A11. Use an ohmmeter.

  The resistance must be infinite when the switch for opening the fuel tank filler cap is not depressed.

  The resistance must be 0 ohm when the switch for opening the fuel tank filler cover is depressed.

  If the switch for opening the fuel tank filler cover is not functioning, replace the light switch module (LSM).

  HINT: Use terminal pins to take readings in the connector. Do not damage the terminals in the connector. 

  Remedy the cables as necessary.

  Other information 

  • see CONNECTING THE BREAKOUT BOX (2008, 2009, 2010, 2011)
  • see SIGNAL DESCRIPTION CENTRAL ELECTRONIC MODULE (CEM) (2008, 2009, 2010, 2011)
  • see CONTROL MODULE RELAY BOX PASSENGER COMPARTMENT
  • see LIGHTING SWITCH
  • see CHECKING WIRING AND TERMINALS
  Fig 2: Identifying M2D Control Module (FORTV Executive. Rear Seat Entertainment, Generation 3.1/3.2, Premier TV Receiver) Connector

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

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 4: Identifying Rheostat

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Was a fault detected? 

• YES 

  Refer to VERIFICATION 

• NO 

  Refer to CHECKING WIRING FOR LOCK MOTOR