Checking The Component And Cable

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS CORPORATION

• Ignition off.

  Check the cable between central electronic module (CEM) connector terminal #20A and the ignition switch 50-supply connector terminal #7. Check for an open-circuit. Check for a short-circuit to ground.

  Other information: 

  • The voltage must be the same as battery voltage if the key is in position III
  • For -2004, see: CENTRAL ELECTRONIC MODULE (CEM), REPLACING .
  • For 2005-, see: CENTRAL ELECTRONIC MODULE (CEM), REPLACING .
  • To connect the breakout box to the control module, see CONNECTING THE BREAKOUT BOX
  • -2004: SIGNAL SPECIFICATION
  • 2005-: SIGNAL SPECIFICATION
  • see CHECKING WIRING AND TERMINALS .
  Fig 2: Breakout Box

  Courtesy of VOLVO CARS CORPORATION
  Fig 3: Identifying Ohm Meter

  Courtesy of VOLVO CARS CORPORATION
  Fig 4: Identifying Central Electronic Module (CEM) Connector Terminals

  Courtesy of VOLVO CARS CORPORATION

Is the voltage the same as battery voltage? 

• YES 

  Refer to VERIFICATION 

• NO 

  Refer to REPLACING THE COMPONENT