Checking the component and cable

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

• 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
  • To access or replace the central electronic module (CEM) connector, see Central electronic module (CEM), replacing
  • For the intermediate connector see appropriate wiring diagram.
  • To connect the breakout box to the control module, see Connecting the breakout box
  • For further information about signals and other values, see Signal specification
  • See Checking wiring and terminals .
  Fig 2: Identifying Breakout Box

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  Fig 3: Identifying Ohmmeter

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  Fig 4: Identifying Central Electronic Module (CEM) Connector Terminals

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Is the voltage the same as battery voltage? 

• YES 

  Refer to Verification 

• NO 

  Refer to Replacing ignition switch connector