Checking the ignition switch

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Key out
• Disconnect the connector for the ignition switch.

  Check the voltage in the central electronic module (CEM) connector, terminal #B1 (#A21).

  Other information 

  • To access the ignition switch, see Steering wheel lock, replacing
  Fig 2: Identifying Voltage Display

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  Fig 3: Identifying Ignition Switch Terminals

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Does the voltage drop to approximately 0 V? 

• YES 

  Refer to Replacing the ignition switch 

• NO 

  Refer to Checking the wiring