Checking Ignition Lock Wire

Fig 1: Identifying Ignition Switch OFF Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.

  Apply the brake then release the brake to check whether the brake light works correctly. If the high level brake light is not working, the fault may be caused by overheating. Wait about 10 minutes and check whether the fault was caused by overheating.

  If the brake light works, the diagnostic trouble code may also be caused by a fault in the lighting circuit to the ignition lock. If the ignition lock light does not work correctly, check the wire between central electronic module (CEM) 19D and ignition lock light (16/65) 5 for a short circuit to ground as described in Short-circuit to ground, permanent faults .

  Do the necessary corrective action.

  Fig 2: Identifying Breakout Box

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

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

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Are there any faults with the wire? 

• YES 

  Refer to Verification 

• NO 

  Refer to Checking the brake light wire