Checking for permanent or intermittent faults

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition on
• Operate the sun roof to full tilt.

  Check that the automatic operation of the sun roof works.

Was the function OK? 

• YES 

  Refer to Verification 

• NO 

  Refer to Checking the wiring