Checking the components

Activate windscreen-wiper switch and read status.

HINT: If read-out of status on windscreen-wiper switch gave a correct result the fault is not in the SWM. 

Fig 1: Identifying VCT2000 Diagnostic Tool

Courtesy of VOLVO CARS OF NORTH AMERICA.

Did read-out of status on windscreen-wiper switch give a correct result? 

• YES 

  FAULT NOT FOUND:  Troubleshooting has been completed.

• NO 

  Refer to Replacing the windscreen-wiper switch .

Activate windscreen-wiper switch and read status.

HINT: If read-out of status on windscreen-wiper switch gave a correct result the fault was in the windscreen-wiper switch. 

Fig 1: Identifying VCT2000 Diagnostic Tool

Courtesy of VOLVO CARS OF NORTH AMERICA.

Did read-out of status on windscreen-wiper switch give a correct result? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to Replacing the control unit .