Checking power supply

Fig 1: Identifying Ignition On Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition on.

  Connect Volvo Scan Tool (ST) to the data link connector (DLC) and turn on power supply using the switch on the adapter box.

  Check the Volvo Scan Tool (ST) display.

Does the display light? 

• YES 

  Refer to Checking wiring 

• NO 

  Refer to Checking power supply to the data link connector (DLC)