Checking power ground to the data link connector (DLC)

Fig 1: Identifying Ignition Off Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.

  Connect an ohmmeter between the data link connector (DLC) terminal 4 and ground.

  Fig 2: Identifying Data Link Connector

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

  Courtesy of VOLVO CARS OF NORTH AMERICA.

The ohmmeter should read 0 Ω. 

• OK 

  Refer to Checking data link connector (DLC) signal ground 

• NOT OK 

  Refer to Checking for an open-circuit