Checking Data Link Connector (DLC) Signal Ground

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off.
Connect an ohmmeter between the data link connector (DLC) terminal 5 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 Power Supply To the Adapter Box
NOT OK
Refer to Checking For An Open-Circuit