Checking For A Short-Circuit In the Wiring

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.

Fig 2: Identifying Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off.
Wiring 1/6 meters disconnected.
To find a short-circuit, all terminals/wires in the cable must be checked for a short-circuit to each other. Take readings in the 16-pin connector.

Connect an ohmmeter between the 16-pin connector terminal pins:
- #1 and the other terminals
- #2 and the other terminals
Take readings for the other terminals in the same way.

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

Fig 4: Connecting Ohmmeter Between Connectors
Courtesy of VOLVO CARS OF NORTH AMERICA.

The ohmmeter should read infinite resistance for all readings.

OK
Refer to Checking Communication With Other Diagnostic Systems
NOT OK
Refer to Replacing Component