Checking the control module for short-circuits

Activate the relay driver.

Measure the resistance between terminal #2 and ground when the relay driver is active.

The resistance must be low when the relay driver is active.

Replace the control module if the resistance is high.

Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

Courtesy of VOLVO CARS OF NORTH AMERICA.

Refer to Verification