Communication fault

Communication has been interrupted for one of the following reasons:

• The ignition is switched off
• VCT2000 disconnected from the data link connector (DLC)
• VCT2000 disconnected from the VIDA cart
• Communication problems in VIDA application or in car.
• No voltage in the data link connector (DLC).

Check therefore: 

• That the control module power supply and ground terminal are fault-free.
• That the fuse for the data link connector (DLC) is intact.
• that the ignition is on
• that the battery voltage (system voltage) is normal (approximately 12 V).

  If necessary a battery charger can be connected during the test.

  For information about charge currents and the battery, see:Battery, charging

• that VCT2000 is correctly connected to the VIDA cart and the data link connector (DLC)
• that VCT2000 and the wiring is fault-free.

Try to establish communication again or exit reading off diagnostic trouble codes (DTCs). Depending on the communication fault, select one of the following options.

1. Try again
2. Fault-trace more comprehensively for the communication problem that has occurred
3. Exit fault-tracing / Read off from the next system.

Fig 1: Identifying VCT2000

Courtesy of VOLVO CARS OF NORTH AMERICA.

Which alternative is requested? 

• 1 

  Refer to Reading off the alarm cause 

• 2 

  Refer to Checking communication errors 

• 3 

  3