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.

Other information 

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. Refer to READING OFF THE ALARM CAUSE .
2. Fault-trace more comprehensively for the communication problem that has occurred. Refer to CHECKING COMMUNICATION ERRORS .
3. Exit fault-tracing/Read off from the next system. Troubleshooting has been completed.

Fig 1: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

Courtesy of VOLVO CARS CORPORATION