Communication Fault

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.

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.

Try again
Fault-trace more comprehensively for the communication problem that has occurred
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 General Information About Programming, Additional Heater
2
Refer to Checking Communication Errors
3
3