Communication problems

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 cable is disconnected
Ignition off

The fault could also have been stored by a communication problem when the engine was started.

Check that the data link connector (DLC) cable is secure.
Try to establish communication again or exit reading off diagnostic trouble codes (DTCs).

Depending on the communication fault, select one of the following alternatives.

Try again.
Refer to Reading off diagnostic trouble codes (DTCs)
Fault-trace the communication problems.
Refer to Checking communication with RTI control module
Stop fault-tracing.
Stop