Start the fuel tank system test

Leak diagnostic active 

This parameter displays that test is underway. When the parameter displays YES and has returned to NO the test is ready or has been interrupted.

Fault status 

These parameters display the status of those diagnostic tests which are included in the leak diagnostic.

The following alternatives are available: 

1. When the active leak diagnostic has displayed YES and then NO and all fault status have moved to clear, fault not found, the test has been run without any faults being found.

   OKAY:  Troubleshooting has been completed.

2. When the active leak diagnostic has displayed YES and then NO and one of the fault status displays fault found. A fault has been detected in that part of the test.

   Refer to Test pressurization of the fuel tank system 

3. When the active leak diagnostic has displayed YES and then NO and one or several of the fault statuses has not gone and no fault is detected.

   Or if active leak diagnostic unchanged status to YES.

   The test has not started or been interrupted.

   Try again or select 3 to interrupt.

   FAULT TRACING FAILED:  The fault should have been detected and remedied. As this is not the case fault-tracing has failed. Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

Courtesy of VOLVO CARS OF NORTH AMERICA.