Start the fuel tank system test

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.

NOTE:

If the engine coolant temperature (ECT) is under 70 °C (158°F) the test cannot start.

Fig 1: Engine Start Verification

Courtesy of VOLVO CARS OF NORTH AMERICA.

Engine idling.
Start the quick test
Swiftest Running Status

This parameter shows the status of the test, with two possible values:

-RUNNING

-NOT RUNNING

Fault Status

These parameters show the status of the diagnostic tests that are included in the Leakage Diagnostic Test:

-Status failure Canister Close Valve

-Status failure Rough leak

-Status failure PCV Open

-Status failure Small Leak.

The Fault Status parameters have three possible values, depending on the test outcome:

-Not ready

-Ready, no fault found

-Ready, fault found

Sensor / actuator parameters (plotter)

-Fuel Tank Pressure (red line)

-Canister Close Valve (green line)

- PCV (yellow line)

Swift Test Procedure

Initiate Swift Test

The Swift Test is initiated with "Start reading" button.

When the test has started, "RUNNING" will be displayed in the Running status display. The test will go through the individual procedures in order:

1. Status failure Canister Close Valve

2. Status failure Rough Leak

3. Status failure PCV Open

4. Status failure Small Leak.

Stop / abort test conditions

The test will stop when one of these conditions has been fulfilled:

-The test has been completed successfully

-A fault condition has been found

-One or more required conditions for performing the test is no longer valid. This could for example be extreme fuel trim integrator value, caused by saturated canister.

When the test has stopped, "NOT RUNNING" will be displayed. To complete the test cycle, and store possible DTCs, the accelerator has to be depressed briefly and then released. The Swift Test Status will then shift from "NOT RUNNING" to "RUNNING" and then back to "NOT RUNNING". This procedure will also re-initiate a test that has been aborted. Three such attempts are possible, after that the engine has to be switched off and restarted to enable a new Swift Test cycle.

Test complete

If a fault has been detected by the test, a DTC will be stored in the Engine Control Module. Proceed with the applicable fault tracing procedure. The DTCs must be cleared before the Swift Test can be started again.

Fig 2: Identifying VCT2000 Diagnostic Tool
Courtesy of VOLVO CARS OF NORTH AMERICA.

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OKAY: Troubleshooting has been completed.