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Home >> Audi >> 2009 >> A5 Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> GENERIC SCAN TOOL [CALA] (1 Of 2) (COUPE) >> St Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Modes 01 - 09 >> Diagnostic Mode 08 - Request Control Of On-Board System, Test Or Component >> Function Test
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Function Test

NOTE:

If the accelerator pedal is depressed during the test, the test will be aborted.

-- Connect the scan tool.

-- Start the engine and run at idle for at least 15 minutes.

-- Select "Mode 8: Tank Leak Test".

-- Select "Test-ID 01: Tank Leak Test".

-- Check the specified value of the tank leak test at idle.

-- The following will be displayed on the scan tool screen:

Tank Leak Test Specified Value
  • Test Function Active
  • Test Function Is Being Initiated, Please Wait
  • Test Off
  • Test Aborted
Test OK

-- Switch The Ignition Off.

If The Specified Result Is Obtained:

System OK.

If The Specified Result Is Not Obtained:

-- Repeat The Tank Leak Test, Switch The Ignition Off And Start The Engine Again And Let Run For 15 Minutes At Idle.

-- Switch The Ignition Off.

If The Specified Result Is Again Not Obtained:

-- A Leak May Be Present. Refer To EVAP SYSTEM, CHECKING FOR LEAKS .