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Home >> Audi >> 2017 >> A4 Prestige >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Generic Scan Tool [CYMC,DJYA,DPAA] (General INFOAMATION) >> St Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Modes 01 - 0A >> Diagnostic Mode 06 - Read Test Results For Specific Diagnostic Functions >> Monitor-ID $3C: Fuel Tank Venting System Leak Test (0.020" / 0.5 mm)
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Monitor-ID $3C: Fuel Tank Venting System Leak Test (0.020" / 0.5 mm)

-- Connect the scan tool.

-- Start the engine and run at idle.

-- Select "Diagnostic Mode 06: Check / test the results of components that are not continuously monitored" .

Select "Monitor-ID $3C" .

-- Select the desired "Test-ID" .

-- Check specified values at idle.

Test-ID (TID) (Hex-ID) DTC Component or System Min. Max. Additional Information
$81 P0456 Leakage 0.022" / 0.5 mm. 0.01 - 0.30 mA/s 256.0 mA/s Refer to DTC P0456 in the DTC summary table.Engine Control Module -- P0456

-- If any of the components or systems fail to meet the specified values, refer to Diagnostic "Mode 03: Interrogating Fault Memory" to check for stored DTC or the corresponding diagnostic repair procedure DIAGNOSTIC MODE 03 - READ DTC MEMORY .

-- Switch the ignition off.