DTC 16840

SAE VAG Description
P0456 16840 Evaporative Emission System Leak Detected (very small leak)

N80 - Evaporative Emission (EVAP) Canister Purge Regulator Valve
- Evaporative Emission (EVAP) canister purge regulator valve checking. Evaporative Emission (EVAP) Canister Purge Regulator Valve, Checking

- EVAP canister system sealing checking. EVAP Canister System Sealing, Checking

Note: Check for proper sealing of EVAP canister system

- Output Diagnostic Test Mode (DTM) (function 03). Output Diagnostic Test Mode (DTM) (Function 03)