DTC P0443-13: Evaporative Emission System Purge Control Valve "A" Circuit Open [03/2023 - ]: Description

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To reduce hydrocarbon (HC) emissions, evaporated fuel from the fuel tank is routed through a canister to the intake manifold for combustion in the cylinders.

The ECM changes the duty signals to the purge VSV so that the intake amount of evaporated fuel routed to the cylinders is appropriate for the driving conditions (engine load, engine speed, vehicle speed, etc.) after the engine is warmed up.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Note
P0443-13	Evaporative Emission System Purge Control Valve "A" Circuit Open	Both of the following conditions are met (1 trip detection logic): The purge VSV operation duty signal is 5 to 95%. The target control value and actual control value do not mutch for 10 seconds or more.	Open or short in purge VSV circuit Purge VSV ECM	Comes on	SAE Code: P0443 DTC for Mexico Models: Applies (Mexico models only)