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DTC Detection Logic

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detecting condition	Possible cause
P1800	VIAS S/V-1 (Variable intake air system control solenoid valve-1)	An excessively low or high voltage signal is sent to ECM through the intake manifold tuning valve.	Harness or connectors (The solenoid valve 1 circuit is open or shorted.) Intake manifold tuning valve