DTC P0451-00; Fuel Tank Pressure Sensor: Sensor Characteristic Malfunction: Notes

NOTE:

To determine the malfunctioning part, proceed with the diagnostics from "Function Inspection Using M-MDS".

Details On DTCs

DETECTION CONDITION AND POSSIBLE CAUSE

DESCRIPTION	Fuel tank pressure sensor: sensor characteristic malfunction
DETECTION CONDITION	Determination conditions	The fuel tank pressure sensor input voltage is the threshold or more.
	Preconditions	Battery voltage: above 8 V1 Period ignition is switched off before engine starts: 120 min or more Purge solenoid valve not operating The following DTCs are not detected: Purge solenoid valve: P0443:00 Evaporative passage blockage: P1450:00 1: Value can be verified by displaying PIDs using M-MDS
	Malfunction determination period	During one drive cycle
	Drive cycle	2
	Self test type	CMDTC self test
	Sensor used	Fuel tank pressure sensor
FAIL-SAFE FUNCTION	Not applicable
VEHICLE STATUS WHEN DTCs ARE OUTPUT	Illuminates check engine light.
POSSIBLE CAUSE	Fuel tank pressure sensor connector or terminals malfunction PCM connector or terminals malfunction Fuel tank pressure sensor malfunction Charcoal canister malfunction CV solenoid valve malfunction Evaporative hose malfunction PCM malfunction