DTC Summary

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P0451	Evaporative Emission Control System Pressure Sensor Range / Performance	Either of the following conditions is met: Sensor output voltage fluctuates frequently in a certain time period. Sensor output voltage does not vary in a certain time period.	Canister pump module Connector/wire harness (canister pump module - ECM) EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose) ECM	Comes on	DTC stored	DTC for Mexico Models - Applies
P0452	Evaporative Emission Control System Pressure Sensor / Switch Low Input	EVAP pressure sensor less than 42.11 kPa(abs) [315.867 mmHg(abs)] for 0.5 seconds.	Canister pump module Connector/wire harness (canister pump module - ECM) EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose) ECM	Comes on	DTC stored	DTC for Mexico Models - Applies
P0453	Evaporative Emission Control System Pressure Sensor / Switch High Input	EVAP pressure sensor higher than 123.761 kPa(abs) [928.331 mmHg(abs)] for 0.5 seconds.	Canister pump module Connector/wire harness (canister pump module - ECM) EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose) ECM	Comes on	DTC stored	DTC for Mexico Models - Applies

DTC No.	Monitoring Item	Detection Timing	Detection Logic
P0451	Canister pressure sensor abnormal voltage fluctuation	EVAP monitoring (ignition switch off) Engine running	2 trip
P0451	Canister pressure sensor constant voltage	EVAP monitoring (ignition switch off)	2 trip
P0452	Canister pressure sensor low input	Ignition switch ON EVAP monitoring (ignition switch off)	1 trip
P0453	Canister pressure sensor high input	Ignition switch ON EVAP monitoring (ignition switch off)	1 trip

HINT:

The canister pressure sensor is built into the canister pump module.