Related DTCS

WARNING: This page is about a different variant/trim than selected.

DTC	Monitoring Item	See procedure
P043E	0.02 inch orifice clogged (built into pump module)	Refer to DTC P043E: Evaporative Emission System Reference Orifice Clog Up; DTC P043F: Evaporative Emission System Reference Orifice High Flow; DTC P2401: Evaporative Emission System Leak Detection Pump Control Circuit Low; DTC P2402: Evaporative Emission System Leak Detection Pump Control Circuit High; DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low
P043F	0.02 inch orifice high-flow (built into pump module)
P0441	Purge VSV (Vacuum Switching Valve) stuck closed Purge VSV stuck open Purge flow	Refer to DTC P0441: Evaporative Emission Control System Incorrect Purge Flow
P0451	Pressure sensor (built into pump module) noise Pressure sensor (built into pump module) signal becomes fixed/flat	Refer to DTC P0451: Evaporative Emission Control System Pressure Sensor Range / Performance; DTC P0452: Evaporative Emission Control System Pressure Sensor / Switch Low Input; DTC P0453: Evaporative Emission Control System Pressure Sensor / Switch High Input
P0452	Pressure sensor (built into pump module) voltage low
P0453	Pressure sensor (built into pump module) voltage high
P0455	EVAP gross leak	Refer to DTC P0455: Evaporative Emission Control System Leak Detected (Gross Leak); DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak)
P0456	EVAP small leak
P2401	Vacuum pump stuck OFF (built into pump module)	Refer to DTC P043E: Evaporative Emission System Reference Orifice Clog Up; DTC P043F: Evaporative Emission System Reference Orifice High Flow; DTC P2401: Evaporative Emission System Leak Detection Pump Control Circuit Low; DTC P2402: Evaporative Emission System Leak Detection Pump Control Circuit High; DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low
P2402	Vacuum pump stuck ON (built into pump module)
P2419	Vent valve stuck ON (closed) (built into pump module)
P2420	Vent valve stuck OFF (vent) (built into pump module)	Refer to DTC P2420: Evaporative Emission System Switching Valve Control Circuit High
P2610	Soak timer (built into ECM)	Refer to DTC P2610: ECM / PCM Internal Engine Off Timer Performance

If any EVAP system DTCs are set, the malfunctioning area can be determined using the table below.

Fig 1: EVAP System DTC Chart

NOTE:

If the 0.02 inch reference pressure difference between the first and second checks is greater than the specification, the DTCs corresponding to the reference pressure (P043E, P043F, P0441, P0455, P0456, P2401, P2420) will be all stored.