Related DTCS

DTC REFERENCE

DTCs	Monitoring Items	See procedure
P043E	0.02 inch orifice clogged (built into pump module)
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
P0450	Pressure sensor (built into pump module) voltage abnormal fluctuation
P0451	Pressure sensor (built into pump module) noise Pressure sensor (built into pump module) signal becomes fixed/flat
P0452	Pressure sensor (built into pump module) voltage low
P0453	Pressure sensor (built into pump module) voltage high
P0455	EVAP gross leak
P0456	EVAP small leak
P2401	Vacuum pump stuck OFF (built into pump module)
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)
P2610	Soak timer (built into ECM)

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

Fig 1: EVAP System Malfunctioning Areas Chart

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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.