Toyota Camry Manual page 1345

DI–318
DTC P0441
DTC P0446
CIRCUIT DESCRIPTION
The vapor pressure sensor and VSV for vapor pressure sensor are used to detect abnormalities in the evap-
orative emission control system.
The ECM decides whether there is an abnormality in the evaporative emission control system based on the
vapor pressure sensor signal.
DTCs P0441 and P0446 are recorded by the ECM when evaporative emissions leak from the components
within the dotted line in fig. 1 below, or when there is a malfunction in either the VSV for EVAP, the VSV for
vapor pressure sensor, or in the vapor pressure sensor itself.
fig. 1
(7)
DIAGNOSTICS
Evaporative Emission Control System
Incorrect Purge Flow
Evaporative Emission Control System Vent
Control Malfunction
(6)
VSV
for EVAP
(5)
Charcoal Canister
– ENGINE (1MZ–FE)
ECM
Vapor Pressure
Sensor
(1)
VSV for Vapor
(4)
Pressure Sensor
(3)
Author :
(2)
Fuel Tank Over
Fill Check Valve
(8)
(9)
Fuel Tank
Date :
DI080–07
A01654
553