Dtc summary
Description
The description can be found in the evap (evaporative emission) system (see page es-335).
Inspection procedure
Refer to the evap system (see page es-340).
Monitor description
The two monitors, key-off and purge flow, are used to detect malfunctions relating to dtc p0441. The key-off monitor is initiated by the ecm internal timer, known as the soak timer, 5 hours* after the ignition switch is turned off. The purge flow monitor runs while the engine is running.
5 Hours* after the ignition switch is turned off, the leak detection pump creates negative pressure (vacuum) in the evap system. The ecm monitors for leaks and actuator malfunctions based on the evap pressure.
Hint:
*: If the engine coolant temperature is not below 35°c (95°f) 5 hours after the ignition switch is turned off, the monitor check starts 2 hours later. If it is still not below 35°c (95°f) 7 hours after the ignition switch is turned off, the monitor check starts 2.5 Hours later.
*: If only a small amount of fuel is in the fuel tank, it takes longer for the evap pressure to stabilize.
In operation c, the leak detection pump creates negative pressure (vacuum) in the evap system.
The evap system pressure is then measured by the ecm using the canister pressure sensor. If the stabilized system pressure is higher than [second reference pressure x 0.2], The ecm interprets this as the purge vsv (vacuum switching valve) being stuck open. The ecm illuminates the mil and sets the dtc (2 trip detection logic).
In operation d, the canister pressure sensor measures the evap system pressure. The pressure measurement for purge vsv monitor is begun when the purge vsv is turned on (open) after the evap leak check. When the measured pressure indicates an increase of 0.3 Kpa-g (2.25 Mmhg-g) or more, the purge vsv is functioning normally. If the pressure does not increase, the ecm interprets this as the purge vsv being stuck closed. The ecm illuminates the mil and sets the dtc (2 trip detection logic).
The purge flow monitor consists of the two step monitors. The 1st monitor is conducted every time and the 2nd monitor is activated if necessary.
While the engine is running and the purge vsv is on (open), the ecm monitors the purge flow by measuring the evap pressure change. If negative pressure is not created, the ecm begins the 2nd monitor.
The vent valve is turned on (closed) and the evap pressure is then measured. If the variation in the pressure is less than 0.5 Kpa-g (3.75 Mmhg-g), the ecm interprets this as the purge vsv being stuck closed, and illuminates the mil and sets dtc p0441 (2 trip detection logic).
Atmospheric pressure check: in order to ensure reliable malfunction detection, the variation between the atmospheric pressures, before and after conduction of the purge flow monitor, is measured by the ecm.
Obd ii monitor specifications
Obd ii monitor specifications
Monitor result
Refer to checking monitor status (see page es-17).
Transponder chip malfunction
Description
This dtc is output when: 1) during key code registration, a key malfunction
occurs; 2) the key code was
unable to be registered properly.
Inspection procedure
Reregister key
Clear the dtc (see page ei-18).
Reregister the key code with the transponder key ecu
(s ...
Installation (2006/01- )
Install sliding roof weatherstrip
Install the sliding roof weatherstrip.
Position the joint of the weatherstrip at the rear
center.
Align the marks on the weatherstrip with the
middle marks at the corners of the plastic on
the edge of the sliding roof panel and install the ...
Initialization
Initialize sliding roof drive gear subassembly
Notice:
When replacing the sliding roof drive gear, the
sliding roof drive gear requires initialization. If a
reset is not executed, the following functions do not
operate: auto operation and key off operation.
Turn the ignition switch on. ...