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10–2
1ZZ–FE:
Open
Close
Valve
3ZZ–FE:
Open
Close
Valve
AVENSIS REPAIR MANUAL (RM1018E)
ENGINE CONTROL SYSTEM
3.
NOTICE:
VaIve
Y
Y
HINT:
When the ISCV system has malfunctions except for its adher-
ence, DTC P0505 is detected.
(a)
VaIve
HINT:
ISCV moves within 0.5 second.
A60620
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–
SFI SYSTEM (1ZZ–FE/3ZZ–FE)
INSPECT IDLE AIR CONTROL VALVE
It is impossible to check the resister value and the op-
eration of ISCV by itself, because the ISCV has an IC
circuit inside it, which transforms the duty signal
from the ECM to the derive signal.
Clear the DTC after inspection.
Operation inspection.
(1)
Connect the ISCV connector to the ISCV.
(2)
Check the valve movement when the ignition switch
is turned ON.
Movement:
Half open @ fully close @ fully open @ half open
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