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ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-155
7) Check that valve (2) of IAC valve (1) opens and closes once
and then stops in about 60 ms as soon as ignition switch is
turned ON.
NOTE:
• This check should be performed by two people, one
person turns on ignition switch while the other checks
valve operation.
• As valve operation is momentary, it may be over-
looked. To prevent this operation check 3 times or
more continuously.
If valve of IAC valve does not operate at all, check wire
harness for open and short. If wire harness is in good
condition, replace IAC valve and recheck.
8) Install IAC valve to throttle body referring to "Idle air control
(IAC) valve removal and installation" in Section 6E1.
9) Connect negative cable at battery.
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