toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Component Inspection|Page 2233 > < Idle Speed/Throttle Actuator - Electronic|Locations
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Idle Speed/Throttle Actuator - Electronic: Testing and Inspection
Component Inspection

INSPECTION

1. REMOVE THROTTLE BODY

2. REMOVE IAC VALVE

Remove the 3 screws, IAC valve and gasket.

3. INSPECT IAC VALVE OPERATION

a. Check that the IAC valve is half-opened.
b. Connect the IAC valve connector.
c. Turn the ignition switch ON.
d. Check that the IAC valve operates in sequence, half open, fully close, fully open and then half open, within 0.5 seconds.

If the operation is not as specified, replace the IAC valve.

e. Turn the ignition switch OFF.
f.

Disconnect the IAC valve connector.

4. REINSTALL IAC VALVE

Install a new gasket and the IAC valve with the 3 screws.

5. REINSTALL THROTTLE BODY

Component Inspection|Page 2233 > < Idle Speed/Throttle Actuator - Electronic|Locations