Corolla S Sedan L4-1794cc 1.8L DOHC MFI (2001)
Idle Speed/Throttle Actuator - Electronic: Testing and Inspection
On-Vehicle Inspection
ON-VEHICLE INSPECTION
INSPECT IAC VALVE OPERATION
a. Initial conditions:
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Engine at normal operating temperature
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Idle speed set correctly
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Transmission in neutral
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A/C switch OFF
b. Using SST, connect terminals TE1 and E1 of the DLC1.
SST 09843-18020
c. After engine speed are kept at 900 - 1,300 rpm for 5 seconds, check that they return to idle speed.
If the rpm operation is not as specified, check the IAC valve, wiring and ECM.
d. Remove the SST from the DLC1.
SST 09843-18020