Idle Air Control Valve On-Vehicle Inspection; Inspect Lac Valve Operation - Toyota Celica 2000 Repair Manual

SF-40
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SFI !DLEAIR CONTROL lAC VALVE
IDLE AIR CONTROL (lAC) VALVE
ON-VEHICLE INSPECTION

INSPECT lAC VALVE OPERATION

Initial conditions;
(a)
Engine at normal operating temperature
Idle speed set correctly
Transmission in neutral
AJC switch OFF
Using SST, connect terminals TC and CG of the DLC3.
(b)
SST 09843-1 8020
After engine speed are kept at 900 - 1 ,300 rpm for 5 se-
(c)
conds, check !hat they return to idle speed.
If the rpm operation is not as specified, check the lAC valve, wir­
ing
and ECM.
Remove the SST from the DLC3.
(d)
SST 09843-- 1 8020
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