Idle Up System Check

Check
1) Warm up engine to normal operating temperature.
2) Turn A/C switch OFF, if equipped.
3) Turn steering wheel fully and check idle speed. Engine idle speed drops a little momentarily when steering wheel is turned fully but returns to its specified level immediately. If P/S pressure switch connector is connected, check the same with that connector disconnected. Momentary drop of engine idle speed should be less when it is connected than when disconnected.