Idle Air Control System
SYSTEM TEST1. Warm up the engine to normal operating temperature.
2. Turn all electric loads OFF.
3. Connect a tachometer to the data link connector terminal IG- as shown.
4. With the cooling fan off, verify that the idle speed is within specification.
Idle speed (Neutral): 600-700 (650 ± 50) rpm
5. Verify that the idle speed is within the specification under the conditions in the image.