ISC Initialization
WARNING: This page is about a different car, the 2002 Subaru Outback, 2002 Subaru Legacy, 2002 Subaru Impreza, and 2002 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
The idle speed control (ISC) motor must be initialized whenever ECM memory is cleared. To initialize ISC, turn ignition switch on. Wait 3 seconds before starting engine.