Key On Engine Running (KOER) Self-Test Table: Notes
WARNING: This page is about a different car, the 1989 Mercury Grand Marquis, 1989 Lincoln Town Car, 1989 Lincoln Mark VII, 1989 Ford Mustang, and 1989 Ford LTD Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
This test checks engine sensors under actual operating conditions and at operating temperature. The ECA operates and tests actuators and sensors during this test. A number of special test procedures may be requested by the ECA during this test, depending on vehicle equipment. These tests allow the ECA to test the following sensors.