Engine Control Module
WARNING: This page is about a different car, the 1999 Cadillac Catera. However, it is still accessible from the selected car via links, so may be relevant.
- The Malfunction Indicator Lamp (MIL) is illuminated on the second consecutive drive trip that the diagnostic runs and fails
- The ECM records the operating conditions at the time the MIL is illuminated in the Freeze Frame