ECM "Ed98" Data Code
WARNING: This page is about a different car, the 1988 Cadillac Seville and 1988 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.
The ignition cycle counter value is the number of times the ignition key is cycled to the "OFF" position since an ECM trouble code was last detected. After 50 ignition cycles without any malfunction being detected, all stored ECM codes are cleared. See Figure .