I have been researching this for a while. Does anybody know how the KAM is powered in these PCM's? Older PCM's have KAM power (12v Battery) all the time. I have searched mutiple wiring diagrams for the E and B pins and there is no battery + power being supplied to the PCM. In addition, DTC's P0603, P1600, and P1633 (all KAM related) are disabled. Reason I am asking is that I have 3 different used PCM's that will clear all DTC's every time I turn the ignition off.