NAV 2003 4400LP VIN 3H602734 ESN 1393226 . Cannot get ECM to cntrl fan solenoid. Pin 8 on gray cnntr body out of ECM should switch grd off and on to cntrl solenoid. B+ side of solenoid fed hot with KOEO & KOER. ECM sends grd. STEPS TAKEN: checked wiring,even r... Login to read more.