I'm trying to replace the clutch fan with electric fans on a 2008 Chevy 2500.. got the wiring all done, turned the fans MILS to 2 trip emission related in diagnostics, and turned the codes on for high and low speed circuits, set my temps in the fan table... but they still don't work...the funny thing is that i can turn them on using a scanner ( MODIS ) so i know the outputs from the E38 work, but can't figure out why the ECU not turning them on at the set temps or with the A/C pressure.
any ideas.