SoCal SL55 AMG

I’ve replaced both batteries in the car after that the AC/Heaterblower won’t turn off I have checked all the fuses everything looks good, WhenI disarm the car with the remote the blower come on and when the car is turnedoff the blower stays on for about 10 minutes I’ve tried turning the numbs inall positions and no luck.

Plutoe

Obviously something is not turning off the voltage supply to the fan,however without the tools this aint a DIY at the girlfriends house, because you have two SAM's, the AC control unit, and the K40 relay switching voltages---ooooooooooooooooop's

Find an indy with great CAN diagnostics, but avoid shops that have sheep grazing in the back yard!!

SoCal SL55 AMG

Thanks for the reply.
The EIS IgnitionModule has been checked, The rear SAM, the front SAM and the driver SAM havebeen replaced still won’t read or communicate with the diagnostic. The Shop I took it to gave up after spending hours and hours trying to find the problem. this all started after one of the batteries going dead and I replaced both.

Plutoe

If the sheep hearders can't communicate with the SAM's thats the problem--find someone with DAS Xentry, because they will

and off course this all assumes the SAM's were new---not new to the car,but new!!