Intermittent AC problem, AC blows with key off, SDS pic
2003 C32 with C-AAC
Symptoms, 95% of the time the A/C functions correctly:
B1020 Evaporator temperature sensor code
AC continues to run for a few seconds after key is turned off.
AC blows hot air on low temp setting.
AC doesn't blow at all with fan set to max.
My thoughts:
Because the AC would stay on after the key turns off I'm guessing the Front SAM is intermitantly failing.
Has any one had issues like mine?


