2010 Limited with Auto Temp Control. Only the temperature knob has any effect. Even turning the system off, it still blows, like on Medium, and the temperature is the only change I can make. Computer failure? Wondered about unhooking the battery for a minute might reset it? Nothing else seems to be wrong or not working. Anyone help me out in what to start with-hope not to end up at the stealership.
System had been working fine. Just turned 41M. Found 3 possible fuses that could turn off the juice to the HVAC system. Pulled them, and reinserted 10 seconds later, and everything seems to have rebooted and working like before. Gremlin in the 12 Volt? All is well.
Now the EVIC only shows 0 degree outside temp. The blower only runs at one speed, the temp seems set and not adjustable. Setting to manual, or turning the HVAC off have no effect.
I've pulled fuses, and disconnected the positive battery terminal for 6 minutes. Made no effect. I suspect it's now time to see the dealer unless one of the Jeep GURU'S know of something I can do or check.
Thanks for the responses.
Well, here is the good and bad news.... Had the same issue, same approx. mileage, same year... The unit seems locked up. Air comes out, but one speed and auto or manual has no effect. Bet you that when you press the A/C button the A/C indicator lamp will blink....
Good News... The computer is contained in the climate control unit itself, not part of a remote module.
Bad News... You will need to replace the control module. Mine had a bumper to bumper warranty still in effect, so covered.
The part is 55111955AC, List price $132.00 plus a core charge... on parts sites I use, one was at $92.20 plus core charge, the other $105.60 plus core charge. So not that huge of an expense but still not one you should have at 40K miles.....
I didn't do mine but see it as a super easy DIY. Remove the center stack trim. Unbolt the control unit and unplug. Plug in the new one.
I just had this happen on my 2010 KK, HVAC fan was on hi, couldn't even shut it off and it wasn't cooling. I pulled the M11 fuse for 15 seconds and everything now works perfectly. Thanks for the reference should I need to replace the HVAC computer.