I had the same code last week, witout sounding stupid where is the sensor ? I looked all over and could not find it. I believe I read somewhere on here dealership told someone there was no fix [eyecrazy] . Things like this is why I bought my on obdII scanner. [whistle]

Ive had this code go on and off on my truck since it was about a year old. Had it to 2 different dealers they say they need to keep the truck a day or two with no loaner vehicle I tell em go to h***. Latest was to blame it on the Mopar winter front I have on it. Just ignore it goes away comes back goes away comes back and so on and so on. The longest I ve gone this winterwith it off was three weeks. It also doesnt seem to be only when plugged in Ive unplugged in the morning go to work not plugged in all day start to go home trips right away sometimes others while idling a few minutes to warm up. This crappy little sensor is under the drivers side battery.

How did you relocate your battery temp sensor? Thanks Joe