Check power and ground betwen the ecu an the computer link connrctor
P0125 is about coolent temp. sensor the problem is not the coolent sensor. When you have lazy Oxygen sensor you get this code. It is sensor 1 but you need to find out which bank, the only way you can find this out by snapon scanner.
Mostly (if not completely) Snapon
There are many scanners that will turn off light. Chrysler drb scan tool ,snapon scanner. Needs to be turned off with tool. I think auto zone does free analysis.
sears is not capable of marketing snapon. speculation is outlandish
Try Sears, Napa, Snapon, or my favorite Matco.
Power steering pulley puller Snapon?
You can either purchase them at a local home improvement store or you can find an online retailer.
I personally think that all craftsman tools are better than snap on.
have it scaned by a snapon computer it will tell the bad one
have the code read by an independant garage (approx £20) make sure they got a tidy reader like snapon soloris
you will need an Allen key 9mm to remove the caliper.however very difficult to find one unless by snapon tools
You can contact a local Snap-On sales representative, or you cam google your location and follow it with snap on salesman, for example "New york city snap on dealers"