Just fix mine with the help of this site. I did not disconnect the negative battery cable. It was a little difficult, but I got the connectors out hooked the used one in that I had shipped from a salvage yard. It worked perfectly.
This site has been a great help!!! Over the last two weeks I fixed a P0442 error (small evap leak) by cutting 1 inch of hose from 3 hoses going into the evap canister, I fixed my heated seat, I fixed the TCCM, and the biggest of all, I replaced the a/c evap, heater core, and blower motor. I am now relieved and cool with my a/c. Thanks everyone for this site.