I replaced the module in my car based on the information above - but now it's 60 degrees out? go figure. I'll post back with success or failure next time we have a sub-freezing morning.
Edit: was 32 degrees this AM and the heated wheel worked fine. Only one data point but I am hopeful! It didn't feel as hot as previously, but then again, it never actually worked when it was significantly below 45 degrees before.
Last edited by N8N; 12-13-2012 at 04:42 PM.