I just replaced my head gasket on my '99 Outback and ended up blowing the heat sensor relay when we were test driving it because we forgot to hook up a hose and lost our coolant. I can't seem to find any information online as to where the sensor it. I had it diagnosed over the phone by Subaru.

I'm not sure where to find the heat sensor relay to replace it. Any help would be great, thanks!

Jim