2002 Escalade Keyless Entry failure

[bgpianoman]

I have a 2002 Escalade base model. I'm trying to find the location of the keyless entry module (RKE) . The keyless system had been intermittently working the last two years. At first it would stop working when it got below 60 degrees. Now it's dead all the time. I've tried replacement batteries on the old fobs and even bought new fobs. Before it went completely out I was able to program them all just fine. I saw some GMs have a PDM module instead of the RKE module. Any direction would be helpful. Thanks One other clue maybe not related??? The AC clutch will not come on below 70 degrees either, but if I ground the relay it will come on. I was told this was a Temperature sensor up on the radiator core support. I changed it but still have the same problem.

 

[Big Mama]

Welcome to the forum from Virginia. @swathdiver or @iamdub have a lot of knowledge about your rig.