Originally Posted by zip439

adoni:
The PDF by Pizzaguy is a really great piece to help understand the SKREEM and the SSM/CLP relationship, but so you do not get the wrong idea there are a couple errors that need to be pointed out so you do not run down a rabbit hole. The diagram 4.1 neglects the Body Control Model, which lies between the SKREEM and the SSM/CLP. Pizzaguy talked about the BCM in a few of his post above. Back on page 9 the comments about the flashing lights Fog, turn signals , etc is misleading. The Fog lights, side marker lights and the small marker light in the upper corners of the headlights blink only when the PANIC button is pushed on the FOB. In fact you must hold the PANIC button for about two seconds to activate the siren and the Fog lights. The FOG lights do not flash when only the lock/unlock buttons are used. I just tested that on my SRT6 and it is a correct statement. I can not verify it on a Limited at this time because my Limited is getting a new paint job and I do not have access to it right now.

Does your PANIC button activate the alarm/siren when pushed for at least two seconds?? If your siren is dead the internal batteries have leaked and that can cause a lot of problems. It is why I recommended in an earlier post to disconnect the siren so as to clear it from the system and thus it will not contribute to any problems. Getting it out of all the circuitry at this point is the best thing to do if it does not sound when you push the PANIC button.
Check/ replace fuse #9 in the under hood fuse block. ( It is not located on the side of the dash). If that fuse is blown, or there is a problem in the circuit ( like the siren) your locks will not function from the FOB.