Originally Posted by
adoni
Started with new batteries, after changing car battery, just to be sure. I will look into posts #2 & #6. It's still odd though, I turn the fob one turn, so it's vertical. Press lock, doors lock, press unlock, doors unlock. Turn fob off, exit car, fob only makes lights flash.
I will continue troubleshooting.
So you are telling us that the CLP/SSM works in every case except for the FOB functions.
But then you say "lights flash". Unfortunately, this is not helpful - exactly WHICH LIGHTS FLASH?
The answer to this question tells us where the breakdown is. The FOB signals the SKREEM. The SKREEM flashes the turn signal lights and then tells the CLP/SSM to lock/unlock the doors.
So if the SKREEM is flashing the turn signals (once for unlock, three times for lock), and the locks do not activate, it would appear that the SKREEM and CLP/SSM are not talking.
The fact things work from the ignition switch and console button tells us that the CLP/SSM might be OK. If the SKREEM can't tell the CLP/SSM to lock/unlock the doors, communication path from SKREEM is:
SKREEEM----BCM----CLP/SSM. THis means any one of these three modules can be the issue. Since replacing the batter in the car seemed to start this, I"d do this:
Turn headlights on.
Disconnect battery and leave it so for 1/2 minute.
Reconnect battery (dont let the spark bother you).
Turn headlights off.
Try FOB now. See if things work. If not, its one of the three modules. If this is the case, sit and think, is there ANYTHING else about the car that is not working after the battery change?
Reverse lights? Gear indicator? Wing?
The fact the FOB flashes lights tells me the SKREEM is hearing and responding to the FOB.