Body Control Module Problem
I need your help with a technical series of questions. Please forgive the length of this input but I felt you needed all the details to assist. To give you some background my panic button did not work. I am amazed that the dealer has now started cannibalizing one of their new 2007 coupe to help solve the problem.
Prior to today the following actions were taken:
We used the RF sensor to check the signal from both my key fobs. It was totally acceptable and working correctly.
We checked all wiring for continuity and shorts.
Two Sentry Key Remote Entry Modules (SKREEM) modules were put in. The first had the wrong VIN programmed into it by Chrysler. The second was OK.
The Central Locking Pump/Security System Module (CLS/SSM) was replaced. The CLP/SSM sends signals to the Body Control Module (BCM) via the Controller Area Network (CAN).
The Body Control Module (BCM) was replaced twice. In neither case were we able to program the BCM. The service manual states this must be programmed. We now have the original BCM back in the car.
We are still unable to program the original one and we were unable to program the one in the cannibalized Crossfire in that vehicle. This may interest ALL crossfire owners. Chrysler’s tech support knows about this problem with their computer system but the Crossfire and cargo van from the Mercedes merger has zero priority. So pray you do not have an electrical problem that requires programming of the BCM. Their suggestion was to slow the CAN down by removing ALL the modules on the CAN and then attempting to program the BCM. I can’t tell you how man hours are required to do this and replace them for something that may not work.
Today
We took the Siren out of their car and it squawked like crazy using the built in battery and it should have. We then removed mine and it did not make a sound. We put mine in their car and theirs in my car and their car sounded like the “An old Man or Bird on Crack”. Their siren in my car worked when I opened the door through the window after it was locked but DID NOT work with my panic button. This was the original problem 9 weeks ago.
We ordered a new siren and a NEW key to see if the panic buttons on both FOBs were broke. They are paying for all these parts.
I really know the module systems real well now.
Here is my question:
Does anyone have any suggestions to get the BCM programmed?