Originally Posted by
onehundred80
The entire security system is quite complicated and involves a lot of parts and anyone of them could be the cause. In the service manual there are the tests for each part. I think that is the only way to go to isolate the problem.
Here is the circuitry of the security system. (Click)
What's missing from that is how does the HomeLink tell the SKREEM to tell the BCM to tell the CLP/SSM to lock/unlock.
I'm frankly amazed that it EVER works at all !
A bunch of "he said, she said"