I hate to answer my own post before someone else.
But the problem has gone away.
I disconnected the battery, and detached the two connectors from the
body control module. Then reattached the connectors, and the battery.
Now it is working again.
I did check the ground signal from the door button (pin C6, C7 of the 32
pin connector), and power voltage (pin H of the 8 pin connector) to make
sure they were okay before I disconnected everything.
So it must be have been either the power down had reseted the program in
the BCM, or the connectors were loose.
Now my other problem is the keyless remote works only intermittently.
Does anyone has a fix for that ?
> My 97' Chevy Venture has lost electrical function of locking/unlocking
> in all doors. The only way I can lock and unlock is to use the key (on
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> this total failure.
> Please help...