There was a GM recall years ago for the switch if I am right. You have a pretty good relationship with a GM dealer as I recall, it wouldn't hurt to ask.
It seems to me they installed a new switch and/or reworked some of the wiring.
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars
There was a GM recall years ago for the switch if I am right. You have a pretty good relationship with a GM dealer as I recall, it wouldn't hurt to ask.
It seems to me they installed a new switch and/or reworked some of the wiring.
It was for the power mirrors....... We installed a fused jumper harness to the electric outside rearview mirror switch. Had to remove a couple of terminals and re-terminal in the fuse.... (.3 we got paid)