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While doing some more "surfing", I found related Electric Brake Controller install on a Winstar van - that has the same "low voltage" current on its factory brake peddle switch as well.
For more details, surf entire thread of:
http://www.irv2.com/forums/showthread.php?t=21923
http://rides.webshots.com/photo/2882...56340866fmdCMN
To fix their situation, they applied:
A - Found wires tucked above the brake pedal. Assume brake signal wires out of BCM.
B - Used a Brake Controller that ignored the lower 3 volts (of the brake switch wire).
For the '07 / '09 Uplander/Montana vans, I wonder if Fix A is under van's dash as well? If not, I wonder if our purchased brake controller ignores the +3 volts (used for light bulb management current)??? Sounds like emails to our respective Brake Controller's Tech Support folks. And/or, we each do our own Brake Controller to Brake Peddle Switch "capatibility" (sort of speaking) tests.
Hope this helps as well...
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