Determine the Door Locking/Unlocking circuitry that your vehicle is equipped with. Fig.
The majority of vehicles come
Trigger circuits. Find the location of the appropriate circuitry for
hicle (Make, Model, Year Diagrams can be found on our web site at www.GalloTech.com) If the Trigger wire
is 0v when the Lock/unlock switch is depressed then you have a Neg. (
). If the trigger wire is +12v
when depressing the Lock/unlock s
witch then you have a Pos
Benz vacuum motor operation use Fig.
. For Reverse Polarity applications, were the
lock and unlock wires rest at
PIN WIRE HARNESS DIAGRAMS: