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Type C Systems (Description
Switch outputs rest open, and both (+) 12V and (-) ground are switched for each direction of
operation. This type of circuit requires 2 relays for each set of windows to supply ground to each
motor circuit. The type is rare, but is found in Chevrolet Camaro/Pontiac Firebird and also newer
GM pickups and SUVs.
Type C Systems Front Windows (Wiring)
Brown H2/1
White
H2/2