Model 24923 Installation Guide - Ready Remote

Type A: Three-wire (+) pulse controlling factory lock relaysThe system can control Type A door locks directly, with no additional parts. The switch will have threewires on it; one will test (+)12 volt constantly. The others will alternately pulse (+)12 volt when the switch ispressed to the lock or unlock position.If you cannot get to the switch, and you find a set of wires that pulse (+)12 volt alternately on lock andunlock, make sure that it is not a Type C direct-wire system.Here is a test: Cut the wire that pulses (+)12V on lock, and then operate the switch. If the locks stop working,then you have the correct wire.Many GM vehicles use Type A locks. However, some GM vehicles are Type C. This system usually appearsin older GM vehicles (1980-1995). The full-size pickups (1989-up), many of the Blazers, the Corvette,1995 Cavalier/Sunfire 1993, and the newer Camaro/Firebird, all use Type C door locks, and cannot becontrolled without relays.Almost all newer Fords are Type B. Ford builds no Type A systems. Chrysler now uses multiplex door locksystems (Type G or H) that require relays and resistors to properly interface the circuit.Important: Remember that these wires function in the reverse for TypeA and Type B.(-)GREEN(+) 12V CONSTANT(-)BLUE(+) 12V CONSTANT(+) 12V CONSTANT© 2010 Directed Electronics. All rights reserved.17