Ready Remote 24927 Guía de instalación descargar pdf (Pagina 28)

Type A: Three-wire (+) pulse controlling factory lock relays

The system can control Type A door locks directly, with no addi-

tional parts. The switch will have three wires on it; one will test

(+)12 volt constantly. The others will alternately pulse (+)12 volt

when the switch is pressed 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 and unlock, 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 appears in 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 be

controlled without relays.

Almost all newer Fords are Type B. Ford builds no Type A systems.

Chrysler now uses multiplex door lock systems (Type G or H) that

require relays and resistors to properly interface the circuit.

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Ready Remote 24927 Guía de instalación Pagina 28