Directed Electronics Nissan User Manual

Page 19

ing the doors from the driver's or passenger side using the key

activates all the actuators in the vehicle. This requires a slight

modification to the door lock harness. Mercedes-Benz and Audi

1985 and newer.

■ T

Tyyp

pee F

F::

One-wire system - cut to lock, ground to unlock. This

system is found in late-model Nissan Sentras, some Nissan

240SX, and Nissan 300ZX 1992 and later. It is also found in

older Mitsubishis, and some early Mazda MPV’s.

■ T

Tyyp

pee G

G::

Positive (+) multiplex. This system is most commonly

found in Ford, Mazda, Chrysler and GM vehicles. The door lock

switch or door key cylinder may contain either one or two resistors.

■ T

Tyyp

pee H

H::

Negative (-) multiplex. The system is most commonly

found in Ford, Mazda, Chrysler and GM vehicles. The door lock
switch or door key cylinder may contain either one or two resistors.

at the switch

■

Three-wire switches will have either a constant ground input or

a constant (+)12V input, along with the pulsed lock and unlock

outputs to the factory relays.

■

Many BMW’s and VW’s have no external switch. The switches are

inside the actuator, and instead of pulsing, the proper wires will

flip-flop from (+)12V to (-) ground as the door locks are operated.

■

Direct-wired switches will have a (+)12V constant input and one

or two (-) ground inputs, along with two output leads going

directly to the lock motors.

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