Directed Electronics Nissan User Manual

Page 18

the switch wires to be used, you can usually simplify the instal-

lation by locating the same wires in the vehicle’s kick panel. If no

central locking switch is found, the installation may require a

door lock actuator.

There are eight common types of door lock circuits (some vehi-
cles use more unusual systems):

■ T

Tyyp

pee A

A::

Three-wire (+) pulse controlling factory lock relays.

Most GM, some Ford and Chrysler, 1995 Saturn, some new
VW, newer BMW.

■ T

Tyyp

pee B

B::

Three-wire (-) pulse controlling factory lock relays.

Most Asian vehicles, early Saturn, some BMW and Porsche.

■ T

Tyyp

pee C

C::

Direct-wired reversing-polarity switches. The switch-

es are wired directly to the motors. This type of system has no

factory relays. Most Fords, many GM two-doors cars and trucks,

many Chryslers.

■ T

Tyyp

pee D

D::

Adding one or more aftermarket actuators. These

include slave systems without an actuator in the driver’s door,

but with factory actuators in all the other doors. Type D also

includes cars without power locks, which will have actuators

added. All Saabs before 1994, all Volvo except 850i, all pre-1997

Subarus, most Isuzus, and many Mazdas. Some mid-eighties

Nissans, pre-1985 Mercedes-Benz and Audi.

■ T

Tyyp

pee E

E::

Electrically-activated vacuum systems. The vehicle

must have a vacuum actuator in each door. Make sure that lock-

note: Always retest the wires in the kick panel to be sure
they function the same way as the wires on the switch.

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