© 2001 Directed Electronics, Inc. Vista, CA
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This system usually requires a negative pulse to unlock, and cutting the wire to lock the door. (In some vehicles,
these wires are reversed.) Type F door locks are used in the late-model Nissan Sentra, some Nissan 240SX, and
Nissan 300ZX 1992 and later. They are also used in some Mazda MPV's.
NOTE:
The violet jumper between the #87 lock terminal and the #87 unlock terminal must be cut.
IMPORTANT!
The H2/A and H2/B wires are not required for wiring the door locks. For detailed
wiring instructions for these two wires, refer to the beginning of the Door Lock Harness (H2) Wire
Connection Guide section. Depending on the type of door lock system, there may be additional H2
harness wires that are not used for wiring the door locks.
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.
SINGLE-RESISTOR TYPE:
If one resistor is used in the door lock switch/key cylinder, the wire will pulse (+)12V
in one direction and less than (+)12V when operated in the opposite direction.
TWO-RESISTOR TYPE:
If two resistors are used in the factory door lock switch/key cylinder, the switch/key cylin-
der will read less than (+)12V in both directions.
type G: positive (+) multiplex
type F: one-wire system - cut to lock, ground to unlock
