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type F: one-wire system
Type F door locks usually require a negative pulse to unlock and cutting the wire to
lock the door. In some vehicles, these functions are reversed. Type F door locks are
found in late-model Nissan Sentras, some Nissan 240SX, and Nissan 300ZX 1992-
up. They are also found in some Mazda MPVs, some Mitsubishis, and Lotus.
One relay (optional) is used to interface to this type of system as follows:
