2003 FORD MUSTANG lock

REMOVAL AND INSTALLATION
Lock Cylinder —
Door
Removal 1. NOTE: Individual lock cylinders are repaired by discarding the inoperative cylinder and building
a new lock cylinder using the appropriate lock repair package. The lock repair package includes
a detailed instruction sheet to build the new lock cylinder to the current key code of the vehicle.
Remove the door trim panel (23942). For additional information, refer to Section 501 - 05 .
2. Using a screwdriver, release the lock cylinder actuating rod.
3. Remove the door lock cylinder retainer.
4. Remove the door lock cylinder (21990).
5. If necessary, transfer the lock cylinder arm to the new door lock cylinder (21990).
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REMOVAL AND INSTALLATION
Lock Cylinder —
Luggage Compartment Lid
Removal 1. NOTE: Individual lock cylinders are repaired by discarding the inoperative cylinder and building
a new lock cylinder using the appropriate lock repair package. The lock repair package includes
a detailed instruction sheet to build the new lock cylinder to the current key code of the vehicle.
Disconnect the luggage compartment lid lock actuator (432A38) cable.
2. Remove the luggage compartment lid lock cylinder (43262). 1. Remove the rivet.
2. Rotate the lock cylinder counterclockwise to remove.
Installation 1. To install, reverse the removal procedure.
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REMOVAL AND INSTALLATION
Push Button Rod —
Door
Removal 1. Remove the door trim panel (23942). For additional information, refer to Section 501 - 05 .
2. Release the push button rod by opening the clip.
Installation 1. To install, reverse the removal procedure.
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REMOVAL AND INSTALLATION
Actuator —
Door Lock
Removal 1. Remove the door trim panel (23942). For additional information, refer to Section 501 - 05 .
2. Remove the door latch (21812). For additional information, refer to Latch — Door .
3. Remove the door ajar switch. zRelease the locking tab.
4. Remove the adjunct actuator.
Installation 1. To install, reverse the removal procedure.
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REMOVAL AND INSTALLATION
Switch —
Door Ajar Switch
Removal 1. Remove the door trim panel (23942). For additional information, refer to Section 501 - 05 .
2. Remove the door latch (21812). For additional information, refer to Latch — Door .
3. Remove the door ajar switch. zRelease the locking tab.
Installation 1. To install, reverse the removal procedure.
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REMOVAL AND INSTALLATION
Switch —
Door Lock
Removal
1. CAUTION: Place a rag between the window regulator switch plate and the door trim
panel to avoid damaging the door trim panel.
Position the window regulator switch plate (14524) aside. 1. Pull at service notch.
2. Lift to release the clip at the rear edge.
2. Remove the screws and the door lock switch (14017).
Installation 1. To install, reverse the removal procedure.
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DESCRIPTION AND OPERATION
Keyless Entry
The electronic door lock system has two main components:
zgeneric electronic module (GEM)(14B204)
z keyless entry remote transmitter (15K601)
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DIAGNOSIS AND TESTING
Keyless Entry
Refer to Wiring Diagrams Cell
59 , Generic Electronic Module for schematic and connector
information.
Refer to Wiring Diagrams Cell 111 , Remote Keyless Entry (RKE) for schematic and connector
information.
Principles of Operation
NOTE: Battery power and ground must be remove before disconnecting the GEM connectors to avoid
setting false codes.
Power Locks Operation
The power locks feature allows the customer to lock and unlock the doors via momentary switches
located on the driver and passenger door. When the GEM detects a momentary press of the driver or
passenger lock button, the GEM will supply power to the driver or passenger lock actuators for
approximately 250 ms from relays internal to the GEM. When the GEM detects a momentary press of
the driver or passenger unlock button, the GEM will supply power to the driver or passenger unlock
actuators for approximately 250 ms from relays internal to the GEM.
Remote Keyless Entry Door Locks Operation
The remote entry feature allows the customer to unlock the driver door, unlock all doors, and lock all
doors using a valid remote transmitter as long as the ignition switch is not in RUN or START. The
driver door is unlocked whenever the GEM detects a valid remote transmitter unlock transmission. All
the doors are unlocked when the GEM detects a second valid remote transmitter unlock transmission
within three seconds of the first transmission. All the doors are locked when the GEM detects a valid
remote transmitter lock transmission. If the GEM detects a second valid remote transmitter lock
transmission within three seconds of the first transmission, the doors will lock again, the horn will
sound for 20 ms and the parking lamps will flash for 200 ms to indicate the doors are locked. If the
GEM detects the driver or passenger door is ajar during the second lock transmission, the doors are
locked again and the horn is sounded twice. If the GEM detects a valid remote transmitter lock
transmission within three seconds of detecting a valid remote transmitter unlock transmission, the SECTION 501-
14B: Keyless Entry/Computer Operated Locks 2003 Mustang Workshop Manual Special Tool(s)
73 Digital Multimeter or
equivalent
105-
R0051 Worldwide Diagnostic System
(WDS)
418-
F224
New Generation STAR (NGS)
Tester
418- F052, or equivalent scan
tool Klj . 1 ba
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