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KEYLESS ENTRY SYSTEMSKEYLESS ENTRY SYSTEMS
CHAPTER 14
PAGES 513C - 518C
PAGES 544L - 549L
MAIN COMPONENTS
CONTROL MODULE CODED BUTTON KEY PAD DOOR LOCK MOTORS
SYSTEM FUNCTIONS
UNLOCKS ALL DOORS WHEN 3-4 BUTTON IS PRESSSED WITHIN 5 SECONDS AFTER CODE ENTERED
RELEASES TRUNK LID ACTIVATES ILLUMINATED ENTRY OPERATES IN CONJUNCTION WITH
AUTOMATIC LOCKS SYSTEM
KEY MODULE
Controls all functions for Keyless and Autolock systems
Located in Trunk on Fords
On newer cars, built into BCM
Code usually on module itself.
KEYPAD
FIVE NORMALLY OPEN SINGLE POLE, SINGLE THROW SWITCHES
EACH PAD REPRESENTS TWO NUMBERS LOCATED ON DRIVER’S DOOR PROVIDES INPUT TO CONTROL MODULE
CLASS 513
LOCK MOTOR
USES EITHER SOLENOID OR PERMANENT MAGNET REVERSIBLE MOTOR
MODULE CONTROLS PM LOCK MOTORS BY REVERSING CURRENT
CLASS 363
REMOTE OPERATION
TRANSMITTER RECEIVER BUILT
INTO MODULE ANTENNA SOMETIMES USED
WITH ALARM SYSTEM
LAB 549
SYSTEM DIAGNOSIS
INSURE WHAT SYSTEM YOU HAVE CHECK BASIC LOCK SYSTEM FIRST ROLL DOWN WINDOWS OR KEYS IN
POCKET PERFORM FACTORY FUNCTION
TEST HIDDEN CODE SOMETIMES ON
CONTROLLER MODULELAB 548
FUNCTION TEST
Unlock and lock doors using lock switches Illuminate Keypad Lock doors using keypad Unlock Driver’s door using permanent Code Unlock passenger door’s using 3/4 key Unlock luggage using 5/6 key Check for Auto Lock function (Through reverse gear) Open and close driver’s door to check Autolock Open driver’s door, key on, trans in drive, turn off
courtesy lights with door switch using left foot
Cont’d on next slide
FUNCTION TEST (CONT’D)
Key off, trans in park, get out of car, close door Press Keypad to turn on illuminated entry.
While illuminated entry is on, press 7/8 and 9/0 simultaneously within 5 seconds of turning on the illuminated Entry system
Key off, transmission in Park, door closed, lift handle to open door, within 25 seconds, get inside car and turn ignition switch on
Enter Permanent code, within 5 seconds, push 1/2 (this tells module to accept a alternate code)
Unlock all doors using alternate code Disable alternate code. (Follow procedure)
CHECK INPUTS AND OUTPUTS
LAB 547
Door Handles Driver’s seat sensor Transmission back up
light switch Ignition Switch Electric door lock/unlock
switches Keypad Courtesy Light Switch Door ajar switch
Keypad illumination Door lock actuating
solenoid/motor Trunk lid release
solenoid Interior courtesy
lights
INPUTS OUTPUTS
SYSTEM DIAGRAM
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