Keyless Entry Keypad
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
The keyless entry keypad is hardwired to the SJB . The SJB interprets the inputs from the keyless entry keypad and then controls the associated operation. The keyless entry keypad is illuminated for 5 seconds when any button is pressed. The SJB requests the illuminated entry feature to turn the interior lamps on when a valid entry code is received. If a lock all doors code is entered, the illuminated entry feature turns off.
NOTE:
The keyless entry keypad does not lock the doors if the driver door is ajar.
The keyless entry keypad supplies a signal to the SJB when the buttons are pressed. The SJB then supplies voltage to the appropriate door lock actuator(s) to lock or unlock the doors or release the liftgate window.