2002 ford escape liftgate wont lock/unlock

Lock an unlock by them selves ? Door locks are computer controlled ,by the BCM - body control module .
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Power Door Locks Circuit Description
The power door lock system includes the following components:
• The door lock actuators
• A door lock relay
• An door unlock relay
• A driver door unlock relay
• The door lock and side window switches
• The body control module (BCM)
• The endgate lock cylinder switch /liftgate lock cylinder switch (utility)
• The keyless entry, if equipped
The door lock and liftgate mechanisms may be controlled by the following switches:
• The door lock and side window switches
• The BCM
• The endgate lock cylinder switch / liftgate lock cylinder switch (utility)
• The keyless entry, if equipped
The following locking functions are included on the vehicle:
• All the doors unlock -- All the doors will unlock, including the endgate/liftgate, when any power door unlock switch is detected. The passenger doors lock directly by pressing the lock switches. The driver door unlocks by the BCM using a driver door unlock relay.
• All the doors lock -- All the doors will lock, including the endgate/liftgate, when any power door lock switch is activated. All the lock actuators will activate directly from the power door lock switch (external to the BCM).
• The end/lift gate lock switch -- All the doors will lock or unlock from the end/lift gate lock switch.
• The lockout prevention -- This function will prevent the doors from automatically locking if the keys have been left in the ignition and the power door lock switch is operated.
The motor is protected by a built-in electronic circuit breaker (ECB). If the motor is overloaded or voltage is applied for an excessive amount of time, the ECB internal resistance increases, essentially creating an open circuit. The resistance returns to normal only after voltage is removed from the circuit, thereby restoring circuit continuity.

You have a bad switch input to the BCM !
Door lock acting up 2005 Chevy Malibu fix it here
Door Locks Go Crazy 2

To unlock the liftgate, press the unlock button on the Remote Keyless Entry (RKE) transmitter twice or use the power door lock switch.
To lock the liftgate, press the lock button on the RKE transmitter or use the power door lock switch. The liftgate does not have a key lock cylinder.
To open the liftgate, pull up on the handle located in the center of the liftgate.
When closing the liftgate, use the molded handles to pull the liftgate down. Push the liftgate closed until it latches.

Keyless Entry Keypad FAQ Ford Explorer
The keypad can be operated with the factory set 5-digit entry code
You can use the keyless entry keypad to

• Lock or unlock the doors without using a key.
• Open the liftgate window.
• Activate or deactivate the autolock feature.

Where the code can be found

• This code is located on the owner's wallet card in the glove box
• Is available from your authorized dealer via scan code
• Is marked on the computer module

Computer Module location

• 1995 thru 2001 is located in the jack storage compartment in the rear of your Explorer. First remove the panel to the jack storage compartment. Towards the front of this area you should see a metal box this is your auto-lock module(way up front next to your rear left passenger seat). On the back side of this is your 5 digit code factory preset code. It is hard to get to. To see it you will have to loosen, pull, use a flashlight or a mirror but it can be done.

• 2002 thru 2007 is in the right panel behind the middle row window. It is below the seat belt mechanism. You have to pull out the top plastic panel off, then loosen the lower panel to be able to see the face of the computer module. The code is on a sticker on the face of the module.

Programming a personal entry code The factory set code cannot be reprogrammed but you can create your own 5�digit personal entry code. When pressing the controls on the keypad, press the middle of the controls to ensure a good activation.
Up to three personal entry codes may be programmed to the vehicle. To create your own personal entry code:

• 1. Enter the factory set code.
• 2. Within five seconds press the 1 � 2 on the keypad.
• 3. Enter your personal 5-digit code. Each number must be entered within five seconds of each other.
• 4. Press 1 � 2, 3 � 4 or 5 � 6 to indicate which of the three personal entry code positions you wish to use.
• 5. The doors will again lock then unlock to confirm that your personal key code has been programmed to the module.

Tips:

• Do not set a code that uses five of the same number.
• Do not use five numbers in sequential order.
• The factory set code will work even if you have set your own personal code.
• If you program a code to a position that already contains a set code, the previously-set code will be erased.

Erasing personal code

• 1. Enter the factory set 5�digit code.
• 2. Within five seconds, press the 1 � 2 on the keypad and release.
• 3. Press and hold the 1 � 2 for two seconds. This must be done within five seconds of completing Step 2.

All personal codes are now erased and only the factory set 5�digit code will work.

Anti-scan feature If the wrong code has been entered 7 times (35 consecutive button presses), the keypad will go into an anti-scan mode. This mode disables the keypad for one minute and the keypad lamp will flash.

The anti-scan feature will turn off after

• One minute of keypad inactivity.
• Pressing the UNLOCK control on the remote entry transmitter.
• The ignition is turned to the 3 (ON) position.

Unlocking and locking the doors, liftgate and liftgate window using keyless entry

• To unlock the driver�s door, enter the factory set 5-digit code or one of the vehicle�s personal codes.
• Each number must be pressed within five seconds of each other. The interior lamps will illuminate.
• To unlock all doors and liftgate, press the 3 � 4 control within five seconds.
• To open the liftgate window, press the 5 � 6 control within five seconds.
• To lock all doors, liftgate and liftgate window, press the 7 � 8 and the 9 � 0 at the same time.

• Note: The driver�s door must be closed. You do not need to enter the keypad code first.

Deactivating/activating autolock

• Your vehicle comes with the autolock feature enabled.

Note: The autolock feature can be activated/deactivated independently of the autounlock feature.
Before following the activation or deactivation procedures, make sure that the anti-theft system is not armed, ignition is in the 1 (OFF/LOCK)position, and all vehicle doors, liftgate and liftgate window are closed.
*Keyless entry key pad procedure

• 1. Turn the ignition to the 1 (OFF/LOCK) position.
• 2. Close all doors, the liftgate and liftgate window.
• 3. Enter 5�digit entry code
• 4. Press and hold the 3 � 4. While holding the 3 � 4 press the 7 � 8.
• 5. Release the 7 � 8.
• 6. Release the 3 � 4.

The user should receive a horn chirp to indicate the system has been disabled or a chirp followed by a honk to indicate the system has been enabled.
Autounlock The autounlock feature will unlock all the doors when: � the ignition is in the 3 (ON) position, all the doors are closed, and the vehicle has been in motion at a speed greater than 12 mph (20 km/h); � the vehicle has then come to a stop and the ignition is turned to the 1 (OFF/LOCK) or 2 (ACC) position; and � the driver door is opened within 10 minutes of the ignition being transitioned to the 1 (OFF/LOCK) or 2 (ACC) position.
Note: The doors will not autounlock if the vehicle has been electronically locked before the driver door is opened.

Deactivating/activating autounlock - Keyless entry key pad procedure Your vehicle comes with the autounlock feature activated.

• 1. Turn the ignition to the 1 (OFF/LOCK) position.
• 2. Close all doors, the liftgate and liftgate window.
• 3. Enter 5�digit entry code
• 4. Press and hold the 3 � 4. While holding the 3 � 4 press the 7 � 8 twice.
• 5. Release the 7 � 8.
• 6. Release the 3 � 4.

The user should receive a horn chirp to indicate the system has been disabled or a chirp followed by a honk to indicate the system has been enabled.
The keyless entry touch pad can use two codes. The factory code and one
personal code .
To program your own personal code, select a 5 digit code that doesn't use 5 digits in
sequence or the same button 5 times.
Enter your factory code
Within 5 seconds press the 1/2 button
Within 5 seconds of pressing the 1/2 button, enter your 5 digit personal code,
pressing each digit within 5 seconds of the previous digit.
You can now use either code to operate the keypad

Setting FOB to work with your vehicle

1. Sit in car, doors closed. Electronically unlock all doors using the power door unlock switch on the driver's door.
2. Insert key into ignition switch and turn from OFF to ON 8 times within 10 seconds with the 8th time ending in the ON position. (5 times on some models)
3. The doors should lock and unlock by themselves to signal programming mode.
4. Using your remote: lock the doors.

The rear door lock actuator needs to be replaced. If you have the dealer do it you will pay $300.00+. If you do it, you can do it in an hour for about $20.00. Just buy a universal actuator kit that looks similar to the one already in there from the factory. Do A Google Search on "Mazda Tribute Rear Door Lock Actuator" to find sources for them.

This is a VERY common problem on Ford Escapes and Mazda Tributes, all years. I am surprised there has not been a recall on this.

The liftgate consists of the following components:

• liftgate door lock actuator
• liftgate lock cylinder (if equipped)
• liftgate window glass
• liftgate window latch/ajar switch
• liftgate window glass release handle
• liftgate latch remote control which consists of the following component:
  • liftgate release handle
• liftgate latch, which consist of the following component:
  • liftgate latch door ajar switch

Liftgate Latch Actuator Removal and Installation

1. Remove the liftgate latch remote control. For additional information, refer to Liftgate Latch Remote Control in this section.

SECTION 501-14: Handles, Locks, Latches and Entry Systems 2001 Escape Workshop Manual
REMOVAL AND INSTALLATION Liftgate Latch Removal and Installation

1. Remove the liftgate trim panel.

1. Disconnect the liftgate ajar switch electrical connector.

1. Disconnect the liftgate latch actuating rod.
   1. Open the clip.
   1. Disconnect the actuating rod.

1. Remove and discard the liftgate latch bolts.

1. Remove the liftgate latch.

1. NOTE: Make sure the liftgate latch release rod is not preloading the latch. It should be clipped in a relaxed state with no slack.
   NOTE: Position the liftgate latch release rod by pushing outboard to remove the slack.
   

1. Remove the screws and the liftgate latch actuator

Deactivating/activating autolock
There are 3 methods to enable/disable this feature. One through your
dealer, the second with a power door unlock/lock sequence and the third
with the keypad.
Before following the activation or deactivation procedures, make sure
that the anti-theft system is not armed, ignition is off, and all vehicle
doors, liftgate and liftgate window are closed.
Controls and features
Power door unlock/lock
procedure
You must complete steps 1-5 within
30 seconds or the procedure will
have to be repeated. If the
procedure needs to be repeated,
you must wait 30 seconds.
1. Turn the ignition key to ON.
2. Press the power door unlock control three times.
3. Turn the ignition key from ON to OFF.
4. Press the power door unlock control three times.
5. Turn the ignition back to ON. The horn will chirp.
6. Press the unlock control, then press the lock control. The horn will
chirp once if autolock was deactivated or twice (one short and one long
chirp) if autolock was activated.
7. Turn the ignition to OFF. The horn will chirp once to confirm the
procedure is complete.
Keyless entry key pad procedure
1. Enter 5 digit entry code
2. Press and hold 7/8 control
3. Press and release 3/4 control
4. Release 7/8 control.
The user should receive a horn
chirp to indicate the system has
been disabled or a chirp followed by
a honk to indicate the system has
been enabled.
Smart unlock
This feature prevents the driver’s door from locking while the key is in
the ignition. This feature will unlock only the driver’s door if the key is in
the ignition cylinder, the driver’s door is ajar and all doors are locked
using the interior trim switch. If these conditions are met, the entire
vehicle will lock and the driver’s door will unlock within 1 second.
Controls and features
127

the unlock or popper for the door needs to be replaced. the door should work with a key.

the electronic sensor could be bad or the lock is physically jammed.

Probably a issue with your actuator... there is a recall due to the "latching system does not meet the inertia load requirement" might want to check with the dealership to see if your vehicle is with this group, hope this helps :)

Recall 04V602000: Liftgate Latch Release Rod Replacement

Certain 2004-2005 sport utility vehicles and certain 2001-2003 sport utiity vehicles having rear liftgate components serviced with 2004 equivalent components fail to comply with the requirements of Federal Motor Vehicle Safety Standard No. 206, "Door Locks and Door Retention Components." The rear liftgate latching system does not meet the inertia load requirement in one direction.

Using a multimeter, check for voltage at the lock/unlock solenoid. Disconnect the connector and probe the unlock side with the other lead on a good ground. Hit the unlock twice and see if you get voltage. If yes, the solenoid may be defective or if not, you could possibly have a bad relay. Even though you can hear the relay, that doesn't necessarily mean it's completing the circuit. My car did the same thing and I ended up replacing the relay.
The lock side check would be the same.

Hope this helps!