2001 Mercury Sable Keyless Entry-Fuse

All interior light's not working ? Instrument cluster , dome light's , switch light , instrument panel , map ,reading lamps etc...... Probably not a fuse problem , more then likely the LCM - lighting control module . Do you know anything about automotive electronics ? Control modules ? DTC'S - diagnostic trouble code's ?
Illuminated Entry The illuminated entry system:

• is controlled by the lighting control module.
• provides courtesy lighting upon entry to and exit from the vehicle.

The keyless entry keypad illuminates when any keyless entry keypad button is pressed, regardless of the ignition switch position. The keyless entry keypad remains illuminated for five seconds after a handle is raised or for five seconds following the last keypad button pressed. Courtesy lamps will be illuminated for 25 (±1) seconds which includes a theater lighting ramp-up time (two seconds). This time interval does not include the theater lighting ramp-down time. Courtesy lamps will be turned off before the 25 (±1)-second timeout if the ignition switch is turned to the RUN or ACC position. NOTE: When the illuminated entry feature is activated by using the keyless entry remote transmitter, the keyless entry keypad does NOT illuminate. The illuminated entry system has the following additions to accommodate the keyless entry system:

• Pressing any button on the keyless entry keypad or pressing the UNLOCK button on the keyless entry remote transmitter will activate the illuminated entry system (with theater ramp-up). When the driver door module detects a button press, it sends a signal on the J1850 communication network activating the courtesy lamps. The keypad will remain illuminated for five seconds following the illuminated entry ON signal transition or for five seconds following the last keypad button press.
• If the keyless entry keypad 7/8 and 9/0 buttons are pressed concurrently (to lock the doors) or the LOCK button on the keyless entry remote transmitter is pressed:
  • the lighting control module will turn off the lamps by sensing the all doors lock signal.
  • the driver door module will also turn OFF the keyless entry keypad illumination when the last two keyless entry keypad buttons are pressed concurrently.
  • Lamps, Courtesy Courtesy lamps can be turned on by using the panel dim switch located on the headlamp switch assembly or by opening any door. A theater lighting feature gradually increases or decreases the light intensity when switched by opening or closing a door. Courtesy lamps (controlled by the lighting control module) are activated by using the dome lamp switch (instant ON/OFF response) or when a door is ajar. The following lamps illuminate for courtesy lighting:
    • instrument panel courtesy lamps
    • front map lamps
    • rear reading lamps
    • Inspection and Verification
      
      1. Verify the customer's concern by operating the courtesy and demand lamps to duplicate the condition.
         
      1. Inspect to determine if one of the following electrical concerns apply:
         
         
         VISUAL INSPECTION CHART Electrical
         • Damaged lamps
         • Damaged switches
         • Stuck switches
         • Open fuse junction panel Fuses:
           • 1 (10A)
           • 4 (10 A)
           • 5 (10 A)
           • 7 (15A)
           • 13 (15A)
           • 19 (10A)
           • 25 (10A)
           • 31 (15A)
           • 39 (10A)
         • Open power distribution box Fuse 9 (40A)
         • Open bulbs
         • Loose connectors
         • Corroded connectors
      1. If inspection reveals an obvious concern that is readily serviced, correct the concern before continuing with Inspection and Verification.
         
      1. If the concern remains after the inspection, connect the Rotunda New Generation Star (NGS) Tester 007-00500 or equivalent to the data link connector (DLC) located beneath the instrument panel to perform Data Link Diagnostics Test. If the NGS responds with NO RESPONSE/NOT EQUIPPED for the lighting control module, go to Pinpoint Test AA . If the NGS responds with NO RESPONSE/NOT EQUIPPED for the driver door module, go to Pinpoint Test AB . If the Data Link Diagnostic test is passed for the lighting control module and driver door module, retrieve continuous DTCs and execute self test diagnostics for the suspect module(s).
         
      1. If self test is passed and no DTCs are retrieved, GO to the Symptom Chart to continue diagnostics.
         
      1. If DTCs are retrieved for the lighting control module, go to the Lighting Control Module (LCM) Diagnostic Trouble Code (DTC) Index to continue diagnosis. If DTCs are retrieved for the driver door module, go to the Driver Door Module (DDM) Diagnostic Trouble Code (DTC) Index to continue diagnostics.
         
      1. If the lighting control module cannot be accessed by the NGS tester, go to Pinpoint Test AA . If the driver door module cannot be accessed by the NGS tester, go to Pinpoint Test AB .
         
      Rotunda Service Bay Diagnostic System (SBDS®) 001-00001 may also be used to diagnose this system.
      

Dealership may be able to look up the factory code by using the vehicle's VIN number, or possibly reset it with their machine.

check the auto booklet if you do not have one go on line and key inn ford windstar keyless entry codes The Ford dealer ship can assist also.

look for the permanent code on the plastic card in the owner manual packet. Or, pay dealer to extract code from computer.

Keyless Entry Keypad Code Programming NOTE: The system only allows one code to be programmed.

1. Enter the permanent factory keyless entry keypad code.

1. Press the 1/2 button within five seconds to activate the programming mode. Holding the 1/2 button for more than two seconds after activation will erase the stored customer code . The door locks will lock, then unlock, confirming the code is erased. The existing code will not need to be erased to program new a code.

1. Within five seconds, enter the new five-digit keyless entry keypad code. The door locks will lock and unlock to confirm the new code is programmed.

The driver door module (DDM) is connected on the standard corporate protocol (SCP) communication network. The DDM controls many functions including power windows, power door locks and remote keyless entry. The DDM also communicates with the driver seat module (DSM) to control the power mirror and seat memory functions.
Do you know anything about automotive electronic control modules ?
The driver door module (DDM) receives inputs from the digital transmission range (DTR) sensor, ignition switch, seat switch, window/door lock switches, lighting control module (LCM), keyless entry keypad switch and remote transmitter. The DDM outputs consists of keyless entry keypad switch illumination, power door lock actuators, luggage compartment release solenoid, horn relay, and lighting control module (LCM).
Best thing to do would be to have a factory scan tool hooked up to check for DTC'S diagnostic trouble codes . That should be the first step if it's not programming the code.

• The doors do not lock/unlock using the keyless entry keypad

• Keypad.
• Circuitry.
• Driver door module (DDM).

• GO to Pinpoint Test L .

PINPOINT TEST L: THE DOORS DO NOT LOCK/UNLOCK USING THE KEYLESS ENTRY KEYPAD CONDITIONS DETAILS/RESULTS/ACTIONS L1 RETRIEVE THE RECORDED RESULTS FROM BOTH CONTINUOUS AND ON DEMAND SELF TESTS Use the recorded DDM DTCs from the Continuous and On Demand self tests.

• Are any DTCs recorded?

Yes For DTC B1525, GO to L3 .

For all other DDM DTCs, REFER to the DDM Diagnostic Trouble Code (DTC) Index.

No If the door locks are inoperative, GO to L2 .

If the keypad illumination does not operate, GO to L10 .

If the keypad illumination is on continuously, GO to L14 .
L2 CHECK THE DOOR LOCK OPERATION Check the door lock operation by depressing a door lock switch.

• Do the door locks operate?

Yes GO to L3 .

No GO to Pinpoint Test E . L3 MONITOR THE DDM PID KEY_PAD
Scan tool
Monitor the DDM PID KEY_PAD.

• Are any of the keyless entry keypad switch numbers present?

Yes GO to L4 .

No GO to L5 . L4 CHECK THE KEYLESS ENTRY KEYPAD SWITCH
Keyless Entry Keypad Switch C525
Monitor the DDM PID KEY_PAD.

• Are any of the keyless entry keypad switch numbers present?

Yes If 1/2, REPAIR Circuit 78 (LB/YE). TEST the system for normal operation.
If 3/4, REPAIR Circuit 79 (LG/RD). TEST the system for normal operation.
If 5/6, REPAIR Circuit 121 (YE/BK). TEST the system for normal operation.
If 7/8, REPAIR Circuit 122 (YE). TEST the system for normal operation.
If 9/0, REPAIR Circuit 123 (RD). TEST the system for normal operation.

No INSTALL a new keyless entry keypad switch; for additional information, REFER to Keypad-Keyless Entry . L5 CHECK THE KEYLESS ENTRY KEYPAD INPUT WITH THE KEYLESS ENTRY KEYPAD SWITCH Monitor the DDM PID KEY_PAD, while depressing all the keyless entry keypad switches one at a time.

• Are all the keyless entry keypad switches operating correctly?

Yes GO to L9 .

No GO to L6 . L6 CHECK CIRCUIT 797 (LG/VT) FOR VOLTAGE
Keyless Entry Keypad C525
Measure the voltage between keyless entry keypad C525-7, Circuit 797 (LG/VT), and ground; and between keyless entry keypad C525-8, Circuit 797 (LG/VT), and ground.

• Are the voltages greater than 10 volts?

Yes GO to L7 .

No REPAIR Circuit 797 (LG/VT). TEST the system for normal operation. L7 CHECK THE KEYLESS ENTRY KEYPAD SWITCH INPUT While monitoring the DDM PID KEY_PAD, momentarily connect a fused (7.5A) jumper wire between positive battery post and keyless entry keypad switch C525 as follows:

Keypad Button Keyless Keypad Switch C525 Circuit 1/2 Pin 3 78 (LB/YE) 3/4 Pin 4 79 (LG/RD) 5/6 Pin 5 121 (YE/BK) 7/8 Pin 6 122 (YE) 9/0 Pin 1 123 (RD)

• Are all the keyless entry keypad switch inputs operating correctly?

Yes INSTALL a new keyless entry keypad switch; for additional information, REFER to Keypad-Keyless Entry .

No GO to L8 . L8 CHECK THE KEYLESS ENTRY KEYPAD SWITCH CIRCUITRY FOR AN OPEN
DDM
Measure the resistance between keyless entry keypad switch C525 and DDM as follows:

Keyless Keypad Switch C525 DDM Circuit Pin 3 C521 Pin 8 78 (LB/YE) Pin 4 C521 Pin 13 79 (LG/RD) Pin 5 C521 Pin 16 121 (YE/BK) Pin 6 C520 Pin 24 122 (YE) Pin 1 C520 Pin 25 123 (RD)

• Is the resistance less than 5 ohms?

Yes INSTALL a new DDM; for additional information, REFER to Section 419-10 . TEST the system for normal operation.

No REPAIR the circuit in question. TEST the system for normal operation. L9 CHECK THE KEYLESS ENTRY KEYPAD BACKLIGHT Depress a key on the keyless entry keypad.

• Does the keypad illumination operate correctly?

Yes INSTALL a new DDM. For additional information, REFER to Section 419-10 . TEST the system for normal operation.

No If the keypad illumination does not operate, GO to L10 .

If the keypad illumination is on continuously, GO to L14 . L10 CHECK THE KEYPAD - DDM ACTIVE COMMAND KEYPAD BACKLIGHTING LIGHT ON AND OFF Trigger the DDM active command KEYPAD BACKLIGHTING LIGHT ON and OFF.

• Does the keypad illumination turn off and on?

Yes INSTALL a new DDM. For additional information, REFER to Section 419-10 . TEST the system for normal operation.

No GO to L11 . L11 CHECK DDM GROUND - JUMPER CIRCUIT 66 (LB) TO GROUND
DDM 522
Connect a fused (7.5A) jumper wire between DDM C522-4, circuit 66 (LB), and ground.

• Does the keypad illuminate?

Yes INSTALL a new DDM; for additional information, REFER to Section 419-10 . TEST the system for normal operation.

No GO to L12 . L12 CHECK CIRCUIT 51 (BK/W) FOR OPEN
Keyless Entry Keypad C525
Measure the voltage between keyless entry keypad C525-7, circuit 797 (LG/VT), and ground; and between keyless entry keypad C525-8, circuit 797 (LG/VT), and ground.

• Are the voltages greater than 10 volts?

Yes GO to L13 .

No REPAIR circuit 797 (LG/VT). TEST the system for normal operation. L13 CHECK CIRCUIT 66 (LB) FOR OPEN Measure the resistance between keyless entry keypad C525-2, Circuit 66 (LB), and DDM C522-4, Circuit 66, (LB).

• Is the resistance less than 5 ohms?

Yes INSTALL a new keyless entry keypad switch; for additional information, REFER to Keypad-Keyless Entry .

No REPAIR Circuit 66 (LB). TEST the system for normal operation. L14 CHECK THE KEYPAD ILLUMINATION - DDM DISCONNECTED
DDM C522

• Does the keypad illumination turn off?

Yes INSTALL a new DDM; for additional information, REFER to Section 419-10 . TEST the system for normal operation.

No GO to L15 . L15 CHECK KEYLESS ENTRY KEYPAD FOR SHORT TO GROUND
Keyless Entry Keypad C525

• Does the keypad illumination turn off?

Yes GO to L16 .

No INSTALL a new keyless entry keypad switch. For additional information, REFER to Keypad-Keyless Entry . TEST the system for normal operation. L16 CHECK CIRCUIT 66 (LB) FOR SHORT TO GROUND Measure resistance between DDM C522-4, circuit 66 (LB), and ground.

• Is resistance greater than 10,000 ohms?

Yes System OK. CLARIFY the concern with the customer.

No REPAIR circuit 66 (LB). TEST the system for normal operation.

Did you try a new battery in keyless entry?
if not that may be your problem.
hoped this helped.

the numbers are on the keyless module in the trunk, it is a paper tag

does the key pad light when you press a button at night? If yes, the fuse is ok.
Do you have the plastic card with the permanent code in your owner manual packet? If yes, tryit.
report back.

Keyless Entry The keyless entry keypad is hardwired to the GEM. The GEM interprets the inputs from the keyless entry keypad and then controls the associated operation. The keyless entry keypad will be illuminated for five seconds when any button is pressed. Additionally, it will request the illuminated entry feature to turn the courtesy lamps on. If a lock all doors code is entered, the illumination will turn off, as well as request the illuminated entry feature to turn off the courtesy lamps. When pressed, the keyless entry keypad supplies the ground signal to the GEM or the GEM receives a signal from the keyless entry remote transmitter. Then the GEM outputs a ground signal to the appropriate lock or unlock relay which supplies the power to the actuator to lock or unlocks all doors, including the luggage compartment. The keyless entry remote transmitter also unlocks the liftgate or activates the panic alarm by sending a signal to the GEM.
--------------------------------------------------------------- Visual Inspection Chart Mechanical Electrical

• Keyless entry keypad
• Keyless entry remote transmitter

• Central junction box (CJB) Fuse F222 (20A)
• Circuitry
• Generic electronic module (GEM)

------------------------------------------------------------------------

• No communication with generic electronic module (GEM)

• Generic electronic module.
• Circuitry.

• REFER to Section 419-10 .

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To activate the autolock feature, use the following steps:

1. Enter the five-digit permanent entry code into keyless entry keypad (14A626) .

1. Press and hold the 7/8 button on the keyless entry keypad within five seconds of entering the code.

1. Press and then release the 3/4 button within five seconds of pressing and holding the 7/8 button.

1. Release the 7/8 button on keyless entry keypad within five seconds of releasing the 3/4 button. To deactivate the autolock, repeat the above sequence.
   

Doubt its a fuse. Most likely the key pad has failed and needs to be replaced. On the bright side this is a good problem to have and you have a very reliable car.