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Car was locked with key fob button. Now will not unlock with either of the key fob buttons or the entry code on the door or the key itself. We can not get inside the car. The trunk will not open with the key fob button but will unlock with the key itself.
i cannot program the key fob for the grand marquis i have several programming instructions from different companies. inside the door says it is 1997 the manual is for 1998 and the have tried instructions for 1999 marquis.
To get inside the car .... Use the key in the lock cylinder, unlock the drivers door to get inside. You shouldn't have to reprogram the fob unless it or the keyless module was changed. There may be a blown fuse that supplies the keyless control module (check the owners manual for location). or wires that lead into the Drivers door may be damaged ... The keyless module is located inside the drivers door at the bottom behind the door panel ... do the unlock/lock and trunk release switches on the inside of the drivers door operate the locks and or trunk release? If so it is not the fuse ... and not the wires to it ... And it could be your BCM body control module, located in the dash board to right of your gas petal. Because the number entry keypad (code for that is on the inside of the right passenger trunk bracket arm) also doesn't work I assume it's not the key fobs themselves. Your 98 manual is correct for your car.
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Remove and it will make all power locks and hatch inoperable (electrically) and you will be required to manually lock/unlock all doors and use a key to unlock the drivers door to gain entry into a locked vehicle. The hatch will not operate as it is not mechanical release as are the doors.
If you want only to disable the key pad, you will need to disconnect the pad from the smart junction box... not a task for the average owner. It may also cause a CEL/MIL indication.
If you want to test removing fuse 20, roll down the windows prior so you have access if key entry somehow fails.
You could wire a switch (30 Amp) into the fuse 20 circuit and have a selectable on/off so you have hatch release or all functions when wanted.
1. Get in your vehicle.
2. Close the door.
3. Put key in ignition
4. Do not turn on the ignition yet.
5. Hold down on the unlock button on the door panel. Do not let up.
6. Turn the key to ON, OFF, ON, OFF (while still holding the unlock button on the door panel).
7. Release the unlock button.
8. The door locks should cycle, indicating that you did everything correctly.
9. Have all your remote entry fobs available. Hold down on both the lock and unlock buttons until the door locks cycle. Do the same on all key fobs. This will re-program all of them.
10. Turn ON the ignition key to exit the program mode.
11. DONE.
does your unlock button work in car? If it does, do you have another keyless entry key fob? If so does it work? If you just replaced the battery you can try removing battery and cleaning contacts within remote. I know some of the nissan altimas had the same issue and the only solution was a new key fob. Good Luck
Assuming the car battery is ok (if not, buy a male to male cigarette lighter at the auto store and connect to another car until charged enough to unlock the doors...but don't try to crank the ignition!). The trunks won't open if the battery went dead with the alarm set because arming the alarm physically locks the releases.
Sounds like the key code is switched off because you replaced the key fob battery. Try unlocking the car manual with the key in the door lock. Then switch the ignition on to reactive the keyless entry. If this does not work, you might also try pressing the fob unlock button with the key in the door lock until the dash led flashes.
should not be using fob buttons for entry or locking for emergency only .if keyless entry walk up to car with fob do not press any buttons see if door opens then walk away from car with fob about 20m then go back to car without fob and see if door locked if so all working fine .indicators will not flash if the above dont work take back to main dealer for diagnostics keys may need to be reprogrammed
Insert key into door barrel or ignition lock and turn key, whilst doing this press the unlock/lock button, the led on the dash should flash to indicate this has initialised the key to the car, then remove key and test operation of remote. If this fails then a new remote plus coding to the car by your dealership is needed
Sounds like they disconnected your battery when they were working on your car. Your radio probably requires an unlock code to get it to work again which you'll have to get from a dealership with proof that the car is yours.
They key fob will also have to be reset.
Close all the vehicle doors.
Insert the ignition key into the ignition lock cylinder.
Press and hold the door unlock switch.
While holding the door lock switch in the unlock position, cycle the ignition ON, OFF, ON, OFF.
Release the door unlock switch. The doors will lock and unlock to confirm the program mode.
Press and hold the LOCK button and the UNLOCK button simultaneously
on one transmitter. After a delay of approximately 15 seconds, the
doors will lock and unlock to confirm the programming of that
transmitter.
Turn the ignition switch to the On position in order to exit the keyless entry transmitter programming mode.
Operate the transmitter functions in order to verify correct system operation.
To program the fob; close all doors, unlock with door switch, turn key from off to on (without starting car) 8 times, ending in the on pos, the locks should lock and unlock then press the lock button on the fob, turn the key back. That should do it, if you get nothing, replace the battery in the fob. The keypad code is only retrievable through a scan tool. The dealer will charge a half hour to do that even though it takes less than 5 mins.
Seating in the drivers seat , make sure all doors are closed.Insert key into ignition, don't turn on yet. Wait for the dome light to go out, then press and hold the door unlock button , make sure it is UNLOCK, while turning the key ON OFF ON OFF Twice , do not engage the started, just on to the point of being on. Release the unlock button,and your doors should lock, then unlock indicating programming mode.At this point hold down both the lock and unlock button on the key fob. After 30 seconds your locks should lock and unlock, indicating the fob is programmed. This must be repeated for all remotes, whether or not it be new or old. After all remotes are programmed, turn the key off and on again to exit programming mode.
Both doors will not unlock with the key? sounds like the lock motors are jammed this is common on your model after years of service, try turning the key with as much force as you can without feeling it bend, this should overcome the frozen lock rod motors
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