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And a 2003 Lincoln Navigator when they shut the car off and relay boxes keep ticking the door locks keep locking and unlocking how do you fix it

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  • Terry Duncan
    Terry Duncan Jul 08, 2017

    Ok i replaced. The security control module and that fixed the door locks from locking and unlocking.



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The power locks on this vehicle are controlled by a electronic module ( vehicle security module ) ! It use's inputs from door switches to control locking an unlocking of the door , Plus door ajar switches ! The first thing would be to check for DTC'S - diagnostic trouble codes in the security module . Need a factory or professional scan tool for that . If you don't have one you'll need to check all inputs to the security module .
Door Locks Go Crazy 1
Door Locks Go Crazy 2
Door Locks Go Crazy 3 this a dodge vehicle but doesn't matter , samething . pretty much . free wiring diagrams . There is a bad signal to the module , short to ground maybe . Do you know how to do automotive electrical testing with a volt meter ? How to use an read a wiring diagram to find points in a electrical circuit for testing ? Electric Testing Techniques You Need to Know

Posted on Apr 22, 2017


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SOURCE: 2003 Lincoln Navigator door sensor problems

One of your courtesy light switch's is defective, it can be in any of the five doors (rear hatch has 2), Ford can determine which one (courtesy light switch) is at fault by using a NGS (New Gen Star Tester) to monitor the switches through the Generic Electronic Module of your truck, these switches are attached to the door latch assembly and are time consuming to replace, so the Ford tester is the cheapest option.

Posted on Nov 13, 2008

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SOURCE: my 2003 lincoln navigator

A safety feature on your car is that it will not shift out of "park" if you are not applying the brakes . Make sure your doing that while trying to shift out of park .

Posted on Jan 21, 2009

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SOURCE: my 2003 kia sedona door lock stays unlocked

check the clip where it connect to the door pan and see if a wire is broken or that whole peace is broken where it doesnt work any more

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Posted on Sep 18, 2009

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SOURCE: My 2003 Hyundai Sonata Door locks will not lock using

I have exactly the same problem. Keyfob will unlock the doors, but will only arm the alarm once the doors have been locked manually. Central locking button on driver side door no longer works, but I hear the clicking sound you're referring to.
I took it to a mechanic, and he seemed pretty sure it was a bad master window / door lock switch. The price he quoted to replace it was $255 plus tax, and I could never bite the bullet and pay for the work, so I've just been living with the problem.
Have you solved your situation yet?

Posted on Jul 20, 2010

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1 Answer

2003 Navigator Lincoln Navigator the locks keep locking and unlocking

Faulty input to smart junction box . Door ajar switch . or the module has internal problem . Do you know how to do automotive electrical testing ? How to use a DMM - digital mutimeter , read an use a wiring diagram to find test points in a electrical circuit ? Have a factory or professional type scan tool to check for DTC'S an view input's to the control module in charge ? The Trainer 29 Understanding How Electrical CIrcuits Work and How to Test...
Electric Testing Techniques You Need to Know
The electronics on your vehicle are complex , above most people's skill level to even mess with ! There are no magical fixes for these type problem's , need to do testing .

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My both front doors only do not unlock or lock with remote or inside button....

The door panels will have to be removed to access locks, luricate, check linkages, check for damaged wires,replace pwr lock mechanism if required etc.

Feb 17, 2016 | 2003 Lincoln Navigator

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Help my 03 Lincoln navigator Driver door unlocks with remote and then locks back when Driver outside handle is pulled i can't unlock Driver door with key I can only open Driver door from inside

Sounds like a door lock actuator motor not working properly inside the door. The door assembly will have to be dissassembled for inspection

May 31, 2015 | 2003 Lincoln Navigator

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Lincoln Navigator door will lock but not unlock by swtich on the door

You need a new lock actuator inside the door. Go to the dealer and ask them, it is not too expensive...

Best regards,

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2003 lincoln navigator can't shut truck off

Under the hood you will find things called Power Boxes. They can be marked with plastic molded labels and the one with "Fuel Pump Relay" can be removed from its position and all power to the fuel pump will end. Then you need to disconnect the Negative Battery cable to save the battery and kill anything electrical.

Be aware that the Anti-theft will be inactive. You can lock and unlock your car with the key.

You then need to have the ignition switch serviced.

May 12, 2014 | 2003 Lincoln Navigator

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If it's only one of the lock/unlock buttons...probably as simple as replacing the switch on that side,

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What is the fuse box number for locks

  • Right hand side of the instrument panel. Fuse # 30 and is a 30 Amp Green fuse.
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  • See diagram below.


  • Hope this helps.

Nov 02, 2011 | 2003 Lincoln Navigator

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My 2003 Lincoln Navigator front passenger door lock does not raise or lower using lock/unlock switch in car or on keyless entry. I hear a "grinding"sound when I try to open with the unlock...

That noise is due to a failed door lock actuator. This is the electrical device located behind the door panel that is responsible for popping the lock when you press the button. Door lock actuator replacement will eliminate the noise and bring it back to normal operation.

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