Question about 2003 Lincoln Navigator

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2003 Lincoln navigator- several electric problem.

The computer system tells me that: door light is ON (when the door is closed)
2.that my liftgate is open (which is not), i have to manually open the liftgate
3.My interior light and mirror light stays on when i turn off the vehicle for about 15 minutes before it turns off, which is killing my battery. running boards don't open, which works fine when the liftgate works.
5.The vehicle stalls when i put it on reverse or stop.
6.The Advence traction light is on
7. the Anti-lock ABS light is ON
8.the heated seat and lighter are not working (which i will check the fuse).
9. the air suspension on the left rear side is lower then the other ones...

I have brought the vehicle to 2 different mechanics which temporarely fixed the liftgate and running boards only, but after 2 or 3 days back to the same problems.

If you can please help me on these problems. i think it's probably 1 or 2 bad electric connection that is causing all these problems. if you have any solutions or a procedure that i can check where is the main problem would be great, and if can provide me with a pdf of the Electric wiring.


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  • yadayada
    yadayada May 11, 2010

    this is a free forum and u will not gwet answers to this many issues, use the pay options of live chat or prem problem posting.



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Take the vehicle an have it hooked up to a professional type scan tool that will communicate with all the computers on the vehicle !

If these lights are on 6.The Advence traction light is on
7. the Anti-lock ABS light is ON - there are codes stored in thier control modules . All the things your have trouble with have a control module incharge . That is except the lighter . I will tell you honestly your best bet mite be to take your vehicle to a qualified repair shop ! Dealer . You have no idea of the complexity of your vehicle . All the computers , serial data network . How the computers share info on said data network . Do you know how to use a DVOM . digital volt ohm meter ? how to read a wiring diagram ? How to find wiring diagrams . No one on here is going to give you a magical fix . Looking at wiring diagrams for the problem componets , seeing if they share a common power source or ground point . Testing electrical circuits . I would say you probably have no clue as to how thesee different systems function . I ECM Inputs and Outputs Diagnosis Voltage Drop Essentials TST Motor Age Electric Testing Techniques You Need to Know

Do you where to find these systems get B+ voltage or do you just look at the fuse , how about ground points , do you know how to find those ? You need good service repair information . How to Diagnose Controller Area Network CAN

Posted on Mar 03, 2017


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Posted on Jan 02, 2017

  • 22 Answers

SOURCE: Power liftgate not working with FOB, overhead

Sounds like the sensor/switch that detects if the door is closed or open is faulty, you can get the part from the dealership and replace it yourself or take it into the dealership or any repair shop and have them check it out and fix it.

Posted on Jul 19, 2009

  • 6 Answers

SOURCE: liftgate motor and suspension compressor not turning on.

replace your remote battery or some wire is making a bad touch or disconnected

Posted on Jul 23, 2009

  • 5651 Answers

SOURCE: 2003 lincoln navigator lights on rearview mirror

If you mean the outside rearview mirrors, they have a courtesy light called a puddle light. And if not working, you may have the interior overhead light turned off on its selector switch.
Usually this is caused by the rear hatch or rear tailgate window not being fully closed. Some models may have an extra courtesy switch in the rear cargo area that is intended for "picnic" mode and overrides the automatic shutoffs.
There is suppose to be a battery "minder" which is suppose to keep the battery from discharging when lights are left on. You may need a dealer to explain why this feature has not worked.

Posted on Feb 15, 2010

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