1999 lincoln navigator. key turned off and pulled out. still have indicator lights on dash and power to radio. ???? what causes this? bad ignition or theift system or what?

Question edited for clarity.
Question moved to Lincoln Navigator.

Any DTC Codes?
Did you disconnect the battery lately?
Is the Security Light flashing?
Do you have fuel pressure?
Check for spark?

The most common causes that hinders normal starting operation of your Lincoln Navigator are dead key fob battery, dead 12v battery, corrosion on battery terminals, bad alternator, clogged fuel filter, broken starter, blown fuse, empty gas tank, immobilizer error or any fault in the electrical system.Dec 17, 2020

Lincoln Navigator won't start - causes and how to fix it

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30 minute reset turn key on ten minutes security light will go off turn off back on three times it ctanks

Stuck ignition relay possible. With hot battery, turn key off and then feel each relay. If you find a hot one, change it.

Fine the short cirrcut.

Without hearing it very hard to say.It actually just sounds like a bad battery & alarm,fuel pump,some relay is just not getting full power-Start with having battery tested-JT & Good Luck

sounds like antitheft system is acting up..needs reprogramed maybe..pull the negative cable with the key on....kills everything..then shut the key off..reconnect the negative.. turn the key to run position for a few seconds(resets all factory presets) see if it will start..

That's odd. Why would he put ecm on the estimate for a bad fuse block? Not to question the dealer, but do this quick check: look in the power distribution box under the hood, and check for a large, perhaps 60 amp, maxi-fuse, dedicated for the fuse box. Ifr you have such a fuse, check that it is still good. Many vehicles have this type set-up.

Could be a couple different things could be bad starter bad starter solenoid bad neutral safety swich does it make a clicking sound at all when you try to start?

Deactivating/activating the autolock feature...
Before following the procedure, make sure that the ignition is OFF and all vehicle doors and the liftgate window are closed.
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.

Also, if your vehicle is equipped with a coded-key anti-theft system. Only the correct key will be able to start your vehicle. If your keys are lost or stolen, you must take your vehicle to a Ford/Lincoln-Mercury dealership for re-programming.
Programming additional keys If you need additional keys electronically coded for your vehicle, spares can be purchased (a maximum of 16 keys can be programmed). To program a new key, perform the following procedure:
1. With the coded key in the ignition, turn the ignition from ON to OFF.
2. Within 15 seconds of turning ignition off, insert the new coded key
into the ignition and turn it from OFF to ON or START. If successful, the
THEFT indicator light will illuminate for two seconds. Repeat procedure
for all new keys.
If key coding fails, the THEFT indicator light will flash.
Coding failure can be caused by any of the following:
² The new key was not inserted into the ignition within 15 seconds.
² 16 keys have already been programmed.
² The new key does not have an electronic code.

Other details can find in the 1998-Lincoln-Navigator-Owners-Manual

Good luck (remember comment and rated this).

make sure it's all the way in park. push the lever and turn the key at the same time.