Can anyone give me info for the Krystal Enterprises Digital Control Modules installed in a 2005 Lincoln T/C. Why sometimes they work and sometimes not. Are they dangerous. fire ?

Put it back the way it was , led lights are causing the problem . Head lamps are controlled by LCM-lighting control module -your messing with electronics inside .

Lighting Control Module (LCM)
The LCM eliminates the electronic interference and heat associated with the thermoelectric devices used previously. The LCM is a microprocessor based module that controls several vehicle subsystems. It responds to electrical input signals from various switches, sensors, and external modules.
LCM exterior lighting subsystem functions include:

• Headlamps with autolamps
• Turn signal lamps/hazard flasher lamps
• Cornering lamps
• Parking lamps
• Battery saver

Aha, the Rapid Eye Movement question :>) Year make and model certainly helps. Specialist Forums to help you.

REM 2003 ' Lincoln vs Cadillac Forums

https://www.lincolnvscadillac.com > ... > Lincoln LS

Feb. 1, 2017 - If you get some functions back, even if only for a short while, it points to the ... Theoretically, the REM needs to come from an LS with matching ... 2004 Lincoln LS V8 ' Lincoln vs Cadillac Forums
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2003 2004 2005 2006 Lincoln LS °3W4T-13B520-AC° REM ...

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SOLVED: What does the FEM/ REM modules control on a ...

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Apr. 4, 2019 - What does the FEM/ REM modules control on a 2005 Lincoln LS ? ... to unlock the car from that side and see if you get the same problem -jeff.

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Jun. 28, 2013 - Check interior lights to make sure they are off when veh is parked. ... there is a module in the trunk called a REM have seen alot of these modules staying powered on all the time lately, your gonna ... 2005 Lincoln LS For Sale. 2 answers · 0 votes: Anything plugged into cig lighter? Check interior lights to make sure they are o

https://www.google.com/search?q=2005+lincoln+LS+.+if+i+get+a+REM

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These are the front and rear body electronic control modules, they control all body systems.

Fuse box diagram.
https://www.autogenius.info/lincoln-ls-2000-2006-fuse-box-diagram/
Some good info on fan operation of you car on below link.
https://www.justanswer.com/ford-lincoln/7k3bc-lincoln-ls-05-lincoln-ls-cooling-fans.html

Just a thought: If you have two electric fans one comes on when you turn the A/C on the other does not come on till the car reaches normal operating engine coolant water temperature.

Sorry , it doesn't have a idle air control valve . Your vehicle has electronic throttle control .
Electronic Throttle Control
Electronic Throttle Control System Diagnosis Diagnostic Quick Tips Snap on...

This part of diagram for power windows. Check voltage at fuse--relay--circuit breaker, use digital multimeter.
Sometimes when battery voltage is lost, some modules have to be reprogrammed?
Hope I didn't post this more than once?

Take a look at below lfor lights control modules on your vehicle


Where is the lighting control module located on 2000 Lincoln LS? My left side tail lights are out. The local dealer troubleshot it to the lighting control module, but want $900.00 to fix it. I would like to remove it and get the part number off of it so I can order it.
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Best Answer: The 2000 Lincoln LS does not have a lighting control module, the lighting functions are controlled by several modules that communicate with each other over the SCP network. These modules include the instrument cluster, front electronic module, rear electronic module, daytime running lamp module and the drivers door module. Considering your taillights are out I am assuming that the dealer determined that the REM (rear electronic module) is bad, this module is located in the trunk. Remove the carpet lining on the passenger side of the trunk, the module is bolted inside the quarter panel. Now for the bad part, this module is configured for the vehicle that it's installed into, this means you will not be able to grab one and put it in, the data from the original needs to be uploaded prior to removing the module and then it is downloaded into the replacement module. Other then a Ford or Lincoln dealer I doubt you will be able to find anyone that has the equipment to program the new module, sorry.

U0121 Lost Communication With Electronic Brake Control Module

As with most trouble codes, the U0121 code gives a general diagnosis. Review the info on this link. Look through the service bulletins. The problem could be a loose plug or faulty wiring to one of the modules or between modules that are listed in the article. I hope this helps somewhat. Good Luck......

Electronic's , aren't they great ? There is a control module (power lift gate module ) Switch (sensor) inputs to the module . Lift gate obstacle detection strip right and left , liftgate cinching motor ,liftgate unlatch motor .Liftgate drive motor assemblys left and right . Probably a bad switch feeding bad voltage signal to the control module ! Like one of the obstacle detection sensors maybe. Could possibly have DTC'S - diagnostic trouble codes stored in the control module. Your best bet maybe to have the dealer run diagnostic's on it , check for codes . Need a factory or professional type diagnostic tool to do this. I would say you mite be able to check the sensor inputs to the module , don't know what or how much voltage > Some of these circuit's are a five volt signal from the module . Ohm check the obstacle detection sensor ? I still think best thing would have it checked for DTC'S . Almost forgot about the thing opening when you close another door , All the modules on the vehicle are connected on what is call a serial data network . Doors have modules inside as well .could be commanding that door open some how.
If you would like to see what your up against , here is a web site for free wiring diagrams http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size. Under system click on body & accessories , then under subsystem click on power liftgate. Click the search button ,then the blue link. The second diagram down starts liftgate diagrams . Good luck !

have yor dealer check for updated software for your transmission or engine control modules