Where is the block heater location on a 2005 Lincoln LS ?

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.

If you mean the radiator fan, the switch in the engine block that tells the drive train engine module when to shut down is probably bad. This switch/sensor probably needs to be replaced. It is located near the water pump and thermostat.

if it came with a block heater there should be a way to plug it in under the hood its not that hard to install give these websites a try www.alldatadiy.com and www.autozone.com if all fails stop by you located Lincoln or Ford dealership and that be able to show you what to do wish you the best of luck and it has been cold here in Michigan too take care Michigan Man.

There is a very good chance the Dual Coolant Control Valve has failed. This is located at the botton right side of the engine fan shroud and has 3 heater hoses connected to it. This valve controls heater or AC temperature inside the car.

The message means the electric park brake needs serviced. In this case I feel that considering the ac problem, the Coolant Control Valve is defective. The valve can create RF interference that messes with the electronics of the park brake system. The Coolant Control Valve is located at the right side bottom of the radiator fan shroud and has 3 heater hoses connected to it.

its located on the right rear of engine compartment. happy hunting

the charging port is down low near the ac compressor on the engine

The block heater is already installed in your 6.0. The cord may not be there as it is an option in some states and standard equipment in others. The best way to see if your cord is there is to crawl under and look up by the # 4 cyl and you will either see 2 prongs sticking out for the cord or you will see the cord. The cord should end in the front bumper behind where the front tag would be. If you dont have the cord Id suggest getting it off ebay as it should be cheaper than the dealer. Hope this helps.

- If temp guage reads normal, the lack of heat may be due to the Heater Control Valve. Located in front of the radiator. Lower passenger side. A real bugger to replace.
- The plastic cap just over the thermostat is key in re-filling the anti freeze and bleeding air.