2000 Lincoln Navigator heated seats

Hello and thanks for the reply, the first thing I had done was check the fuses, sorry I forgot to mention that, which places offer scanning? And is there any alternative to scanning. I disconnected the 4 pin connector and tested all combinations for ohm reading and didnt get any readings. However when the connector was disconnected the light didnt illuminate when the button for the heated seats are pressed

Ok, I have a few family members who are mechanics but I would hate to bother them, and I understand that there is a module between the switch and the heating element, the harnesses I am talking about are coming out from underneath the leather then go into the module that the switch is connected too.

Also what are some possible problems causing this issue, other than the heating element is burned, and the module is bad

I see. Well if the module is bad I wouldn't plan on paying for a new one (this vehicle is over 13 years old). I have been watching instructional videos on how to remove the heating element and it doesn't seem that difficult (other than the hog clips), however it is said by many that is the most difficult part. Do you have any insight or tips if I go about this route.
Off topic I will be posting another issue relating to the heat coming from the heater core, if you can please take a look at that too, you seem to be very helpful
-Thanks

I posted the question a couple minutes ago, I had recently changed the coolant fluid and was reading that that could have caused blockage (please take a look at the post for more information)

You have a valid point, a few years ago I had a family member replace the front heater core which costed almost half of the current value of the car :( when we got the car back we noticed that the abs and airbag lights were on and asked him why the lights were on. He said that one of his workers accidentally spilled antifreeze on the sensors which didn't make a lot of sense to me but my father was understanding of his explanation. About a year ago an air suspension hose blew (for the 3rd time) and I went to turn the switch for the air suspension off so it doesn't blow the motor again (for the 2nd time) and noticed a harness removed near the switch. Turns out the switch was for the passenger airbag! After that the passenger airbag light has been off and the abs light is the only one that remains on. Will the scanning offered from autozone detect if there is any other screw ups from when changing the heater core?