2006 navigator Not working power locks, auto night lights, keyfob entry, driver door keypad entry, open door doom light. Not sure but I think its all connected to car security module. I was able to fine wires for power lock and there is signal on input of security module. don't know other wires. it does have after market remote start. may be security module it disabled or not working at all. need help how to check what is wrong.

Cars & Trucks - Lincoln - Navigator - 2002 Lincoln Navigator