So new here..hope to get help b4 taking to dealer.
so I lost remote start , turn signal, wiper only works on high and last lost steering control buttons for radio. So replaced all with new motorcraft parts but no luck.

What I do wrong?

 

Sounds as if you're throwing parts at it without diagnosing the problem(s). More information... Miles? Modifications? e.g. Is the remote start factory? etc., etc.. Since this (and other information) is missing...

Put your complete vehicle information (year, model, cab, trim, engine, wheelbase, _x4 drive, mileage, modifications, etc., etc.) in your signature. *Eliminates playing 20 questions when/if a post is made pertaining to your vehicle.
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ok thnx so its a 2013 F150 vin 1FTFW1EF4DFA93829 crew cab xlt 4x4 5.0L with 138K miles with 145" WB .. there are no modifications everything is stock and all was working just fine i dont drive it everyday maybe on the weekends if i need it to pick something that requires a truck etc. just one day i had no turn signals, my headlights stays on until the overide of about 15 min, my switch for wipers only works on high , i lost steering control buttons for the factory radio and last my factory remote start stopped working. again all was fine til a week ago i starting researching and all videos led me to believe the individual switches went bad ie. head lights, turn signal/wipers and radio steering control ***** and thats why i changed them all except of course remote start. ive checked the corresponding fuses and their all good I know dealer is going to want to charge me and arm and a leg so thats why im asking for help.

 

Bring it to Autozone or similar and have them check for codes. There can be stored codes but no CEL. Also have them test your battery while you are there. I’m assuming you have something causing a code to be thrown, as that disables the remote start. I thought only a code that throws the CEL would disable remote start, but I could be wrong (and you also didn’t mention if your CEL was on or not).

How old is the battery? Are battery terminals and connections clean and free of corrosion? Have you checked major body grounds on the truck (there are several) to be sure they are clean and bolts are snug? Have you inspected all wiring harnesses you can get at to be sure there are no breaks or chewed wires (in the engine compartment and in the cab)?

 

This sounds a lot like a BCM problem, have you checked the wiring harness/connectors going into the passenger footwell fuse box? That’s the BCM. I hope it’s something simple like that, but check it out and see if that’s good to go. I have had a connector going into the BCM come lose and cause my truck to stall out going down the highway. Couldn’t get it to start up again, my gauge cluster always lost power as well randomly or gave me a bunch of warning lights. Turned out my aftermarket command start wiring harness was zip tied to the connector and had been slowly putting just enough tension on it to cause the connector to pop out over time and bumps. It’s these slide and lock sort of connectors going into the BCM

I’m no expert but I definitely think it’s worth a shot. I always thought my truck was just messed up and hated the dealer who sold it to me for it. Been fine ever since I fixed that problem

 

So thanks for the response basically same with me but just the harness was loose once I put it back and reconnected. It fixed 3 of the issues now I just need to see how to reset the remote start. Thnx again

 

Right on! I’m glad I could help! For the remote start, clearing the codes like previously mentioned might fix that. Or even try disconnecting the battery for a bit and reconnect it again.