Need help identifying this part on my truck please!

I have a 2017 toyota tacoma limited 4x4. Bought used at 30k miles from dealer cash.

Anyways I hate having to go back to that place so I'm hoping someone can help me identify my problem part. I added pictures.
The part is located under air filter box area and next the the oil dip stick. Looks like a cable..

 

Ok, maybe I'm old and dumb but I'm confused. How do you know it's a problem part if you don't know what it is? What problem is it causing? A bit more background might help someone zero in on it.

If I missed something I apologize in advance.

 

Looks normal to me. I believe it’s the sensor wire coming out of the shielding they put on it so the catalytic converters doesn’t melt the wire.

 

I would suspect the question is really "What does it sense?"

 

One wire. Temp or pressure sensor for something? I'd go out and look at my truck to see what accessory that looks to be going into (AC compressor, PW steering) But as other's have stated, if you don't know what it is then how do you know it's a problem. Weird

 

Flux capacitor controller. Only place to get replacement is Doc Brown’s place. Just don’t go 88 mph until replaced. My $0.02.

 

Looks OEM to me. Are you having any issues with the truck?

 

Thanks for clarifying.

 

@Az-Moser
That appears to be the power steering pressure switch.
Edit: and it's corresponding plug/wire.

 

Welcome to the forum

What is the actual problem

 

That’s my guess as well.