IG1 NO. 2 blows instantly

I was driving hit a pothole and out of nowhere my A/C shut off, pre-collision malfunction, cruise control malfunction, heated seats, and BSM all went to poop. Checked the fuses and IG1 NO. 2 was blown and i checked all the rest and they were good. Did some research seems like its pretty common. I dont mind going down the list of all the systems but I dont have an electrical diagram to see all the locations of all the wiring. As anyone else had success in figuring out what your issue was. If so please let me know so maybe it can give me an idea where to start.

Thank you all for your time!

 

Let me see if I can grab some diagrams.
I'll be happy to help best I can.

 

Thanks brother, Im on day 2 of trouble shooting. I live in Yuma, AZ so my truck is basically underivable without the A/C. Was hoping maybe if you had the BSM system, heard that was a common issue. i already checked the heated seat plugs and they look good.

 

My first instinct would be to pull the Magnetic clutch relay.
That fuse powers the Mag Clutch. Pulling the relay, kills power to the clutch.

 

@TnShooter is that the MG/CLT relay? I pulled it put a new 10A in the IG1 NO. 2 and it still blew.

 

Yes. Are you familial with using a test light in place of a fuse to find a short?
Other wise, you are going to be blowing a lot of fuses in the process.

Do you you have a test light?

 

@TnShooter I do not but I will def grab one tomorrow, Ive blown like 30 fuses hahah

 

Yeah. That can get expensive quick.

 

@TnShooter is there a particularly one you recommend?

 

You can use a voltage meter too.
As for a test light. Do not get one that is LED. get one with a standard bulb.


In the mean time. Watch the video below. It is very helpful and will help you understand what/how we need to check the circuit.

https://youtu.be/M4LGykZiRtY?si=ghB2MVjAsyKWfaWT

 

@caribe makaira thank you for the list of systems, Im very familiar with your name Ive been seeing you alot when it comes to replies on this issue. Based on your experience what do you think some good steps would be.

 

Here are the components that the IG1 No.2 fuse go to

CDS relay (control)
Fan relay (control)
AC Amplifier
Radar Sensor
Batt Charger Relay for towing (control)
Mag Clutch

 

@TnShooter just watched the video, i have a multimeter and based on my understanding i can use it one each perspective system so to see if it a complete Circuit. But he mentions connecting it to the wire not sure how thats possible if they are insulated?

 

Check wiring under Taco, might've had a foreign object bang into the towing harness wires.

 

@TnShooter do you know the location of those systems so i can manually and visually inspect?

 

Locations of components powered by the fuse.
Component list is above.

 

@caribe makaira roger that, will so deep dive on the cables under the truck.

 

@TnShooter this is amazing, will definitely check these. Also i didnt state it in the orginal post but my truck is a manual TRD PRO if that matter.

 

@STEELeR43 bought it brand new, but Im 800 miles above the warranty period so they wont cover me