Air bag light 2000 Tundra

I have an airbag light on and I cannot figure out what the issue is, my horn and cruise control also quit working when the light came on.

 

I’d start with fuses
Maybe check for codes if you have a scanner

 

If a code reader reports back steering wheel code related to air bag light, those 3 items together scream clock spring,

 

Gotcha I just put a scanner on it and it didn’t bring up any codes so I figured I’d come in here but I’ll double check any fuses to be sure

 

That was my first guess too. For OP, if researching, I believe Toyota's name for it is 'spiral cable'

 

Yup, sounds like clockspring. Be sure to buy OEM on this. There are plenty of cheap ones.

 

What type/mfg scanner are you using. Basic OBDII scanners typically only read engine codes and may not access SRS module data.
The SRS light should not come on unless the SRS module sends the trigger to the combination meter(CM), except during key on and even then for a few seconds.
If clock spring has issues, it may be sending wrong signal to SRS module and then on to CM.

 

You didn't do anything dumb, like unplug a yellow ABS wire connector somewhere (taking seats out, etc.) while the battery was still connected, did you?

SRS codes are persistent, at least on most cars I've owned, they don't go away once you trigger them. You need a specific reader to be able to access them, and to clear them. It's not something most people have.

 

the obdII scanner I used is a Thrust it didn’t read a code for the light that’s on

 

As far as I know I didn’t take any wires loose now a while back I started to take the steering column loose to fix that steering knuckle that bolts up to the rack but I didn’t take any wires loose that I know of I can double check everything again

 

It won't if it's not capable of reading the SRS module.

 

I said it's most likely your clockspring since you have the 3 issues but your only real way to diagnose here (that I'm aware of) is to get a code reader that is capable of doing Airbag codes, otherwise you can buy a clockspring and hope for the best, this still may not clear your airbag code. You may still need an airbag capable code reader to reset the code after changing.

 

That would've been good to start with, let me explain why, good lessons to learn here.

Watch this video and you'll understand how something like that could've caused the problem. Any time you do anything that will disconnect the gearing/clocking of the steering wheel, you need to do two things:

1. Lock the steering wheel in place so it cannot move clockwise/anticlockwise
2. Mark the position of all joints (with paint pen, ideally) before disconnecting so you know exactly which splines/position to reconnect them.

You may ask, "But why?! Isn't that anal retentive?"

The firm answer is "Naw, dawg"

Here's why: Watch this short video showing how a clockspring works, jump to 1m25s. It's almost like a yo-yo, and if it gets wound up too tight, *SNAP!*, the ribbon cable inside breaks, and you no longer have a connection between the steering wheel and everything wired into the dash.

DO NOT CHEAP OUT ON THIS PART (if replacing). IT'S A CRITICAL SAFETY COMPONENT (airbags, horn rely on it). DO NOT BUY A CHEAP ONE OFF FLEABAY OR SCAMAZON OR TEMU OR ALIBABA! Ideally, order the correct replacement directly from Toyota.

https://www.youtube.com/watch?v=tI98pGCCFD4#t=1m25s​