Fuse location

Does anyone happen to know the location of fuse for Neutral safety switch on a 05 V6 4.0 prerunner?

 

There is not dedicated fuse for it, the indicator portion is fed by the IG1 Fuse (10A) and the starting side is fed by the STA Fuse (7.5A).
What kind of issue are you having with it?

 

The first of July the steering intermediate shift went out in my truck. And I was told that it wasn't safe to drive my truck. To only drive it if I need to drive it. So that's what I started doing, one morning I went out to start my truck up because it had been sitting for two or three days and I hadn't started it up. But when I went to start it, it didn't want to crank up the horn work the lights work everything worked. So I got on Facebook and I started asking some questions in some of the tacoma groups that I in. And someone suggested try wiggling the gear shift to make sure it's in part really good. So I did that and it cranked right up. So two or three days later I went out to do the same thing and the same thing happened. So I started doing some research and found out from my research that the neutral safety switch could possibly going bad. So I started researching there and it said it could be a fuse so I was trying to figure out where the fuse is so I can change it to see if that could be the problem. Because I'm thinking how can this neutral switch go out and I'm not even driving the truck it's just sitting there.

 

Maybe the neutral safety switch is trying to keep you from driving a truck with a bad intermediate shaft

 

It's a fairly common failure especially in high salt areas, they get full of moisture and corrode.
They can be quite a chore to replace as well.

 

I live in Florida. We have salt in the air but not on the streets.

 

It’s almost never the fuse.
And it most likely the NSS.

The early year trucks had a TSB on the switch.
The connector can get moisture in it. But that isn’t usually the case in most situations.
It’s the NSS itself.


Here is a good link to where it is, and to get it off.
I will warn you, DO NOT get too rough with the big 22mm nut.
If it’s stuck, keep working with it easily, or cut it off.
https://www.tacomaworld.com/threads/p0705-code-popped-on-yesterday.311737/page-4#post-18876471

The last thing you want to do damage the seal that the shaft goes through in the transmission.
If you get a leak there, the transmission has to be partially disassembled to replace the seal.
I’ve only seen this happen once, and it was a member on here that had it happen.
He had a HARD time getting the nut off, and admitted that he was the one the probably caused the leak.

 

@b_r_o has done a few of these.
Maybe he can tell you a few tips and tricks to make it easier.

 

If wiggling the shifter or moving it to neutral helps start the engine it's "probably" a bad NSS.

They can be a pain to replace if rusted onto the shaft on the side of the trans. Honestly every one I've replaced fought me. If it fails because of rust inside there'll be rust on the shaft and nut outside..

Heat with a torch, penetrating lube, using a battery powered Sawzall to cut it off the shaft.. just keep trying stuff until it comes off. Not much else for advice

BE CAREFUL with the shaft and seal like Tn mentioned. If you mess it up you're basically looking at a new or used transmission unit

Might have to bite the bullet and let a mechanic do it, or someone with a more steady hand

In my opinion, if it starts in neutral I'd wait on the NSS and tackle the steering shaft issue. That's waaay more dangerous to drive around with

 

Would it throw a code if it was bad?

 

If there was a problem with the indicator circuit it most likely would but the starting circuit is separate and not connected to the PCM.

 

I'm not understanding this. We hooked up a code reader and no codes popped up.

 

He means the wire that goes from the key down to the starter isn't monitored by the computer. So it can have a problem and the computer won't know

The computer on your truck only cares about problems that affect the emissions that come out the tailpipe

The starter system is basically just the battery, the ignition switch, that rusty transmission sensor and the starter motor. Its a separate system off by itself