Steering lock problem solved (for real)
 

Note--in order for this to work on your car your steering lock must be in working order,if it is broken you will have to go to the dealer or buy one yourself


This cutting up the harness and buying a adapter persuade my and Dai to find out what the fix is.

If you remove the fuse box next to the battery put the car in accessory then pull the steering lock fuse.

Then just put everything back where it goes and that's it

:pics:

And are you sure that fuse only powers the steering lock?

you might be on to something :excited:

we are sure. err thing works.

The car starts and shuts off just like normal but of course you lose the lock.

That fuse is only for the lock I wouldn't post it if I didn't try it on Dai's car first.

You guys have the name of the marked fuse that needs to be removed
so guys know which one to remove? or a simple pic would do

This is Epic....

I see a lot of angry people with $500 steering locks shaking their heads.....

Ill try to get.pics up. but the label reads.."steering lock" for rral. still ill try to get photos

Dai maybe able to get pics I'm on the dyno with my car.

You would like that as a safeguard the car wouldn't start with that fuse blown... interesting find and definitely good to know!

car wont start with the fuse blown.. hrmm. dont believe thats true. pulling it is same effect. and it starts fine ad everything works.

If you look at page 26 of the PCS section of the service manual you'll see the schematic of the IPDM E/R (module next to the battery). It is indeed a 10A fuse location #48. This feeds the steering lock relay which feeds the steering lock unit. Give me a few minutes, I'll get a screen shot and upload it for you guys.


Great find!

Here is the schematic.

http://i1188.photobucket.com/albums/.../IPDMfuses.jpg

I will definitely take half the credit(as I pat myself on the back)and the other half to my buddy Daisuke149:hello:

As this gets confirmed by you guys be sure to start throwing out major REP'S mine and Dai way.

Thank you (as I take a bow)

Just b/c the steering lock relay + Throttle Control motor relay get there power from the same wire has nothing to do with it NOT receiving power while S/L relay fuse is removed that circuit is undisturbed.

Excellent work guys. I had thought about pulling the fuse if mine ever went to try and get it going. Great to know this solves the steering lock dilemma:tup:

Glad we could help:tiphat:

It feels good to give back to my fellow Z guys:hello:

I don't see where the Throttle Control is fed by the SL relay. The schematic does not show the wires as connected to each other, merely passing by. A black dot indicates a connection. They both receive power from the same wire, but that is before the fuses....

nice find, guys! :tup: keep us posted on any ill side effects. :D

meh, im not angry. i will be running the steering lock as it is until my RevC fails... which might be never during my ownership. if it does fail, i will put my RevB in the car and decide to do this or the brown wire snip.

Dai is driving his car home as we speak his was the first to have this mod done on,I called him and ask if everything was OK he said everything is like normal.:happydance:

if yours goes.. pulling the fuse wont help. its too late. have to pull the fuse while its in unlocked position.

Basically same concept as the wire, cept no cutting, no cost for harness / plugs etc.

Aaahhhhh, I see :tup:

pardon the quality...

Good job Dai

I like the part of you holding that little fuse.:roflpuke2:

P.S.. come to think of this mod can be considered weight savings no??

You're looking at it wrong. There's so much going on in that area of the drawing I can see where one might get confused, but just going of of this schematic the TCM relay is NOT affected by the S/L fuse.

Your wrong!!!

All of those relays are powered by the same wire with a fused wire branched off to the side for each relay the Node you are referring to is a junction point which goes to the Throttle Control relay it has it's own fuse but is branched off the same wire the S/L is.

I have no idea how you come up with this by read the diagram you posted.:shakes head:

Ok, I'm wrong. I see it now.

Here I thought only my wife got off on telling me when I'm wrong... :bowrofl:

Thanks for making me feel at home :tup:

You show signs of being a big man to admit your wrong.

Have a rep and a smile.:hello:

:icon18: hahaha! :tup: lol

I've never been too proud to admit when I'm wrong. Thanks for the smile ;)

:p :tup:

http://www.the370z.com/diy-section-d...ml#post1674782

This shows things a little differently. One Leg to the lock, one leg to the CPU but not by the way of the TPRM

Enlighten us to what the difference is.

Also Dai is driving his car around and has called me to inform that everything works as normal with no issues at all.
So it really doesn't matter how differently the other thread shows it this is the best,fastest,no damage to car,the only draw back we found is we actually had to take to fuse out ourselves.

Hmmmm, feeling a little stupid here......

I tried removing the fuse box beside the battery, but after removing the battery cover, rain guard moulding, windshield glass/wiper molding, and attempting to lift the IPDM ER fuse box, I finally gave up! I couldn't lift the box high enough to either open it or disconnect the harness to it from below. Do I have to remove the battery first???

I'm new to this platform so I gotta ask, why are we fixing the steering lock?

There are lots of threads on this, and you having an 09 should be very aware of this issue. Sometimes the steering locks fail and leave you stranded. Very hard to fix if it fails in the locked position, needs new parts from the dealer. Not great. Disabling the lock prevents the issue from occurring.

http://www.the370z.com/diy-section-d...=steering+lock

http://www.the370z.com/nissan-370z-g...=steering+lock

http://www.the370z.com/nissan-370z-g...=steering+lock

This is great news!

So this will remedy this problem? good news sans $500

As stupid as it sounds... what negative comes from disabling this? I mean, what does the steering lock really do, aside from lock the steering column...

Whee! and friends, GaleForce is correct. The "COIL" does receive power through CB#48.
The Throttle Motor Control Relay as a whole does not receive its sole power from CB#48 but also from CB#51 but the coil does receive its power from CB#48.

I am unsure what the coil is there for but when you remove CB #48 you will remove power to the coil of the Throttle Motor Control Relay. Attached is a thumbnail with circles for that little black dot AND arrows for tracing the circuit to the ECM for everyones viewing pleasure.

I AM NOT SAYING THIS DOESN'T WORK. I am just saying that GaleForce IS right and we don't know what signal the COIL provides at the ECM for both the Steering lock and the Throttle Control.

You are wrong too please learn how to read a wiring schematic.:shakes head::excited: