Nissan 370Z Forum  

Steering Lock: cut one wire. /switch optional

Originally Posted by kenchan so basically turn the car to ACC (listen for the lock to wind and unlock), then unplug car harness from steering-lock, plug one end of the

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > DIY Section (Do-It-Yourself)


Like Tree60Likes

Reply
 
LinkBack Thread Tools Display Modes
Old 04-27-2012, 02:17 PM   #91 (permalink)
A True Z Fanatic
 
GaleForce's Avatar
 
Join Date: Aug 2011
Location: Ontario, Canada
Posts: 21,749
Drives: Varis Arising II
Rep Power: 51865
GaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond repute
Default

Quote:
Originally Posted by kenchan View Post
so basically turn the car to ACC (listen for the lock to wind and unlock), then unplug car harness from steering-lock, plug one end of the new bdl99-hotwire harness to the car harness and the other end to the steering-lock (?)
Right

Quote:
Originally Posted by KaienZ34 View Post
Ok on a functioning lock with the soon to be made dummy plug/hotwire harness installed. How will we know it's working? When the car is off (w/the plug installed) we shouldn't have a key light on and we should be able the turn the wheel? Will this tell us what we want to know?
That's the idea. The steering wheel should move freely as if the lock doesn't exist, and the light *should* remain off.

This is why I wanted to try to get a couple of plugs first so I could do some R&D first, then share my findings... I don't want to cut up my wire harness to do testing.

I'm assuming from the fix Frtiz has suggested that the 2 wires that go to the BCM and IPDM will stil register unlocked. I don't know if there will be problems down the road because the BCM is also monitoring the driver door, ignition, key, etc... It may throw a code or service light... Not sure. If someone is willing to cut a wire, we'll have another tester...
__________________
GaleForce is offline   Reply With Quote
Old 04-27-2012, 02:41 PM   #92 (permalink)
A True Z Fanatic
 
Join Date: Aug 2009
Location: N/A
Posts: 76,801
Drives: N/A
Rep Power: 141521
kenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond reputekenchan has a reputation beyond repute
Default

Quote:
Originally Posted by GaleForce View Post
Right


kenchan is offline   Reply With Quote
Old 04-27-2012, 03:08 PM   #93 (permalink)
A True Z Fanatic
 
ChrisSlicks's Avatar
 
Join Date: Mar 2009
Location: North East
Posts: 6,203
Drives: 09 370Z Sport M6
Rep Power: 653
ChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond repute
Default

Quote:
Originally Posted by GaleForce View Post
I'm assuming from the fix Frtiz has suggested that the 2 wires that go to the BCM and IPDM will stil register unlocked. I don't know if there will be problems down the road because the BCM is also monitoring the driver door, ignition, key, etc... It may throw a code or service light... Not sure. If someone is willing to cut a wire, we'll have another tester...
With Fritz's fix the "state" signal to the BCM should still exist since that is a passive signal that loops through the lock through the contact closure switches. I don't foresee any BCM/IPDM problems.

The power cut prevents the lock from being able to change state or report any problem. My end goal is to identify the "loop through" signals and make a loop back connector so the lock can be completely disconnected and removed for those that desire.
__________________
Hotchkis ARB | Stillen CAI | Art Pipes | Berk CBE | Stillen AP Racing Brakes | AE Performance Oil Cooler | BC Racing ER Coilovers | Doran Control Arms
ChrisSlicks is offline   Reply With Quote
Old 04-27-2012, 03:20 PM   #94 (permalink)
A True Z Fanatic
 
KaienZ34's Avatar
 
Join Date: Oct 2009
Location: LA. not L.a.
Posts: 21,652
Drives: Z34 Tour/Sport
Rep Power: 178
KaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond repute
Default

Quote:
Originally Posted by ChrisSlicks View Post
With Fritz's fix the "state" signal to the BCM should still exist since that is a passive signal that loops through the lock through the contact closure switches. I don't foresee any BCM/IPDM problems.

The power cut prevents the lock from being able to change state or report any problem. My end goal is to identify the "loop through" signals and make a loop back connector so the lock can be completely disconnected and removed for those that desire.


Much much rep for this my good man....
__________________
"These Violent Delights Have Violent Ends"

KaienZ34 is offline   Reply With Quote
Old 04-27-2012, 04:05 PM   #95 (permalink)
A True Z Fanatic
 
GaleForce's Avatar
 
Join Date: Aug 2011
Location: Ontario, Canada
Posts: 21,749
Drives: Varis Arising II
Rep Power: 51865
GaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond repute
Default

Quote:
Originally Posted by ChrisSlicks View Post
With Fritz's fix the "state" signal to the BCM should still exist since that is a passive signal that loops through the lock through the contact closure switches. I don't foresee any BCM/IPDM problems.

The power cut prevents the lock from being able to change state or report any problem. My end goal is to identify the "loop through" signals and make a loop back connector so the lock can be completely disconnected and removed for those that desire.
So, we just need to figure out what to do with Wire #111, if anything at all. Wire 97 will need 12v, wire 98 and 106 need 0v. Have you tried that with wire 111 at 0v or even not connected?
__________________
GaleForce is offline   Reply With Quote
Old 04-27-2012, 04:10 PM   #96 (permalink)
Base Member
 
Join Date: Jul 2010
Location: Springfield, Virginia
Posts: 28
Drives: 09 370Z Tour Sport
Rep Power: 15
gufazi is on a distinguished road
Default

Sub'd and in for pics.
gufazi is offline   Reply With Quote
Old 04-27-2012, 04:17 PM   #97 (permalink)
A True Z Fanatic
 
ChrisSlicks's Avatar
 
Join Date: Mar 2009
Location: North East
Posts: 6,203
Drives: 09 370Z Sport M6
Rep Power: 653
ChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond repute
Default

Quote:
Originally Posted by GaleForce View Post
So, we just need to figure out what to do with Wire #111, if anything at all. Wire 97 will need 12v, wire 98 and 106 need 0v. Have you tried that with wire 111 at 0v or even not connected?
I haven't been able to do anything yet as I don't want to hack my wire harness to pieces. Once I get the connector I will be able to do more experiments and measurements. Also once the wire numbers are identified at the lock end of things it will be a lot easier.
__________________
Hotchkis ARB | Stillen CAI | Art Pipes | Berk CBE | Stillen AP Racing Brakes | AE Performance Oil Cooler | BC Racing ER Coilovers | Doran Control Arms
ChrisSlicks is offline   Reply With Quote
Old 04-27-2012, 05:05 PM   #98 (permalink)
A True Z Fanatic
 
GaleForce's Avatar
 
Join Date: Aug 2011
Location: Ontario, Canada
Posts: 21,749
Drives: Varis Arising II
Rep Power: 51865
GaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond repute
Default

Quote:
Originally Posted by ChrisSlicks View Post
I haven't been able to do anything yet as I don't want to hack my wire harness to pieces. Once I get the connector I will be able to do more experiments and measurements. Also once the wire numbers are identified at the lock end of things it will be a lot easier.
I'm in the same boat as you. We should be able to get this figured out.
__________________
GaleForce is offline   Reply With Quote
Old 04-27-2012, 07:05 PM   #99 (permalink)
Enthusiast Member
 
Join Date: Jul 2009
Location: Occupied California
Posts: 423
Drives: '09 Tour/Sport/6MT
Rep Power: 16
Dwight Frye will become famous soon enough
Default

Quote:
Originally Posted by GaleForce View Post
Correct. That's what we're going for.
I'm in if it works too. Great work guys !
Dwight Frye is offline   Reply With Quote
Old 04-29-2012, 12:39 PM   #100 (permalink)
Base Member
 
Join Date: Aug 2010
Location: Andorre
Posts: 90
Drives: 2010 370Z M6
Rep Power: 16
fritz is a splendid one to beholdfritz is a splendid one to beholdfritz is a splendid one to beholdfritz is a splendid one to beholdfritz is a splendid one to beholdfritz is a splendid one to beholdfritz is a splendid one to beholdfritz is a splendid one to behold
Default

GaleForce wrote:

I'm in the same boat as you. We should be able to get this figured out.

There's a whole lot of "figuring out" goin' on! (Hard to do without knowledge of the lock internals)

While I take no responsibility anyhow, (for something that works AOK for me),
I take even less (!) for any cutting or looping at any place other than at the end source: the steering lock.

Information from the steering lock goes every-which-way by routes actually unknown...just as the lock maker (not Nissan) and Nissan intend.

My objective included the ability, but not necessity, to fit a switch "for gummt inspections" or as "extra" (not less) security in insecure areas....etc.

FYI: see my other posts on this damned lock...I know it inside (and out). There was/is just no logical reason for the BDM (et al) to throw a light or give other drama....or I'd not have used my car as a guinea pig.

"A harness addition" at the lock ? AOK and smooth if you need the switch. If not just cut the wire. As an afterthought one could still hire an "electronic kid" to solder in a switch ...
[a switch can go high up on the left ankle (fuse box) panel which is easily removed for drilling or cutting. A switch wire can be neatly taped back on the steering lock harness].

Small warning (though I'm interested!)..Any work further back up the harness could go expensively awry, especially if using the shop manual for information which it will not, and in fact cannot give you on a security matter...think about it...

Fritz
fritz is offline   Reply With Quote
Old 04-29-2012, 02:03 PM   #101 (permalink)
A True Z Fanatic
 
GaleForce's Avatar
 
Join Date: Aug 2011
Location: Ontario, Canada
Posts: 21,749
Drives: Varis Arising II
Rep Power: 51865
GaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond repute
Default

Good words of warning Fritz. Thanks again.
__________________
GaleForce is offline   Reply With Quote
Old 04-29-2012, 02:18 PM   #102 (permalink)
A True Z Fanatic
 
ChrisSlicks's Avatar
 
Join Date: Mar 2009
Location: North East
Posts: 6,203
Drives: 09 370Z Sport M6
Rep Power: 653
ChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond repute
Default

I disagree that the steering lock is a security measure in a modern car. The only way to steal a modern car is to either have the key, by-pass the key system by applying power to various bits between the BCM and ECM (tricky and time consuming), or load it onto a flat bed trailer. Gone are the days of ripping wires out under the dash and touching them together (hot wiring). The only useful purpose the lock serves is to hold the wheels steady when parked on a hill.
__________________
Hotchkis ARB | Stillen CAI | Art Pipes | Berk CBE | Stillen AP Racing Brakes | AE Performance Oil Cooler | BC Racing ER Coilovers | Doran Control Arms
ChrisSlicks is offline   Reply With Quote
Old 04-29-2012, 06:37 PM   #103 (permalink)
Enthusiast Member
 
axio's Avatar
 
Join Date: Jan 2009
Location: SF Bay Area, CA
Posts: 271
Drives: '09 370Z
Rep Power: 16
axio will become famous soon enough
Default

Quote:
Originally Posted by ChrisSlicks View Post
I disagree that the steering lock is a security measure in a modern car. The only way to steal a modern car is to either have the key, by-pass the key system by applying power to various bits between the BCM and ECM (tricky and time consuming), or load it onto a flat bed trailer. Gone are the days of ripping wires out under the dash and touching them together (hot wiring). The only useful purpose the lock serves is to hold the wheels steady when parked on a hill.
Completely agree. Having a switch would be useful for this purpose, but otherwise, can't really think of a reason to use it. I'm also down in case anyone can mock up a few test harnesses.
__________________
GTM Stg II SC w/ Aquamist methanol injection, GTM oil cooler, Berk HFC, Stillen CBE, BC ER coilovers, Hotchkis sways, TWM short shifter, Clutch spring mod, CarboTech XP8s
axio is offline   Reply With Quote
Old 04-29-2012, 06:55 PM   #104 (permalink)
A True Z Fanatic
 
GaleForce's Avatar
 
Join Date: Aug 2011
Location: Ontario, Canada
Posts: 21,749
Drives: Varis Arising II
Rep Power: 51865
GaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond reputeGaleForce has a reputation beyond repute
Default

Quote:
Originally Posted by ChrisSlicks View Post
I disagree that the steering lock is a security measure in a modern car. The only way to steal a modern car is to either have the key, by-pass the key system by applying power to various bits between the BCM and ECM (tricky and time consuming), or load it onto a flat bed trailer. Gone are the days of ripping wires out under the dash and touching them together (hot wiring). The only useful purpose the lock serves is to hold the wheels steady when parked on a hill.
Exactly. And supposedly the new 2012's don't have the steering lock...
__________________
GaleForce is offline   Reply With Quote
Old 04-29-2012, 07:39 PM   #105 (permalink)
A True Z Fanatic
 
KaienZ34's Avatar
 
Join Date: Oct 2009
Location: LA. not L.a.
Posts: 21,652
Drives: Z34 Tour/Sport
Rep Power: 178
KaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond repute
Default

Yeah no lock in the 2012.
__________________
"These Violent Delights Have Violent Ends"

KaienZ34 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Steering lock failure Terrace Canada 52 06-16-2013 10:32 PM
Those of you who have had Steering Lock Failure Thechidz Nissan 370Z General Discussions 449 01-12-2013 06:05 PM
Steering Lock Elimination Vince Exterior & Interior 38 05-18-2012 11:43 AM
Wire ties on steering rack boot? ferrari_rich Nissan 370Z General Discussions 6 02-02-2010 08:56 PM
Illuminated door lock switch question MightyBobo Exterior & Interior 7 04-05-2009 03:23 AM


All times are GMT -5. The time now is 09:48 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2