Please regurgitate all your 4g and 5g 4ws knowledge here!

[RattyMcClelland]

Iv seen you thread on preludepower on your SH suspension swap. Good stuff as the S suspension is far superior.

[NFrank89@gmail.com]

After quick review of the 4ws system a better option would be to trick it into failsafe mode. this will allow the failsafe system to slowly return the rear wheels to neutral and hold them there. this will also turn on the 4ws light letting you know that the system is disabled and we dont have to mess with resistors or anything!

[Pushki]

Why would you want to turn off the 4WS?
You know the wheels aren't 'locked' when the system is disabled don't you?

[indigolemon]

As Pushki says, failsafe mode does nothing. It disengages the actuator. Your wheels are held straight by springs as long as the 4WS light is on.

[mercutio]

yeah then its ready to throw you into the nearest ditch

[rob quilter]

yeah then its ready to throw you into the nearest ditch

*que Ammo vid


Yup, the wheels aren't locked and can still move under load.

[NFrank89@gmail.com]

heres a screen shot from alldata for the 4th gen


but if it dosent work back to the first idea which should work

[NFrank89@gmail.com]

just read thaty again... dosent say it holds them there. could have swore it did.. my bad lol

so then, back to plan A. and in response to Pushki

Why would you want to turn off the 4WS?
You know the wheels aren't 'locked' when the system is disabled don't you?

that's one part of the goal here, giving the driver the ability to turn 4ws on and off at will. *safely*. my original idea was to use a relay or a switch to cut signal from the steering angle sensors and switch to a set straight forward resistance which will be determined by metering the steering angle sensors in the straight forward position. this way the 4ws system will not see that the front wheels are turning, it will see a signal that makes it believe the front wheels are straight. this way the electronic rack will remain energized and hold the wheels steady in the straight forward position. of course there are some unknowns... will the system go into fail safe if the rear steering angle reports the slightest deviation? if so, we may have to cut that signal as well. i'll just have to do a lot of testing. i cannot find any factory service guide for the 4th gen 4ws boards or even datasheets for those old chips. its starting to look like this is going to be an external modification which is good! and chances are, it'll work on both 4th and 5th gens no problem.

update***
just spent wayyy too much time on google.co.jp with page translation turned on and a online translation service to translate my search queries but i came up with this and the rest of 4ws schematics from the Japanese 96-01 prelude!

[nucleustylzlude]

i really appreciate your responses guys! nucleustylzlude, if you could look for me and possibly scan all the 5th gen 4ws pages throughout the different sections, all the reset procedures, wiring diagrams, and system descriptions. i would be so grateful! i'd be willing to pay if that would motivate you since i know scanning pages is a very boring task in fact, if you wanted i would be more than happy to scan the whole manual to a pdf so everyone could benefit but i guess you'd have to trust me and that's up to you lol. i'd pay the shipping and ship it back when done!

I'd love to help, but as I stated I have the '99 supplement manual, not the main '97 one. I still have a look for you to see if there is any 4WS info. I'll look in a bit and get back to you on this thread.

Cheers,

Rob

[wurlycorner]

Sorry to threadjack, but seems like the best place to ask...

Anyone come across any 4th gen TCS schematics/fault finding guides by any chance???