Jump to content


Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse
 

Photo
- - - - -

Centre diff lock on AWD auto


  • Please log in to reply
175 replies to this topic

#101 Andyjo

Andyjo

    I'm Not Austin!

  • Members
  • 1,808 posts
  • Windham NH

Posted 24 December 2005 - 06:34 PM

I'm not abusive to this thing, and don't baby it either - I pretty much drive it like it was intended to be driven, but at this point I'm comfortable saying that this '02 OBS is a piece of crap. It's been a big dissapointment and IS the reason why I own a second car.

Congrads blitz, you got post #100 on this crazy topic.

just curious, what makes the 02' worse than the 00' ?

On a note related to the topic, i believe i have found the currect bundle of wires, coming out of the tranny, but i have to find my voltmeter to test the prongs w/ stuff...

#102 blitz

blitz

    Banned

  • Banned
  • 1,091 posts
  • Warren, Michigan

Posted 24 December 2005 - 07:43 PM

Congrads blitz, you got post #100 on this crazy topic.

LOL, the thread that won't die.

just curious, what makes the 02' worse than the 00' ?

'02 55k miles

So far:
----------------
Steering rattle noise when entering driveways.
Suspension clunk after making left turn.
Numerous dash rattles.
Seat rattle. (fixed)
Door rattle. (fixed)
Rattling heat shields. (rigged)
Spark knock. (rigged)
Piston slap.
Oil leaking from cam cover.
Oil leaking front transaxle halfshafts.
Oil leaking from A/C compressor.
Bubbles and black flakes in coolant overflow tank.
Harsh rear clutch engagement.

I bought the '00 used with the crap pretty much beat out of it and it seems to be holding up better than the '02. I don't know if '02 was just a bad year or I just got a lemon. This is the only new or newish car that's done ever this to me.

On a note related to the topic, i believe i have found the currect bundle of wires, coming out of the tranny, but i have to find my voltmeter to test the prongs w/ stuff...

Cool, soon I'll be able to "rig" the harsh rear engagement. :rolleyes:

#103 scoobyclimbs

scoobyclimbs

    Attack of the madaxeman..

  • Members
  • 862 posts
  • Newberg

Posted 26 December 2005 - 10:49 AM

I just read on the Rallitek forums that they are making a switch for the automatics!!! WAHOO!!! WITH A 50/50 SPLIT!

I'm gettin one!

#104 WoodsWagon

WoodsWagon

    Formerly 91Loyale

  • Members
  • 3,946 posts
  • NH

Posted 26 December 2005 - 03:44 PM

And how much are they charging? $10 and a little time could do the job just as well.

#105 grossgary

grossgary

    Elite Master of the Subaru

  • Members
  • 20,059 posts
  • WV

Posted 26 December 2005 - 06:19 PM

radio shack sells the switch i used. like he said...a few minutes and i was done. works perfect "50/50" split. i'm confused why people aren't just doing this instead of poking around the internet, looking for more options and gizmos. a switch and cutting one wire is easy. this thread is crazy long for one switch.

#106 Andyjo

Andyjo

    I'm Not Austin!

  • Members
  • 1,808 posts
  • Windham NH

Posted 26 December 2005 - 09:37 PM

finding the wire is the hard part... i haven't gotten around to playing with it anymore, i got a little excited about building my snorkle :brow:
If i finnish that up tomorrow, i'll try to do it up hard core.

#107 Mike W

Mike W

    .

  • Members
  • 704 posts
  • Seattle

Posted 27 December 2005 - 03:36 PM

Finding the Sol C wire...
According to urban_sub in this thread:
"The connector is just under the hood over the torque converter housing. There are two found in this area -its the one closest to the driver side. It is a 16 contact connector in a 4X4 configuration. To test solenoid C (AWD) electrically, place an ohmmeter between pins 4 and 11 on the connector half going to the transmission. Looking at the contact side of the connector and the locking tab facing up, the pin numbering will start 1 on the upper right corner going left and down. So 4 will be on the upper left corner and 11 will be the third row, second from the left. This should show 9-17 ohms if solenoid windings haven't burned or wire connection hasn't been severed."

Edit: I just tested mine. Yes Solinoid C is indeed pins 4 & 11. This is on a '97 Legacy trans in a '93 car. I got 12 ohms at the pins on the trans harness and also got 12 ohms when I tested Solinoid C in a spare rear extension housing I have sitting here. So has anyone made progress building a fancy adjustable diff lock switch like those guys made for their Foresters?

At the moment I'd be happy to just get my car out of full AWD. For some reason the TCU wants to engage the rear drive all the time. Has me stumped...time to get the codes read and see if Smart Service can figure out what it's deal is.

#108 Andyjo

Andyjo

    I'm Not Austin!

  • Members
  • 1,808 posts
  • Windham NH

Posted 28 December 2005 - 06:27 PM

I DID IT! IT WORKS! WOOHOO!!
i got pictures & everything, i'll get those up in a bit, i just spliced into the wire, threw it on a switch, did some circles in a parking lot w/ AWD, it was fine, did it w/ 4WD and man was it pissed off, hopping all over the place.
I did an ice test too, the rear wheels spin out much quicker w/ 4wd on :headbang:

#109 grossgary

grossgary

    Elite Master of the Subaru

  • Members
  • 20,059 posts
  • WV

Posted 28 December 2005 - 06:31 PM

excellent, nice job hotdog. 'bout time someone else just went in there and did it. it is aweomse isn't it? i said in my first post to this thread that it's one of the best modifications you can do to an AWD Auto subaru. it rocks indeed. and it's super easy. i thought people would jump all over this.

#110 Andyjo

Andyjo

    I'm Not Austin!

  • Members
  • 1,808 posts
  • Windham NH

Posted 28 December 2005 - 07:08 PM

So here goes, the first task was to find the damn wire. I did it on my Impreza (obs), the two connections spoken of are located below the airbox, and a pain to get to. There are two connectors down there, the one we're looking for was the one in the front/drivers side (it's sort of at an angle), i used a screw driver to pop the connector off the frame and have better access to it. Then i figured out the orientation and tested pin 4 and 11, and bingo! 13ohms! pin 4 is GROUND, 11 is the solenoid. I figured out which wire was which i ran up to radio shack, and grabbed a switch, came back and dropped the wire bundle down under the car (car on ramps), there's alot more room to work down there than there is in the engine compartment. My soleniod wire (pin 11) was brown, i chopped it, and spliced 2 wires to those segments and ran that up into the car where i wired the switch up. I got a the wrong switch, but it still worked, i got a STDP (single throw, double pole), center off (oops). I wired that sucker up and gave it a go. If you start the car in 4wd mode the 'AT OIL TEMP' light will flash at you alot, so don't do that.
And here are the pics!
Passenger side looking at wires
Posted Image

Drivers side, the wires
Posted Image

The Pins
Posted Image

Ohmage of pins 4 and 11
Posted Image

Splice into those wires
Posted Image

Cover up those exposed wires
Posted Image

mount that switch right up somewhere...
Posted Image

#111 Storydude1

Storydude1

    USMB is life!

  • Members
  • 167 posts
  • NW AZ

Posted 28 December 2005 - 07:18 PM

So, no service lights UNLESS you start it with the switch on.

Just looking for clarification on that, because of the Inspection Nazi's here in NY. If they find ANY code, boom, you FAIL.

Here in Buffalo(Land of the neverending winter) a Mod like that could be VERY helpful.

Again, just looking for clarification.

#112 Andyjo

Andyjo

    I'm Not Austin!

  • Members
  • 1,808 posts
  • Windham NH

Posted 28 December 2005 - 07:28 PM

So, no service lights UNLESS you start it with the switch on.

Just looking for clarification on that, because of the Inspection Nazi's here in NY. If they find ANY code, boom, you FAIL.

Here in Buffalo(Land of the neverending winter) a Mod like that could be VERY helpful.

Again, just looking for clarification.

I dont see any other lights on, no CEL came on, just the flashing AT OIL TEMP when 4wd was on, and if you start the car in AWD, and then switch to 4WD, no lights. I don't have a code scanner to test for 'hidden codes' (my fuel temp sensor is there, but no light).

#113 Storydude1

Storydude1

    USMB is life!

  • Members
  • 167 posts
  • NW AZ

Posted 28 December 2005 - 07:30 PM

I dont see any other lights on, no CEL came on, just the flashing AT OIL TEMP when 4wd was on, and if you start the car in AWD, and then switch to 4WD, no lights. I don't have a code scanner to test for 'hidden codes' (my fuel temp sensor is there, but no light).

Thank ya thank ya.

Now, to convince the old lady that she NEEDS this.... :clap:

#114 Andyjo

Andyjo

    I'm Not Austin!

  • Members
  • 1,808 posts
  • Windham NH

Posted 28 December 2005 - 11:45 PM

it's a saftey feature! I want to head over to the junkyard and grab a push button 4x4 button, to make it really HOTT! :grin:

#115 grossgary

grossgary

    Elite Master of the Subaru

  • Members
  • 20,059 posts
  • WV

Posted 28 December 2005 - 11:48 PM

grab a push button 4x4 button, to make it really HOTT!


great idea hotdog, i never though of that. are the buttons on the shift lever?

#116 Andyjo

Andyjo

    I'm Not Austin!

  • Members
  • 1,808 posts
  • Windham NH

Posted 28 December 2005 - 11:54 PM

great idea hotdog, i never though of that. are the buttons on the shift lever?

my dad's blazer has buttons! :grin:
It's got 2HI, 4HI, 4LO
i'd rig 4HI to be AWD

oh yeah, why is my name hotdog!?!? :confused:

#117 1 Lucky Texan

1 Lucky Texan

    I read a lot about Subarus

  • Gold Subscribers
  • 4,978 posts
  • Texas

Posted 29 December 2005 - 01:19 AM

I think this would be a good mod for re-wiring that parking light switch on top of the steering column. Much more useful and no need for a new hole in the dash.

#118 Andyjo

Andyjo

    I'm Not Austin!

  • Members
  • 1,808 posts
  • Windham NH

Posted 29 December 2005 - 01:22 AM

I think this would be a good mod for re-wiring that parking light switch on top of the steering column. Much more useful and no need for a new hole in the dash.

ohhh... that's a good idea, you're a smart one! i think i'll see if i can rig that, the thing is i don't know if that switch is a single throw double pole... i guess i could rig a relay in there to make it work :grin: I'll get back to you on that one if i get it working.

Edit: oh yeah, i forgot, there is not enough current coming from the TCU to do anything with... no lighting a bulb or anything, it's a VERY low current 12v signal that controls the solenoid, so i don't think a resistor would be needed... eh

Edit #2: Wait a minute, if there's not much current going through, i don't need to have the resistors on there (there isn't anything currently, so i don't need the double pole switch, meaning i COULD rig it to the parking light switch
WHOAH!

#119 blitz

blitz

    Banned

  • Banned
  • 1,091 posts
  • Warren, Michigan

Posted 29 December 2005 - 07:04 AM

Andy, thanks for the photos. Hey, substitute the SPDT /center off, with a DPDT /center off, and use the unused throw to "put the FWD fuse in".

oh yeah, why is my name hotdog!?!? :confused:

psst... when you're square over your target, you pick up flak. Jabs and insults are the second most sincere form of flattery. Consider them a reliable measure of success.

#120 grossgary

grossgary

    Elite Master of the Subaru

  • Members
  • 20,059 posts
  • WV

Posted 29 December 2005 - 06:54 PM

oh yeah, why is my name hotdog!?!? :confused:


i call everyone that, even my wife and mom...."dude" gets old.

psst... when you're square over your target, you pick up flak. Jabs and insults are the second most sincere form of flattery. Consider them a reliable measure of success.


jabs and insults? no way, i'm stoked he got it!

look forward to hearing some post-snow commentary HOTDOG!!!

#121 operose

operose

    1000+ Super USER!

  • Members
  • 1,264 posts
  • Potsdam

Posted 29 December 2005 - 09:25 PM

i call everyone that, even my wife and mom...."dude" gets old.



jabs and insults? no way, i'm stoked he got it!

look forward to hearing some post-snow commentary HOTDOG!!!



hell yes!!! how come I never did this to the legacy I wonder? knew gary had done it before, just wasn't thinking...

this weekend there will be one more 4wd "new gen" running around...

#122 Fatz

Fatz

    USMB Regular

  • Members
  • PipPipPip
  • 85 posts
  • Burnie, Tasmania

Posted 30 December 2005 - 02:37 AM

Andyjo: Thankyou very much for that step through, i did the same, i checked pin 11, and i got 14 ohms, so i still spliced and splined and all that, turns out that my TT gearbox doesnt have centre diff lock, it was "hold" so i was driving around takin off in 2nd gear, also the revs where alot higher too.
So im a bit bummed out at the moment that it didnt work, but at least i gave it a go....
Thanx all for your help.
Adam

#123 blitz

blitz

    Banned

  • Banned
  • 1,091 posts
  • Warren, Michigan

Posted 30 December 2005 - 07:32 AM

jabs and insults? no way, i'm stoked he got it!

Alright hotdog. :-p

I seek to elicit "jabs and insults" on a regular basis. :D

#124 nipper

nipper

    Semi Elite Master of the

  • Members
  • 17,624 posts
  • Long Island NY

Posted 30 December 2005 - 06:03 PM

http://endwrench.com...s/pdfs/4EAT.pdf

from another thread, very interesting
The awd does vary between 10-50% (though it doesn say that outright)

nipper

#125 grossgary

grossgary

    Elite Master of the Subaru

  • Members
  • 20,059 posts
  • WV

Posted 31 December 2005 - 01:45 PM

tell us what model/year/trans/motor you have.
in the end we might be able to start a thread with model/year/trans specific pin-outs for the duty solenoid C. we have two transmissions nailed down, shouldn't be too many 4EAT differences across year.

Andyjo: Thankyou very much for that step through, i did the same, i checked pin 11, and i got 14 ohms, so i still spliced and splined and all that, turns out that my TT gearbox doesnt have centre diff lock, it was "hold" so i was driving around takin off in 2nd gear, also the revs where alot higher too.
So im a bit bummed out at the moment that it didnt work, but at least i gave it a go....
Thanx all for your help.
Adam


tell us what model/year/trans/motor you have.
in the end we might be able to start a thread with model/year/trans specific pin-outs for the duty solenoid C. we have two transmissions nailed down, shouldn't be too many 4EAT differences across year.




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users