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Old 12-20-2013, 10:12 PM   #1
BenMc
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Member#: 350419
Join Date: Mar 2013
Chapter/Region: South East
Location: Cornelius NC
Vehicle:
2004 WRX STI
WRB

Default Need some DCCD info when ABS is not working

Hey guys, my ABS light came on today in my '04 STI with no warning and obviously now my DCCD is not controllable. I have searched and have found many different things. Mainly people have said that the DCCD reverts to full lock without ABS, however some have said that it goes to full open, and some have said that it stays where it was (AUTO in this case).

Anyways I believe it goes to full lock, and I was wondering if anyone could confirm that for me. If so then I believe I have a problem. This is bad timing for me because I am about to drive from NC to NY, stay there a week or so and then drive back. I was wondering if doing all of that in full lock would damage the drivetrain at all (maybe the clutches in the center diff)? Is it true that if I pull the handbrake up so the light comes on but the parking brake doesn't engage, the DCCD will go to full open? And if so would that be a good idea for the long trip from here to NY or when driving on dry roads? Obviously the best idea would be to get it fixed but I don't have the time to do it or get it done before I leave.

Sorry for the wall of text and hopefully you guys can help me out! I definitely searched but there are threads that say the complete opposite if other threads. Also it is a 2004 so I pulled the ABS codes using the connector under the dash and I believe (a little hard to follow the blinking lights) I got 44 – A combination of AT control abnormal, 21 – front right ABS sensor, 56 – Abnormal G sensor output voltage. So if anyone wants to offer their input on what the ABS problem might be that would be great! However I can live without ABS, I just don't want to damage the drivetrain. Thanks so much!
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Last edited by BenMc; 12-20-2013 at 10:34 PM.
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Old 12-20-2013, 10:14 PM   #2
murrdogg24
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04 WRX
Flappy bird edition

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if it was in full lock you could just disconnect the dccd and it would be in open..
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Old 12-20-2013, 10:33 PM   #3
BenMc
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Location: Cornelius NC
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2004 WRX STI
WRB

Default

^ Hmm interesting, if that is true then I would assume that right now with the ABS not working the DCCD would also be in open, correct? There is a lot of conflicting information on that subject it seems.

Also I should say that my DCCD green light is not blinking like most people have when it goes into fail safe mode. The only light is the red DCCD. The auto and other positions do not light up.
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Old 12-20-2013, 11:01 PM   #4
murrdogg24
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if it was in full lock you would know it, you can feel the binding in the steering wheel while making turns.
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Old 12-21-2013, 01:34 PM   #5
point78
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Dccd's default to open.
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Old 12-21-2013, 02:07 PM   #6
Back Road Runner
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Step 1: check fuse.

Seems goofy for many things to go. For the age of the car, my first check would be electrical.
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Old 12-21-2013, 02:37 PM   #7
BenMc
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WRB

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Alright thanks guys, so am I correct in that there is no downfall to driving in open other than the fact that it won't be great in the snow and may be more prone to oversteer?

And yes I checked all the fuses, everything reads 12 volts with a multimeter and I swapped the ABS relay with another one and the problem still exists unfortunately Although you may be correct, I'm trying to dig up an ABS schematic and see if maybe there is an open somewhere and it's just not getting power. Maybe I should figure out how many volts I should be getting at the abs module in the engine compartment?

Thanks for the replies guys keep them coming!
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Old 12-21-2013, 03:59 PM   #8
booneiam
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Is your hand break light on too? Have you checked the brake fluid level? Maybe something with the amount of fluid is making the abs act up? Just a long shot but worth a look
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Old 12-21-2013, 05:56 PM   #9
BenMc
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WRB

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Nope the handbrake light is not on. And brake fluid is good.

I cleaned the right front abs sensor today because that was one of my codes and that cleared code 21 and code 56. Now I just have 44-A combination of AT control abnormal. I guess this is becoming more of a brake thread than a transmission thread now. But if anyone has had any experience with this code 44 I would love some help
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Old 01-07-2014, 10:05 AM   #10
GTR Fever
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I would lke some help with the same code....code 44 in a 2003 WRX

Hope it's an easy fix
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