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Annoying ABS..


fastasleep
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197/2000


Galant VR-4 org Post #: 992766 posted 05/12/11 06:50 PM     Remind Me!  Send Private Message   Edit Post      
I've had my ABS deactivated (unplugged big plug under the hood) for some time, but I was recently informed that I won't pass State Inspection with an ABS light on.

So,

1) I've heard there is a fuse I can pull. Will that turn off the light or do I have to manually pull the bulb from the gauge cluster? (I haven't ever done that before..)

2) How do I make sure the ABS sensor is within the correct tolerances? I just moved the sensor on the front passenger's side hub a little bit closer (this all started after I replaced the cv joint/axle on that side), but I still get grinding/pulsing when coming to a slow stop. I have even replaced the sensor on that side, but I still get the grinding/pulsing sound/feel.

Any suggestions?

Thanks in advance for the help,

Ben



Ben
197, Evo 3 Powered
Isaiah 43:4

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Galant VR-4 org Post #: 992776 posted 05/12/11 07:52 PM     Remind Me!  Send Private Message   Edit Post      
Pulling the bulb is very easy but not really the best way. The light will go off if you unplug the control unit in your trunk area. As long as you never want to use your ABS again, do a proper ABS delete with a non-abs proportioning valve and the 4 non-abs front brake lines. Remove the sensors. If you follow the wires, it's pretty easy to unplug and remove them. You can also remove the entire ABS wiring harness pretty easily - and it will be as if you never had it in the first place.



1990 Nordic Blue Galant GSX, A71 KG 372/1000
A72 KG 108/1000 & A72 BG 924/1000 - Both Rotted
93 Mirage, 92 TealSI AWD, 85 200sx, 87 Trans Am

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fastasleep
I love first-timers.
197/2000


Galant VR-4 org Post #: 992778 posted 05/12/11 08:04 PM     Remind Me!  Send Private Message   Edit Post      
I don't want to ever use the ABS again; however, I'm actually prepping the car to sell and top priority is for it to pass inspection, so unplugging the control unit it is! Where in the trunk is that guy?



Ben
197, Evo 3 Powered
Isaiah 43:4

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Galant VR-4 org Post #: 992780 posted 05/12/11 08:19 PM     Remind Me!  Send Private Message   Edit Post      
If memory serves it's near your antenna.



1990 Nordic Blue Galant GSX, A71 KG 372/1000
A72 KG 108/1000 & A72 BG 924/1000 - Both Rotted
93 Mirage, 92 TealSI AWD, 85 200sx, 87 Trans Am

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moduleunknown
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Galant VR-4 org Post #: 992782 posted 05/12/11 08:28 PM     Remind Me!  Send Private Message   Edit Post      
It's right by the motor for the antenna - driver's side of trunk.



'91 GVR4 777/2000

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fastasleep
I love first-timers.
197/2000


Galant VR-4 org Post #: 992797 posted 05/12/11 09:26 PM     Remind Me!  Send Private Message   Edit Post      
Hmmm, I guess I can't find it. I unplugged two things right around the antenna and the ABS light remained on. Anybody got a pic?



Ben
197, Evo 3 Powered
Isaiah 43:4

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donkeylips
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Galant VR-4 org Post #: 992800 posted 05/12/11 09:41 PM     Remind Me!  Send Private Message   Edit Post      




1990 Nordic Blue Galant GSX, A71 KG 372/1000
A72 KG 108/1000 & A72 BG 924/1000 - Both Rotted
93 Mirage, 92 TealSI AWD, 85 200sx, 87 Trans Am

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524of1000
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Galant VR-4 org Post #: 992807 posted 05/12/11 10:26 PM     Remind Me!  Send Private Message   Edit Post      
I removed the ABC computer and my light was still on as well. I ended up removing the bulb.



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fastasleep
I love first-timers.
197/2000


Galant VR-4 org Post #: 992966 posted 05/13/11 03:33 PM     Remind Me!  Send Private Message   Edit Post      
Can anyone confirm or deny that removing the ABS computer from the trunk will turn the ABS light off?



Ben
197, Evo 3 Powered
Isaiah 43:4

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JSchleim18
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Galant VR-4 org Post #: 992967 posted 05/13/11 03:35 PM     Remind Me!  Send Private Message   Edit Post      
Remove the fuse under the hood off the battery. It's the rectangular box with 4 fuses in it.



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jepherz Galant VR4.org Moderator
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Galant VR-4 org Post #: 992972 posted 05/13/11 05:06 PM     Remind Me!  Send Private Message   Edit Post      
Quoting fastasleep:

Can anyone confirm or deny that removing the ABS computer from the trunk will turn the ABS light off?




Pretty sure it has to. I'm not sure where else the CEL for ABS would possibly come from. In my '91 I know I don't have the ABS light on and I removed it all?



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Struc
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Galant VR-4 org Post #: 992977 posted 05/13/11 05:34 PM     Remind Me!  Send Private Message   Edit Post      
Quoting JSchleim18:

Remove the fuse under the hood off the battery. It's the rectangular box with 4 fuses in it.




Removing that fuse can cause wierd side effects. Car may idle really high until you coast down to 13mph. Not sure if it does it if you pull the ABS Computer fully and then pull the fuse, however.

Also, I wouldn't remove the sensors without blocking the holes in the rear. Just leave the sensors there and cut the wires.



Curt Shambeau
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Edited by Struc (05/13/11 05:35 PM)

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gtluke
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Galant VR-4 org Post #: 992978 posted 05/13/11 05:37 PM     Remind Me!  Send Private Message   Edit Post      
there is a series of 3 plugs under the hood on the drive side by the PS reservoir, unplug the middle one. Kills the abs and the light.



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fastasleep
I love first-timers.
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Galant VR-4 org Post #: 993004 posted 05/13/11 08:56 PM     Remind Me!  Send Private Message   Edit Post      
I've had the middle plug unplugged, which is why my ABS light is on in the first place. I'll give the fuse method a shot.



Ben
197, Evo 3 Powered
Isaiah 43:4

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fastasleep
I love first-timers.
197/2000


Galant VR-4 org Post #: 993084 posted 05/14/11 11:42 AM     Remind Me!  Send Private Message   Edit Post      
Is there a trick to removing the foremost ABS fuse from the cluster on the (+) batt. terminal? That thing does not want to come out..



Ben
197, Evo 3 Powered
Isaiah 43:4

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Galant VR-4 org Post #: 993092 posted 05/14/11 01:19 PM     Remind Me!  Send Private Message   Edit Post      
It's bolted in to the battery terminal fuse block.

Unclip the sides of the lower case and you will see the bolts



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fastasleep
I love first-timers.
197/2000


Galant VR-4 org Post #: 993133 posted 05/14/11 06:28 PM     Remind Me!  Send Private Message   Edit Post      
Thank you!

However, the ABS light remains on (ABS fuse removed and connector by the PS pump is unplugged)...

I suppose disconnecting the bulb is my last resort, save unplugging the control unit in the trunk.

Does anyone have the How To link handy for gauge cluster removal?

(ps. I discovered I just blew a t-bolt clamp. What are the odds of that?)



Ben
197, Evo 3 Powered
Isaiah 43:4


Edited by fastasleep (05/14/11 06:30 PM)

Posts: 1779 | From: Christiansburg, VA | Member Since: 01/14/05 | IP: (72.196.224.5) | Report this post to a Moderator

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Galant VR-4 org Post #: 993151 posted 05/14/11 08:36 PM     Remind Me!  Send Private Message   Edit Post      
Wait, so you didn't unplug the control unit in the trunk?

Isn't removal of the cluster just 2 screws to take the bezel off then 2 or 4 screws and the thing should just pull straight out.



1990 Nordic Blue Galant GSX, A71 KG 372/1000
A72 KG 108/1000 & A72 BG 924/1000 - Both Rotted
93 Mirage, 92 TealSI AWD, 85 200sx, 87 Trans Am

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cspetros
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Galant VR-4 org Post #: 993174 posted 05/15/11 01:13 AM     Remind Me!  Send Private Message   Edit Post      
The ABS lamp in the gauge panel has 2 paths to ground, one through the Hydraulic unit (relays and such in the engine bay), and one through the ABS control unit (in the trunk):

Click image to see full size. Pardon the crude arrows... (This is the same for both 1991 and 1992, by the way)


If something goes wrong with either of these, the light comes on. Maybe removing one without the other causes a fault in the one not removed, and causes the light to illuminate? It is most certain that if both connections were removed, the light would not come on... seeing as there would be nothing to switch it on.

The connector numbers are listed in the diagram, but I'm pretty sure that you know which ones they are.

Hope this helps!

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fastasleep
I love first-timers.
197/2000


Galant VR-4 org Post #: 997570 posted 06/06/11 08:53 AM     Remind Me!  Send Private Message   Edit Post      
Hey guys,

What are the tolerances for the ABS Sensor on the front passenger side? I've moved the thing near and far by sight a few times and my ABS still kicks in when it shouldn't, so I may have the opportunity for a shop to set it accurately. I just need to know the range/tolerance. Thanks!

Ben



Ben
197, Evo 3 Powered
Isaiah 43:4

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E39Alfa
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Galant VR-4 org Post #: 1247410 posted 10/03/19 08:09 AM     Remind Me!  Send Private Message   Edit Post      
Im having the same issue... did you ever figure this thing out?



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Galant VR-4 org Post #: 1247412 posted 10/03/19 10:27 AM     Remind Me!  Send Private Message   Edit Post      
Over 4 1/2 years since Ben logged on. Doubtful he will be answering this soon.



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E39Alfa
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Galant VR-4 org Post #: 1247506 posted 10/14/19 08:35 AM     Remind Me!  Send Private Message   Edit Post   
Well apparently I solve the issue by

1. Realigning the sensor (to no specific spec) I just eye balled it to where its close enough to where it wont touch the hub

2. Disconnect and reconnect the ABS ECU in the trunk.

3. Disconnect and reconnect middle plug (of the three) under the hood next to PS pump.

These steps seemed to have fix my issue with no more premature ABS being activated for normal braking and driving conditions. 🤷🏽‍♂️



88 JDM RHD GVR4 = Current
93 JDM RHD Mr2 Turbo = Current
TL-SH, G35s, IS300, Mx5 Turbo, TSX, TL-S, EVO8 = SOLD

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