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ABS Module Repair

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

Wrenchinjoe
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Joined: Fri May 15, 2009 10:38 am
Year and Model: V70 1999
Location: Knoxville, TN
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Wrenchinjoe

ABS Module Repair

Post by Wrenchinjoe » Mon Sep 20, 2010 9:50 am

Over the past month or so the ABS light, the Brake light and the CEL were coming on, and the shift arrow would flash in my '99 V70. When this would happen the speedometer and odometer would shut down as well. My code scanner showed code P0600 - a general communication error, P0722 and P1057 which appear to be related to speed sensor errors. I spent about 15 minutes researching the problem here on MVS and very quickly found that these symptoms result from a failing ABS module.

I read Ozark Lee's write up about repairing the module myself, and although the soldering part of it was not intimidating, I was concerned about hacking into the plastic cover of the module. (After all, Volvo's are not exactly known for their superior plastics ;) )

I pulled the module off the car and mailed to Matt (MattyMoo here on MVS) and he repaired my module. He was professional, prompt and communicative. Matt made the repairs the same day he received my module and mailed it back out the next day. Shipping took 2 days each direction. The module arrived clean and neatly sealed. I installed the module back on the car yesterday and it works like a charm. No more dash lights!

Just wanted to give Matt some props. Apparently this is a common problem but the solution is really simple. Matt can get you back on the road professionally, he is reasonably priced and he stands behind his work.

Cheers,

WJ


Base model V70, Silver Sand Metallic, vinyl seats, 132K miles, IPD HD spring seats

VolvoTurbo850
Posts: 405
Joined: Mon Apr 26, 2010 10:12 pm
Year and Model: 1994 850 (T5)
Location: Toronto, Canada
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VolvoTurbo850

Re: ABS Module Repair

Post by VolvoTurbo850 » Mon Sep 20, 2010 12:37 pm

I just had mine done though Victor Rocha and have had similar success and experience. I have had it installed for one week and it works. Guess we should report back after a few years to see how it holds up!



The Fleet

2001 V70 (NA) 2.5
1999 C70 Conv. Turbo 2.3 HPT
1998 S70 Turbo (T5) SE
1994 850 Turbo (T5)
1980 Corvette (Corvolvo)

Previous Possessions: (4) 240's, (1) 740, (9) 850's, (5) 70 Series
Projects on the go: NONE... Yet!

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jreed
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Joined: Sun Mar 08, 2009 5:43 am
Year and Model: '97 Volvo 855 GLT
Location: RTP, North Carolina
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United States of America
jreed

Re: ABS Module Repair

Post by jreed » Mon Sep 20, 2010 6:31 pm

I had Vic Rocha do mine ('97 855 GLT) in 2005 at ~70K and it's still going strong at 141K miles today. :)


1997 855 GLT (Light Pressure Turbo) still going strong. Previous: 1986 240 GL rusted out in '06, 1985 Saab 900T rusted out in '95, 1975 Saab 99 rusted out in '95, 1973 Saab 99 rusted out in '94

GoinFor300KMi
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Year and Model: 1996 Volvo 850 N/A
Location: Massachusetts
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GoinFor300KMi

Re: ABS Module Repair

Post by GoinFor300KMi » Mon Sep 20, 2010 6:55 pm

I just bought a replacement ABS module from Matty Moo - the experience was 100% positive. The new module works fine. This is the kind of repair where it's worth it to pay the economical price to avoid the rebuild time and risk.



thecheat
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Year and Model: 1996 850 Turbo Wagon
Location: Sunrise, FL
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thecheat

Re: ABS Module Repair

Post by thecheat » Mon Sep 20, 2010 7:31 pm

Agreed. If you aren't 100% sure of your skills sawing the top of the case off and resoldering the pins, send the module out for repair.

I did my own and can say that it isn't for everyone.

I'm not sure if the rebuilders do it but maybe try to get an advance exchange of the good part and send your old one after the fact. If you have big hands like me, you only want to do the removal and reinstallation in one sitting.



VolvoTurbo850
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VolvoTurbo850

Re: ABS Module Repair

Post by VolvoTurbo850 » Mon Sep 20, 2010 7:54 pm

Agreed! I was told that my circuit board was broken.. so I know that i cannot repair that .. and for under 200 bucks including shipping is a good deal in my estimation.



The Fleet

2001 V70 (NA) 2.5
1999 C70 Conv. Turbo 2.3 HPT
1998 S70 Turbo (T5) SE
1994 850 Turbo (T5)
1980 Corvette (Corvolvo)

Previous Possessions: (4) 240's, (1) 740, (9) 850's, (5) 70 Series
Projects on the go: NONE... Yet!

Matty Moo
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Year and Model: 850, 1996
Location: Ann Arbor, MI
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Matty Moo

Re: ABS Module Repair

Post by Matty Moo » Mon Sep 20, 2010 8:28 pm

Thanks for the positive feedback guys, I really appreciate that. People like the price and the fact that the module comes to you, so no need to drive without one there. When I started doing this, I quickly realized why I was one of the few doing it this way, but the rare headaches are worth it. MVS people have been great to deal with too, I haven't had to remind a single MVS member to send one back. We have a good crowd here.

VolvoTurbo850 wrote:Agreed! I was told that my circuit board was broken.. so I know that i cannot repair that .. and for under 200 bucks including shipping is a good deal in my estimation.
Who told you that? I've seen one burned up, but never broken. The units themselves are incredibly sturdy, with the exception of the pins.


Image
http://www.midwest-abs.com
Simplycleanpowerwash.com

1996 850 Platinum Wagon. ARD Green Tune, OBX.-Gone
1998 s70 ARD tune, EST exhaust, SE/R interior.
1999 s70 Plain Jane.
2000 s70 GLT
2014 Ram
2012 Jeep Wrangler Unlimited

V850B5254T
Posts: 52
Joined: Sat Oct 03, 2009 11:09 am
Year and Model: 2007 V70T aut
Location: Denmark
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Denmark
V850B5254T

Re: ABS Module Repair

Post by V850B5254T » Tue Sep 21, 2010 4:17 am

The ABS module circuit board is made from several layers of glass fibre bonded together with a high quality resin, - like the hull of a boat, just with a higher strength and of a better quality. Breaking a circuit board will take a major traffic accident or a hammer and you may not succeed breaking it with the first blow.
However, de-lamination can occur if the circuit board has been exposed to excessive temperature for a prolonged time. Still the boards have to withstand +300°C for at least 10sec during soldering.

oakey


Now:
Volvo 850T stc 1996
Volvo 940T stc 1998

Before:
Volvo 850 stc 1994
Volvo 240 stc 1988
Volvo 240 van 1981
Ford Granada Van 1973
Renault 4L 1969
VW T2 1970
Morris Mascot 1970
Renault 4L 1962

cgreygoose
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Joined: Sat Jan 29, 2011 7:21 pm
Year and Model: 99 V70, 90 240DL
Location: USA
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cgreygoose

Re: ABS Module Repair

Post by cgreygoose » Thu Mar 03, 2011 11:15 am

I've pulled the ABS module on my wife's 99 V70, per one of the posts on this forum, a Volvo 96 850 I think. Obviously, mine looks different than the one shown on the other post but I can't seem to locate what parts of the board need to be re-soddered. I'm assuming like the other diagrams that the area to be fixed is the right side of this module, As pictured in this post it would be the bottom area from left to right. I dont' see any area's that need redone but If I can get confirmation as to where to repair this ABS module that would be appreciated as my wife needs this fixed. thanks,
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