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96 volvo 850R ABS Module wiring w/pics

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

This topic is in the MVS Volvo Repair Database » 96 Volvo 850 R ABS Module Wiring w/Pics
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Ben850
Posts: 1613
Joined: 8 September 2011
Year and Model: 1996 850 R Wagon
Location: Michigan
Been thanked: 7 times

Re: 96 volvo 850R ABS Module wiring w/pics

Post by Ben850 »

I'll drop in another and test continuity on the wiring while I'm in there.
1993 850 GLT , You wouldn't know it.
1996 850 Turbo Wagon White.
1995 T-5R Black. New work in progress.
1998 V70 XC Cross Country White.
1994 850 N/A Wagon Black.
1997 850 Sedan Black.
1996 850R Wagon White.
1997 850 Sedan Red ( not white or black!)

Ben850
Posts: 1613
Joined: 8 September 2011
Year and Model: 1996 850 R Wagon
Location: Michigan
Been thanked: 7 times

Post by Ben850 »

I looked closer at the wiring to the wheel sensor and noticed a splice like the one I had done to the severed right side last year.
I cut out the splice and re soldered the wires. The condition of the metal inside the casings seemed corroded and powdery.
Took it for a drive and it worked for a bit and then stopped again.

I bought some electric contact cleaner since I had just ran out of it. Removed the junction at the ABS module and sprayed the terminals of the harness liberally. Also blasted the pins at the module.

It is back to life for now so I'll take it to work tomorrow and see how it does.
1993 850 GLT , You wouldn't know it.
1996 850 Turbo Wagon White.
1995 T-5R Black. New work in progress.
1998 V70 XC Cross Country White.
1994 850 N/A Wagon Black.
1997 850 Sedan Black.
1996 850R Wagon White.
1997 850 Sedan Red ( not white or black!)

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phils94850
Posts: 1156
Joined: 11 July 2006
Year and Model: 2009 s60 turbo
Location: Indiana
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Post by phils94850 »

glad you got her fixed ben..
1996 Platinum Edition

Ben850
Posts: 1613
Joined: 8 September 2011
Year and Model: 1996 850 R Wagon
Location: Michigan
Been thanked: 7 times

Post by Ben850 »

phils94850 wrote:glad you got her fixed ben..
I wish I could say it was fixed though.

"Working", yes, but intermittent failures requiring turning the car off and restarting.
I did a bit of light reading last night. I forgot for a moment I have the service manual. I have boiled it down to a few possibilities I haven't yet checked.
This has been on the shelf here for a month or so. I forgot, These things are helpful.
This has been on the shelf here for a month or so. I forgot, These things are helpful.
440 Pages of light reading.
440 Pages of light reading.
Within 15 minutes of reading, I was amazed how much I had learned. I only have about 430 pages left to read and retain.

I will update with results.
1993 850 GLT , You wouldn't know it.
1996 850 Turbo Wagon White.
1995 T-5R Black. New work in progress.
1998 V70 XC Cross Country White.
1994 850 N/A Wagon Black.
1997 850 Sedan Black.
1996 850R Wagon White.
1997 850 Sedan Red ( not white or black!)

Matty Moo
Posts: 1810
Joined: 12 October 2008
Year and Model: 850, 1996
Location: Ann Arbor, MI
Has thanked: 1 time
Been thanked: 30 times

Post by Matty Moo »

You need to get that vag-com cable so you can use Vol-fcr.
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

Ben850
Posts: 1613
Joined: 8 September 2011
Year and Model: 1996 850 R Wagon
Location: Michigan
Been thanked: 7 times

Post by Ben850 »

Matty Moo wrote:You need to get that vag-com cable so you can use Vol-fcr.
That came in the mail two days ago.
I've been working non-stop the past two weeks and have had no time to do anything.

Sunday, everything should come together.

Have the VAG-COM.

Have Service manual.

Have software.

Spare parts, tools. I've got.

Some time to focus on the task at hand will be nice.
1993 850 GLT , You wouldn't know it.
1996 850 Turbo Wagon White.
1995 T-5R Black. New work in progress.
1998 V70 XC Cross Country White.
1994 850 N/A Wagon Black.
1997 850 Sedan Black.
1996 850R Wagon White.
1997 850 Sedan Red ( not white or black!)

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