Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

Rear wheel speed sensors?

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Old 09-05-2014, 07:39 PM
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Default Rear wheel speed sensors?

I have a code for a bad rear wheel speed sensor. It looks like you have to buy both. What kind of a project is the replacement and where is the connector for the wiring harness? The manual doesn't say a lot about this.
 
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Old 09-05-2014, 08:51 PM
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I bet its the ABS control module and not a sensor at all. Is it for the right rear?
 
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Old 09-05-2014, 11:54 PM
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Originally Posted by ES6T
I bet its the ABS control module and not a sensor at all. Is it for the right rear?
Left rear
 
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Old 09-06-2014, 12:04 AM
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Yeah, you are not alone. My ABS is also on and throwing my TRAC as well. I bought one speed sensor and I am probably just going to take a look at all of them and see the condition they are in. Sadly though he has a point. Most of the time it is the actual ABS module. The solder points become brittle and break. Since I intend to keep my T-5R for life, I will be fixing that as well!!
 
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Old 09-06-2014, 12:46 AM
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I've been working on Volvos for a long time and have only done maybe 3 wheel speed sensors. Each was physically damaged.
 
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Old 09-08-2014, 08:13 PM
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Originally Posted by H0lD mY d6InK
Yeah, you are not alone. My ABS is also on and throwing my TRAC as well. I bought one speed sensor and I am probably just going to take a look at all of them and see the condition they are in. Sadly though he has a point. Most of the time it is the actual ABS module. The solder points become brittle and break. Since I intend to keep my T-5R for life, I will be fixing that as well!!
Has anyone tried re soldering the points?
 
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Old 09-09-2014, 01:30 AM
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Oh yeah, rspi for one


There is also another person on another volvo forum that has made a little business out of it. I am sure someone else knows who I am talking about. I randomly stumbled upon a link to his website a short while ago.
 
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Old 09-11-2014, 09:57 PM
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I have tried to fix the Volvo modules a few times to no avail. I just send them to www.Midwest-ABS.com.
 
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Old 09-12-2014, 08:03 PM
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Originally Posted by rspi
I have tried to fix the Volvo modules a few times to no avail. I just send them to www.Midwest-ABS.com.
After looking at the web site I think that's what I'll do. The price for one repaired the right way is to good to pass up.
 
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Old 09-22-2014, 07:54 PM
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I just heard back from Mat at MidwestABS and the ones he carries won't work on a 95, they only start at 96.
 
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