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ABS controller revisited Topic is solved

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abscate
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Re: ABS controller revisited

Post by abscate » Thu Oct 13, 2016 4:22 pm

Yes you can, and you can do it from up top of the car! The connectors for the ABS sensors are in the engine compartment near the strut tubes. Resistance figures are on mattymoos website midwestabs.com
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Re: ABS controller revisited

Post by s70dean » Fri Oct 14, 2016 4:51 pm

Okay,,I already tested those sensors and they both came back as good sensors 1.3-1.35 ohms... never checked tone rings tho.

Now for an update
I received my Autel md802 today and after some fiddling and entering vehicle info (kinda disappointed that it was unable to read vin and grab vehicle info by itself and i had to manually input ALL that info) ANYWAYS and it was able to read the ABS codes.
(Rant mode on)
Another thing about this Autel MD802 that chaps my ass is that i was unable to clear the ABS codes,,unit read them fine and asked if i wanted to clear them.. I went thru the ritual of clearing them,,,,The orange skidding car flashed but they were not cleared :-(
(Rant mode OFF)
So here they are 5 codes in no particular order..
ABS 0011 & ABS 0021= these codes refer to faulty front L and R wheel sensors.
ABS 0092 & ABS 0093= these codes refer to faulty control module communication
and last ABS 0070= this one refers to ABS pump motor and it's high lighted with a red "PERMANENT FAULT"
So there ya go,,,please read this and give me my next course of action... My thoughts are to confirm that pump motor is good with some kind of test?
But other than that for me it's still pointing at the ABS controller.
Cheers
Dean

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Re: ABS controller revisited

Post by s70dean » Fri Oct 14, 2016 4:56 pm

Oh One last thing...along with reading ABS codes this Autel reads updated vehicle specific DTC's and what my old Autel thought was a P1551= "faulty barometric sensor" now comes up as 510f= "Vehicle speed sensor too high"

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Re: ABS controller revisited  Topic is solved

Post by Matty Moo » Fri Oct 14, 2016 7:50 pm

s70dean wrote:Okay,,I already tested those sensors and they both came back as good sensors 1.3-1.35 ohms... never checked tone rings tho.

Now for an update
I received my Autel md802 today and after some fiddling and entering vehicle info (kinda disappointed that it was unable to read vin and grab vehicle info by itself and i had to manually input ALL that info) ANYWAYS and it was able to read the ABS codes.
(Rant mode on)
Another thing about this Autel MD802 that chaps my ass is that i was unable to clear the ABS codes,,unit read them fine and asked if i wanted to clear them.. I went thru the ritual of clearing them,,,,The orange skidding car flashed but they were not cleared :-(
(Rant mode OFF)
So here they are 5 codes in no particular order..
ABS 0011 & ABS 0021= these codes refer to faulty front L and R wheel sensors.
ABS 0092 & ABS 0093= these codes refer to faulty control module communication
and last ABS 0070= this one refers to ABS pump motor and it's high lighted with a red "PERMANENT FAULT"
So there ya go,,,please read this and give me my next course of action... My thoughts are to confirm that pump motor is good with some kind of test?
But other than that for me it's still pointing at the ABS controller.
Cheers
Dean
You can't clear active faults.
Image
http://www.midwest-abs.com
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abscate
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abscate

Re: ABS controller revisited

Post by abscate » Sat Oct 15, 2016 5:52 am

The 800 series will definitely clear ABS codes on a 1999 in my direct experience

Time to send your unit to Matty.

I think I can remember one ABS pump failure in the history of this board
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Re: ABS controller revisited

Post by s70dean » Wed Oct 26, 2016 4:41 pm

This is the final update to this thread as the problem is now solved :-)
So after testing sensors and buying a new code reader with ABS capabilities in order to communicate with ABS controller. But unable to clear codes and a laundry list of faults i was certain the controller was still the problem.
After pleading with the local Volvo tech that rebuilt my controller initially that he needed to do something he finally coughed up another rebuilt control module.
I installed it and and was able to clear existing codes and went for a test drive. I was pleased to see the dash ABS/warning lights were completely off but that would not last long,, to my horror the speedo was struggling to function smoothly and soon the dash would light up once again:-(
So reading the codes once again would produce right front and left front wheel sensor faults. Before calling my Volvo Tech in anger I decided to inspect and clean the senors and tone rings...Actually I thought the rings looked pretty good with very little rust but i removed/cleaned the sensors and blew out the rings with compressed air.
With everything reassembled and codes cleared once again I headed out for a test drive.
This time everything worked like a charm with the speedo working smoothly and Odometer registering and most important a dash void of any warning lamps:-)
Hopefully this helps someone in the quest for no dash lights.

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Re: ABS controller revisited

Post by bmdubya1198 » Wed Oct 26, 2016 4:44 pm

Glad to hear! Thanks for updating us and not leaving everyone hanging!
2000 V70R Venetian Red/Charcoal M56 Swapped 197k
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