850 ABS TRACS OFF

  • Thread starter Thread starter al porter
  • Start date Start date
A

al porter

I have a 1997 850 Wagon that after long trips at highway speed my ABS and
TRACS OFF lights come on. I know the abs is not working because I don't hear
ABS control module kick in when the car starts moving. The lights will
then stay on anywhere from a few days to a week. Then for no apparent reason
the lights will just go off and I can again hear the control module kick in
again and things are back to normal. Would anyone have an idea what's
causing the problem.

Thanks...AP
 
al porter said:
I have a 1997 850 Wagon that after long trips at highway speed my ABS and
TRACS OFF lights come on. I know the abs is not working because I don't hear
ABS control module kick in when the car starts moving. The lights will
then stay on anywhere from a few days to a week. Then for no apparent reason
the lights will just go off and I can again hear the control module kick in
again and things are back to normal. Would anyone have an idea what's
causing the problem.

Thanks...AP
Click to expand...

this might help:

http://home.earthlink.net/~vicrocha/Volvo_Parts/Volvo_V70_ABS.htm
 
al porter said:
I have a 1997 850 Wagon that after long trips at highway speed my ABS and
TRACS OFF lights come on. I know the abs is not working because I don't
hear ABS control module kick in when the car starts moving. The lights
will then stay on anywhere from a few days to a week. Then for no apparent
reason the lights will just go off and I can again hear the control module
kick in again and things are back to normal. Would anyone have an idea
what's causing the problem.

Thanks...AP
Click to expand...

A VERY common failure on 850s! Your ABS controller has almost surely
failed. Replacements from Volvo are around $500. You can read a little
more about it at:

http://www.volvospeed.com/Repair/abstrax.htm


Lots of folks have reported good results from having this guy repair their
units:

http://home.earthlink.net/~vicrocha/Volvo_Parts/Volvo_V70_ABS.htm



John
 
al porter said:
I have a 1997 850 Wagon that after long trips at highway speed my ABS and
TRACS OFF lights come on. I know the abs is not working because I don't hear
ABS control module kick in when the car starts moving. The lights will
then stay on anywhere from a few days to a week. Then for no apparent reason
the lights will just go off and I can again hear the control module kick in
again and things are back to normal. Would anyone have an idea what's
causing the problem.

Thanks...AP
Click to expand...
I had the Identical problem with my 97 850 don't ask why but I removed all
excess keys and fobs from my ignition keyring just kept the remote locking
fob and one house key plus ignition key. I have now had no abs or tracks
lights showing for 3 months. In fact everything is fine.
Hope this may help, it was definately cheaper for me than buying a new
module!
John Kelway
 
John said:
I had the Identical problem with my 97 850 don't ask why but I removed all
excess keys and fobs from my ignition keyring just kept the remote locking
fob and one house key plus ignition key. I have now had no abs or tracks
lights showing for 3 months. In fact everything is fine.
Hope this may help, it was definately cheaper for me than buying a new
module!
John Kelway
Click to expand...

There's another problem that turns the ABS and TRACS OFF lights on that
involves the ignition switch, this sounds like your problem. Usually
it's accompanied by a couple of other things (power mirrors, turn
signals, rear defogger) not working if the problem is with the ignition
switch. In your case, I'd change my ignition switch:

http://www.volvospeed.com/Repair/ignit_switch.htm

--
Mike F.
Thornhill (near Toronto), Ont.

NOTE: new address!!
Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)
 
Mike F said:
There's another problem that turns the ABS and TRACS OFF lights on that
involves the ignition switch, this sounds like your problem. Usually
it's accompanied by a couple of other things (power mirrors, turn
signals, rear defogger) not working if the problem is with the ignition
switch. In your case, I'd change my ignition switch:

http://www.volvospeed.com/Repair/ignit_switch.htm
Click to expand...

Hello Mike

What makes you think the problem is in the ignition switch rather then
control module or a sensor?

Thanks...Al
 
al said:
Hello Mike

What makes you think the problem is in the ignition switch rather then
control module or a sensor?

Thanks...Al
Click to expand...

In your case, I think it's the control unit. In John Kelway's case, I
think the problem was caused by the ignition switch. If your signal
lights work when the ABS/TRACS OFF lights are on, then the cause is not
the ignition switch.

--
Mike F.
Thornhill (near Toronto), Ont.

NOTE: new address!!
Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)
 
Mike F said:
In your case, I think it's the control unit. In John Kelway's case, I
think the problem was caused by the ignition switch. If your signal
lights work when the ABS/TRACS OFF lights are on, then the cause is not
the ignition switch.
Click to expand...

Thanks. I note what you say about the signal lights, but as the ABS/TRACS
lights have not come on since I removed my excess keys I am loath to tempt
faith!
John Kelway
 
John Kelway said:
I am loath to tempt faith!
John Kelway
Click to expand...


Replacing the ignition switch is very easy and the part is not expensive. I
think it cost me something like $50 from the dealer and it took me no more
than an hour to replace. Taking the extra keys and fobs off your key ring
is a good idea since I believe the extra weight is part of the problem.

Gus
 
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