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anti skid service required message...

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Old Feb 21st, 2020, 18:32   #1
stegreg
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Default anti skid service required message...

2003 V70 awd, geartronic. 166,000 miles. been having this error message intermittently for a couple of months, sometimes on for 1 journey, next journey...no message...sometimes message on for a weeks driving, then off again.
ive checked for errors on vida and come up with these:
bcm-0094 communication problems with dem.

is there any specific module I should be testing further with vida?
is it possible it could just be water on connections on the rear diff cable connectors?
im new to using vida for diagnostics so any guidance to help trace the fault would be appreciated
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Old Feb 22nd, 2020, 18:57   #2
volvo for ever
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there are 2 plugs t the dem you need to check if your getting 12v feed .earth and can high and can low

using vida go into network is the dem in red if so its of the network
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Old Feb 22nd, 2020, 19:11   #3
stegreg
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Quote:
Originally Posted by volvo for ever View Post
there are 2 plugs t the dem you need to check if your getting 12v feed .earth and can high and can low

using vida go into network is the dem in red if so its of the network

Thanks for your response. Im hoping [weather permitting" to have another go with my Vida system on Sunday, so can get back to you with any info I can on your suggestions.

is it possible to check "can high/low" with vida? if the weather is dry enough was going to lift the back of the car up and check the rear dem connectors for both security and corrosion and will now also check for power. its just strange the way it can work intermittently, its almost saying "dicky connector"...just a case of finding which one unless there is any commonality if this type of error.
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Old Mar 7th, 2020, 19:35   #4
volvo for ever
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If it's intermittent then no need to check can wires poor connection possibly

Regards
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Old Mar 7th, 2020, 21:40   #5
stegreg
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Thanks for reply, but any ideas as to where these connections may be "dicky".

In the meantime, since starting this thread. the car came up with a message on cold start up : "Anti skid temporarily turned off", then after engine fired, the message cleared and the anti skid warning and triangle stayed off for 3 days. then, again, one morning, on cold start, "just as the glow plug light went out, prior to starting "anti skid service required" and has now been same for 4 days again. warning still on ?
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Old Apr 30th, 2020, 17:14   #6
stegreg
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sorry for delay in update, but I work within NHS, so hope you can appreciate, we've been a little busy for a while.

so annual leave today and done another vida diag:

it seems the "SAS" is not communicating: [steering. angle. sensor]
I did a live test and can see the micro switches switching on/off as I slowly rotate the steering wheel, but 4 of the other signals are just saying "off",
tried another reset, to no avail, ive manually checked all the cabling, plus with this diag, can assumedly discard the clock spring as its sending signal to the sas board.

so, ive ordered a replacement sas board, as it has a separate board bolted inside the indicator/wiper switch housing [sneaky].

other than this I think it might be time for a dealer diag and possible recalibrate the SAS , as could not see this on vida [unless ive missed it?].

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