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Anti-skid service required

92K views 44 replies 20 participants last post by  ChitownV  
#1 ·
Hi all,
I've , through some of this forum but never saw a definitive answer to my question. Hence I'll ask.

I have a 2008 XC90 which I love. I'm gettting the message anti-skid service required and seem it seems to have a few questions around it. For a little while I would get the message after about 10 minutes of driving. I would turn off the notification and all would be good. Now, it comes on when I start the car. I still can just turn it off and all seems fine. Can anyone give me insight on what needs to be done and how imperitive the notification is? I live on an island and getting to the mainland is sort of an issue. I can't just hop over to a dealership. The only maintenance shop on the island is just for easy basics. I am going off island next week and can make an appt if necesarry.

thanks in advance,
 
#5 ·
Mine is a steering angle sensor (clock spring). However, have you ever checked under the passenger side carpet for water? The sunroof drains can leak, and all the water ends up under the carpet where the yaw rate sensor is. You need to remove the amp under the seat, and take a good look underneath. If there's water, then the clock spring may not be your problem.
 
#40 ·
Anti-Skid Service Required



Your answer is exacty what happened to me. After heavy rain for several days, I got that "Anti Skid" message. There is water under both front seats. I removed the carpets and let dry the water. But the error message is still on. Do I need to wait for more days because the area is still damp? Please advise me. Thank you. :)
 
#7 ·
Thank you everyone for the answers. I highly doubt there is a water issue via the sun roof. While I do live in Washington State we've had a major drought on the island I live for about 4 months. I will get it in to check specifically about steering angle sensor next week.

Much appreciate the information.
 
#9 ·
I'm on San Juan, headed to Olympia on Saturday/Sunday.

I actually popped into the shop here and they said they could take care of it, so it seems I underestimated them. But they hooked it up to read the code and after scanning it twice nothing came up. Even though the message on the dash says Anti-skid service required. Weird. Thoughts?
 
#11 ·
I'm on San Juan, headed to Olympia on Saturday/Sunday.

I actually popped into the shop here and they said they could take care of it, so it seems I underestimated them. But they hooked it up to read the code and after scanning it twice nothing came up. Even though the message on the dash says Anti-skid service required. Weird. Thoughts?
I have the same thing in my 2008 3.2. My message was intermittent, but turning the wheel definitely made it turn on. So, I hooked up the VIDA/DICE and took a look at the steering angles while parked. Noticed there was one dead spot while turning the wheel at about a 100 degrees left. When it hit that spot, the sensor didn't know if it was turning left or right and the reported angles got wonky. If I didn't turn the wheel enough where it reached the dead spot, the alert wouldn't come on. I am going to order my steering angle sensor/clock spring next week.

1 point for the VIDA/DICE!
 
#10 ·
If the shop isn't using Volvo's VIDA/DICE, codes won't be found. Generic code scanners can't read those codes. VIDA would show the problem.
 
#12 ·
I have the same message that has been constantly on for a few weeks now in my V8. Finally had it checked while in for 202,500 mi service. Faulty yaw rate sensor (PN 31110063).
 
#13 ·
I have had this issue "Anti-Skid Service Needed" for 3 years.
After doing research on this topic, I decided to leave it alone, i.e., not fixing it b/c:

1. It is an expensive part, and I can do it myself (I have VIDA laptop).
2. But there is no warranty the new closckspring will fix it (or the yaw sensor). Search the internet and you will see some people spending big bucks replacing the clockspring, and the message is still there.
3. Thousands of cars out there don't have this feature and run just fine.

BTW, this anti-skid service: when it senses you steer the SW too quick or the yaw sensor says the car has some "yaw", it reduced the throttle input to minimize skid. So:

1. During the summer and dry road, you don't really need this feature.
2. In the winter I have snow tires and am conservative with the throttle.

Have never needed this anti-skid feature.
 
#15 ·
I have a new-to-me 2004, with the message on the dash. Never really worried about it until this weekend and had some heavy rains. The front tires were spinning a lot from a stop (on crosswalk paint, etc), which surprised me. Time to start trying to diagnose, as I'd like a functional AWD system before winter gets here...
 
#16 ·
Welcome! Does it seem to always be on, or only come on when making a sharp, full-lock turn? As odd as it sounds, mine stopped doing it once I got the control arm bushings (only use OE Volvo or Lemforder), outer tie rod ends and a new alignment done. Mine was only coming on after a hard left turn.
 
#19 ·
I just did my clockspring for the 2nd time on this car. once at 120,000km under CPO and then now at 246,000km. I also did all 5 ignition coils, spark plugs, alignment, winter tire swap, oil change etc - all costed me $1600 taxes in (in canada). the clockspring part alone was $400 and the igintion coils from bosch is $90 a pop.
 
#20 ·
Mind did pop on yesterday, once, so it's not cured. I will say it happens a LOT less frequent since the repairs.
 
#21 ·
From another forum: " I would first eliminate the angle gear sleeve. with the car in park. get underneith it and see if you can turn the driveshaft going to the rear dif. If it doesn't spin then its electrical. If it does spin freely then your sleeve has stripped out."

Any validity to this? Mine definitely spins freely from underneath when in park. I just don't know enough about the AWD system yet to know if this is an issue.
 
#24 ·
Cool, then if you're lucky it's just the sleeve, reason I'm asking. Regardless, it far easier to do the job on the 5 cylinder. If you had said V8, I would have had another not so positive response about failure scenario and labor for replacement (most likely angle gear plus sleeve, and a buttload of labor to take it all apart).

This is one of the "silent" failures that the cars can experience, no reported codes and front wheel spin on acceleration to give it away. Depending on how long it's been and whether the angle gear splines are shot, you could just drive it this way until you decide to do something different. If it has not been too long, possible it's just the sleeve and get it replaced before the angle gear input splines get too chewed up.

Prior to the driveline spinning, somebody should have heard or felt the failure.

Good luck !
 
#26 ·
I've been getting the "anti-skid service required" message for the last 35k miles, only when the car has been sitting all night in below freezing temperatures. Codes point to the steering angle sensor. I recently stumbled on the thread that explains how easy it is to change the sensor. So, I have two questions:

1) In light of the fact that it only happens when cold, do you think it's the sensor itself, or something else?
2) usparts.volvocars.com says "Part Number: 31313084 ; 31264470". What is the second number? FCP Euro says the first number doesn't fit, although it fits the same year with the V8. I'm thinking it's the right part. Anyone disagree?

TIA,
 
#27 · (Edited)
Per VIDA:
Clockspring- CH <133999, PN 8622186
Clockspring- CH >134000, PN 31313084
(Chassis number = last 6 digits of VIN)

If FCP is coming back and telling you the 084 PN is incorrect, they ought to be able to tell you why. Part is listed in 364: Steering Wheel Stalk. Looks like 31264470 is the old 084 part number.

Description per VIDA (in the event anyone is interested):
Steering wheel angle sensor module (SAS)
After initiation, with the ignition key in position II and when the steering wheel is turned 4.5 degrees in any direction, the steering wheel angle sensor module (SAS) continuously transmits information about the steering wheel angle position to the brake control module (BCM) to calculate the intended direction of travel. The steering wheel angle sensor module (SAS) also transmits information to the suspension module (SUM). Communication between the steering wheel angle sensor module (SAS) and the brake control module (BCM) occurs on the high speed side of the controller area network (CAN). The steering wheel angle sensor module (SAS) is integrated in the steering wheel module (SWM). The steering wheel angle sensor module (SAS) is powered via the steering wheel module (SWM).
Steering wheel angle sensor
The steering wheel angle sensor is incorporated with the SRS contact reel, which in turn is installed on the steering wheel module (SWM). A code wheel is mounted inside the steering wheel angle sensor which follows the movements of the steering wheel. 9 optical digital sensors and 2 analog photo diodes read off the code wheel. The signal must create a specific pattern. This information is transmitted to the steering wheel angle sensor module (SAS) which uses these signals to calculate the steering wheel angle, speed and number of turns. In total, the steering wheel angle sensor can measure a range of +/- 720 degrees, although the steering wheel can only be turned a maximum of +/-540 degrees.
Due to the reliance of the DSTC (Dynamic stability and traction control) system on information from the steering angle sensor it is extremely important that the contact reel has been centered correctly and that only an original Volvo steering wheel is used.

There is another much larger description of how the DSTC systems works in VIDA, see Design and Function, section 593 for the Brake Control System.
 
#28 ·
Wow, that's certainly more information than I was expecting...

I'm convinced it's the right part number and I suspect their listing is incomplete. I can't look it up other than by part number, so I can't figure out whether they think another number is the right one. Several other sources seem to indicate the number fits all variants, not just V8's.

I guess my real concern is if it makes sense it would only fail when cold. I've heard of failures when hot, but no one has mentioned the opposite.

FCP Euro has it on sale until midnight tonight...

Is there a way a commoner like me can access VIDA?
 
#32 ·
Well, I changed the part out this afternoon. It went pretty smoothly, with a couple of minor issues.

First off, the steering wheel bolt is supposed to be replaced. the torque spec is 30Nm plus 30 degrees. Usually this means it's a "torque to yield" bolt, but the torque is low for a bolt that size so i doubt it is stretched beyond its elastic limit. Maybe because it has thread locker on it. Anyhow, I reused the bolt and used medium strength LocTite.

Second, remember to turn the key to the off position before you reconnect the battery...

Anyhow, no codes yet. I have to wait for a cold morning to see if it fixed my problem, Maybe tomorrow. One concern: the two plastic halves of the steering column housing have never fit perfectly. I'm hoping that's not a sign that the clock spring has been replaced before...
 
#33 ·
...Second, remember to turn the key to the off position before you reconnect the battery...
Actually, that isn't correct. Key to position II is where it's supposed to be when reconnecting the battery.
 
#34 ·
http://forums.swedespeed.com/showthread.php?137968-Battery-Disconnect-Procedure
http://howardsvolvos.webs.com/miscissues.htm#207347288

Some other mentions of lock/unlock using the remote, open/close sunroof, turn blower motor to max then min, in additional to re-setting the clock, when battery power is removed for an extended period of time.

Pay some attention to the comments about a 5+ minute "wait period" after shutting the car down after a drive and before the disconnecting the battery. I made a mistake once with disconnecting the battery once immediately after the car had been driven, ended up corrupting my yaw sensor (anti skid, DSTC disabled). With some luck and a working VIDA/DICE, I was able to do a re-calibrate of the BCM and get the yaw sensor issue sorted out but that was a long and somewhat anxious lesson to have learned. More time is better after the car has been driven before removing battery power.

Good luck !