2005 V70R Anti-Skid Service Required Code

wackenhut · Post by **wackenhut** » 16 Feb 2021, 18:25

Hi,

So I just got the code "Anti-Skid Service Required". I did a quick search, but have some questions...

People mentioned that the steering wheel sensor might need to be replaced. Also, the first thing to do is check the current software before replacing the sensor. How do I know if I have the current software installed?

Is this code a big deal? Not sure if it can be ignored for the time being.

Thank you!

Post by **erikv11** » 16 Feb 2021, 18:45

Welcome to the (very large) club! Yes, it can be ignored for a while in almost all cases.

There can be many causes of this message. I am trying to run them all down as my S60R has this message right now too. Here are some items on my list to check:

- It can be due to a fault with the yaw sensor, which is located under the amp under the passenger seat. Pull the seat (remove four bolts, tip it fore or aft, I do not recall), pull the amp, the yaw sensor will be staring at you. Inspect the connector and the sensor itself. If you see evidence of water damage and/or corrosion (which happens due to sunroof drain problems), the sensor becomes a strong suspect. eBay and junkyard is acceptable for replacements but of course you want to see evidence of zero water damage before you take on a used one.

- It can be due to the steering wheel not being perfectly straight when the car rolls straight ahead. Fools the sensor.

- It can be due to problems with the Haldex and AWD. Big can of worms here that I haven't wrapped my head around but I think lack of communication with the DEM is one of the common problems. If your AWD is all perfect with no Haldex-related codes then it is safe to look elsewhere.

You're going to want to get a few rounds of VIDA read-and-clear cycles to see which codes are popping up consistently, this can help.

If you ever get it fixed would love to hear the follow-up.

wackenhut · Post by **wackenhut** » 17 Feb 2021, 08:30

The diagnostic came back to be Volvo Brake Pressure Sensors. They are pretty expensive. Oh well, I guess they are necessary.

Post by **erikv11** » 17 Feb 2021, 22:01

I wonder if that could be related to their connection to the BCM? Does VIDA give a troubleshooting sequence?

Bet you could get those sensors very very cheap at a junkyard, as compared to $300 or so a pop for new Volvo items.