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Chances are that many of you have received the common "Anti-Skid Service Required" message from your P2 Volvo, such as the Volvo S60 or Volvo XC90. If you haven't, there's a good chance that you may come across it in the future. This common error message tends to be found most commonly on the Volvo P2 platform vehicles ranging from model years 2005-2010.

The most common cause for this message is due to a faulty steering angle sensor. The steering angle sensor is incorporated into the Supplementary Restraint System (SRS) contact reel, which is actually a part of your steering wheel module. Inside of the steering wheel sensor is a code wheel that follows the movement of the steering wheel and calculates the steering wheel angle, turning speed, and number of turns.

The first step to remedy this issue would be to upgrade the steering angle sensor software. If the software has been installed and the sensor r-calibrated, but the error message still remains, then a new steering angle sensor must be installed.


Tools Needed To Replace A Volvo Steering Angle Sensor:


Parts Needed To Replace A Volvo Steering Angle Sensor:


Steps To Replace A Volvo Steering Angle Sensor:

Step 1: Disconnect the battery

Safety first. Disconnect the battery and wait about 5 minutes before performing any work.


Step 2: Remove steering column fasteners

Unscrew the three T-25 Torx screws from the steering column covers and remove the covers.

Insert the key into the ignition to free the steering lock. Turn the wheel a quarter turn on each side to expose the two holes on the rear of the wheel. Insert a flat head screwdriver into the hole and pry up so that the screwdriver presses down on the catch release. Do this in both holes. This will release the airbag from the steering wheel.



Step 3: Disconnect wiring

Take note of the wiring and the colors of the connectors. The connector housing on the airbag with either be pink or green to match the pink or green connector housings on the wiring harness. Remove the two connectors. Remove the green connector for the Steering Wheel Module.  Place the airbag off to the side with the airbag portion facing up.

Caution: Do not place the airbag surface on the ground or rest area, the connector side should always be placed on the ground or rest area.



Step 5: Lock the column

Remove the key and lock the steering wheel by turning it. Once the column is locked, you can remove the 18 mm bolt securing the steering wheel to the steering shaft.


Step 6: Mark the splines

Once the bolt is removed, this will expose the steering shaft spline area. With a Sharpie marker, make a mark on the steering wheel splines so that they transfer onto the steering shaft splines. This will be used later so you know exactly where to reposition your steering wheel.



Step 7: Remove the steering wheel



Step 8: Remove the clock-spring screws

Now that you have the Clock-spring / SAS unit completely exposed, you'll notice the 3 Phillips head screws. Remove them.


Step 9: Remove the clock-spring connector

Remove the connector on the left side of the SAS.



Step 10: Replace the unit

When removing and installing, be sure to remove and install it perfectly straight to avoid bending the terminal pins.

Step 11: Reinstall using the previous steps in reverse.

***NOTE!*** The new unit will come with a small Torx screw inserted into a window at the top of the unit. This screw is used to lock the unit into place to prevent failure or damage to the unit and to prevent it from moving while in transit or during installation. IT IS IMPERATIVE THAT YOU REMOVE THIS TORX SCREW ONCE THE UNIT HAS BEEN INSTALLED. Leaving this screw installed will cause failure!


Once the new unit has been installed, there is a good chance that if you have the latest software already installed into the vehicle, the unit will not need to be reprogrammed. It's also recommended to have an authorized repair facility perform a calibration of the unit. This should not take more than 5 minutes of the repair facility's time. At this time, it's also a good opportunity to have them clear any DTCs that are still left in the system.


Congratulations! You just saved yourself about $200 in labor. If you have any questions about this DIY process on your Volvo, leave them in the comments section below.

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Written by :
Jay VanGorden

Jay has been with the company since 2011. He's been in the automotive industry for over 25 years and brings a great amount of automotive experience to FCP Euro. He graduated from Universal Technical Institute of Exton PA. in 2005 and then went on to graduate from the Volvo S.A.F.E program in 2006. From there he worked at a Volvo dealership for 7 years before joining the FCP Euro team achieving his ranking as a Certified Volvo Technician in 2 years, and a Master Volvo Technician in 4 years. During his tenure, Jay VanGorden has worked in multiple areas and roles within FCP Euro and is currently the VW Catalog Manager.

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