VOLVO
SAS-U300081 - Control Module. Bus Signal / Message Failures. Invalid serial data received
System
Steering Angle Sensor (SAS)
Volvo models this fault code applies to
Applies to the following models:
4 modelsS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (4)
What does this fault code mean?
The two processors in the steering angle sensor constantly check each other's communication. The code is set when the control module detects a communication fault between them, and the fault lies in the sensor.
Possible causes
- Internal malfunction within the steering angle sensor (SAS).
What you can do
- 1Start the engine, turn the wheel fully right and then fully left, and set it straight ahead. See whether the code is still stored.
- 2With a diagnostic tool, read the counters. Many incorrect drive cycles point to a recurring fault, while few point to a temporary one.
- 3If the code returns, have a workshop replace the steering wheel module (SWM).
- 4The angle sensor is part of the stability system. Have a workshop diagnose and replace it rather than working on the steering wheel yourself.
Symptoms you may notice5
- The information lamp lights up
- The anti-spin warning lamp lights up
- Traction control does not work
- The stability function does not work
- The Four-C function does not work
What the fault can affect1
- The sensor warns the other control modules that the data it sends is wrong
General guidance for car owners. Diagnosis on the car can point to a different cause.