VOLVO
SAS-U300049 - Control Module. System Internal Failures. Internal electronic failure
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 steering angle sensor registers an incorrect internal reference voltage for its A/D converter. The code is set when this happens, and the fault is caused by an internal fault in the sensor.
Possible causes
- Internal malfunction within the steering angle sensor (SAS).
What you can do
- 1With the engine running, turn the wheel fully right and then fully left, and see whether the code is still stored.
- 2With a diagnostic tool, read the counters. A high number of incorrect drive cycles compared with correct ones points to a recurring fault.
- 3If the fault returns, have a workshop replace the contact reel or angle sensor. If the code comes back after that, the steering wheel module (SWM) must be replaced.
- 4The angle sensor is part of the steering and stability system. Have a workshop carry out the repair rather than working on the 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.