What does fault code SAS-C009404 mean?

Diagnostic fault code details for SAS-C009404 (Volvo XC90 (2003–), Volvo XC90 (2003–), Volvo XC90 (2003–)). Repair service at OBD Tuning.

VOLVO

SAS-C009404 - Steering Angle Sensor (SAS) analogue-digital converter. General fault information. Internal fault

System

Steering Angle Sensor (SAS)

Volvo models this fault code applies to

Applies to the following models:

1 model

XC90 (2003–)

Show models by year and engine (5)

What does this fault code mean?

The signal pattern from the angle sensor's code wheel does not match, due to an internal fault in the sensor. The stability function is blocked while the fault is present. On cars built before early October 2010 the sensor software may need updating.

Possible causes

Internal fault in the angle sensor

What you can do

1On cars built before early October 2010, a workshop should update the sensor software
2Drive at higher speed with full steering lock both ways; if no anti-spin lamp and no warning message appears in the instrument display, the contact reel should be replaced
3With diagnostic equipment, follow the counters for the fault status: many incorrect driving cycles point to a recurring fault, few to a temporary one
4If the fault returns after the contact reel is replaced, have a workshop replace the steering wheel module (SWM)
5The stability function stays blocked while the fault is present, so have a workshop repair it promptly

Symptoms you may notice1

Anti-spin warning lamp is on

What the fault can affect1

Stability function blocked

General guidance for car owners. Diagnosis on the car can point to a different cause.