Diagnostic trouble code information

Condition 

Fig 1: Identifying Control Module For Steering Wheel Angle Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

1. If the steering wheel angle sensor (SAS) control unit registers that information cannot be read from the memory circuit, diagnostic trouble code SAS-004A will be stored.

Substitute Value 

• Stabilising function disconnected.

Possible Source 

• Defective control unit.

Fault symptom[s] 

• Anti-spin warning lamp is on.
• Stabilising function not working.