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Home >> Volvo >> 2012 >> XC90 Base, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Electrical Components - Design And Function >> Steering Wheel Angle Sensor Module (SAS) (2005-2014) >> System Overview >> Signals
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System Overview: Signals

The table below summarizes input and output signals to and from the steering wheel angle sensor module (SAS). The signal types are divided into directly connected signals, serial communication and controller area network (CAN) communication.

Input signals Output signals
Directly connected:  Directly connected: 
  • The steering wheel angle sensor  (7/91). Provides the steering wheel angle sensor module (SAS) with relevant information about the steering wheel angle from the straight ahead position, the speed of the steering wheel movements and about which direction the steering wheel is turned.
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Via Controller Area Network (CAN) communication:  Via Controller Area Network (CAN) communication: 
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  • Brake control module (BCM)  (4/16). The steering wheel angle sensor module (SAS) provides the brake control module (BCM) with information about the steering wheel angle from the straight ahead position, the speed of the steering wheel movements and about which direction the steering wheel is turned
  • Suspension module (SUM)  (4/84). The steering wheel angle sensor module (SAS) provides the suspension module (SUM) with information about the position of the steering wheel and the speed at which it is turned.