Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

System Overview






System overview

Control module

Location Of Components (Steering Wheel Angle Sensor Module (SAS)):




1. The steering wheel angle sensor module (SAS) is integrated in the steering wheel module (SWM)
2. Steering wheel angle sensor.
Only cars equipped with DSTC (dynamic stability and traction control) have a steering wheel angle sensor module (SAS). The easiest way to determine if a car is equipped with DSTC (Dynamic stability and traction control) is to search for a switch, marked DSTC, positioned in the panel on the climate control module (CCM).
The steering wheel angle sensor module (SAS) is integrated in the steering wheel module (SWM). The only function of the steering angle sensor module (SAS) is to process the signals from the steering wheel angle sensor. The signals used by the DSTC system. The steering wheel angle sensor is installed on the steering wheel module (SWM). The sensor is directly connected to the steering wheel angle sensor module (SAS). The steering wheel angle sensor module (SAS) transmits signal information, via the high speed side of the controller area network (CAN), to the brake control module (BCM) and suspension module (SUM).
If a fault occurs, the steering wheel angle sensor module (SAS) detects this and a diagnostic trouble code (DTC) is stored. The DSTC function is switched off.
Diagnostic trouble codes (DTCs) stored in the steering wheel angle sensor module (SAS). This information can be read off using VIDA via the data link connector (DLC) in the vehicle.

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.