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Home >> Ford >> 2013 >> Fiesta Titanium, 4D Hatchback, Automatic DCT Trans >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Steering System >> Interactive Diagnostics >> Pinpoint Tests >> Pinpoint Test U: Invalid Data Received From The Steering Angle Sensor Module (SASM) >> Normal Operation
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Normal Operation

The SASM broadcasts the absolute steering angle value to the PSCM over the HS-CAN at predefined intervals during every drive cycle from the first ignition ON status. During normal operation the absolute steering angle from the SASM is compared against a steering angle derived from the rear wheel speed values broadcast by the ABS module over the HS-CAN and an angle derived from the EPAS motor position. If the absolute steering angle values and the derived steering angles do not match, the EPAS system will set to a default level of assistance.

  1. U1: CHECK FOR SASM DTCS 

    Ignition ON, engine OFF.

    Press Read Vehicle Information button to retrieve DTC s from the vehicle.

    NOTE: DTCs may be displayed from previous diagnostic actions.
  2. U2: CHECK THE SASM FOR CORRECT INSTALLATION 

    Check the SASM for correct installation. Refer to ANTI-LOCK BRAKE SYSTEM AND STABILITY CONTROL .

    Make sure that the steering wheel is set to the straight ahead position.

    Access the PSCM and monitor the SW_ANGLE (ANGL) PID.

    Is the angle between -4 deg - 4 deg? 

Yes NO
The condition to set the DTC is not present at this time. CLEAR the DTCs. TEST the system for normal operation. CHECK the SASM for correct installation. REFER to ANTI-LOCK BRAKE SYSTEM AND STABILITY CONTROL .
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