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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 899 (Brake Control System (VDC/TCS/Abs)) >> DTC/Circuit Diagnosis >> DTC C1143, C1144: Steering Angle Sensor >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

  1. CONNECTOR INSPECTION 
    1. Turn ignition switch OFF.
    2. Disconnect ABS actuator and electric unit (control unit) connector.
    3. Disconnect steering angle sensor connector.
    4. Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminal.
    5. Reconnect connectors and then perform the self-diagnosis. Refer to "CONSULT FUNCTION (ABS) ".

      Is any item indicated on the self-diagnosis display? 

      YES: GO TO 2

      NO: Poor connection of connector terminal. Repair or replace connector.

  2. CHECK STEERING ANGLE SENSOR HARNESS 
    1. Turn ignition switch OFF.
    2. Disconnect steering angle sensor connector.
    3. Check continuity between steering angle sensor connector M17 terminal 2 and ground.
      Steering angle sensor - Continuity
      Connector Terminal
      M17 2 Ground Yes
      Fig 1: Checking Steering Angle Sensor Harness Continuity
      G04899373Courtesy of NISSAN NORTH AMERICA, INC.
    4. Turn ignition switch ON.
    5. Check voltage between steering angle sensor connector M17 terminal 3 and ground.
      Steering angle sensor - Voltage
      Connector Terminal
      M17 3 Ground Battery voltage
      Fig 2: Checking Voltage Between Steering Angle Sensor & Ground
      G05380980Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: GO TO 3

      NO: Repair or replace malfunctioning components.

  3. STEERING ANGLE SENSOR INSPECTION 
    1. Connect the steering angle sensor connector and ABS actuator and electric unit (control unit) connector.
    2. Perform the steering angle sensor component inspection. Refer to "COMPONENT INSPECTION ".

      Is the inspection result normal? 

      YES: Replace ABS actuator and electric unit (control unit). Refer to "REMOVAL AND INSTALLATION ".

      NO: Replace steering angle sensor and adjust neutral position of steering angle sensor. Refer to "REMOVAL AND INSTALLATION ".