Steering Angle Sensor System

INSPECTION PROCEDURE

1. CHECK SELF-DIAGNOSIS RESULT 

   Check self-diagnosis results.

   SELF-DIAGNOSIS RESULTS CHART
   
   

   Self-diagnosis results
   ST ANG SEN CIRCUIT
   ST ANG SEN COM CIR

   Is above displayed in self-diagnosis item? 

   YES: GO TO 2.

   NO: Inspection End.

2. CHECK CONNECTOR 
   1. Disconnect steering angle sensor connector M47 and ABS actuator and electric unit (control unit) connector E125 and check terminals for deformation, disconnection, looseness, or damage. Repair or replace as necessary.
   2. Reconnect connectors and repeat ABS actuator and electric unit (control unit) self-diagnosis.

   Is "ST ANGLE SEN CIRCUIT" or "ST ANG SEN COM CIR" displayed? 

   YES: GO TO 3.

   NO: Inspection End.

3. CHECK STEERING ANGLE SENSOR HARNESS 
   1. Check CAN communication system. Refer to "CAN COMMUNICATION ".
   2. Turn ignition switch OFF and disconnect steering angle sensor connector M47 and ABS actuator and electric unit (control unit) connector E125.
   3. Check continuity between ABS actuator and electric unit (control unit) connector E125 and steering angle sensor connector M47.
      Fig 1: Checking Continuity Between ABS Actuator And Electric Unit Connector E125 And Steering Angle Sensor Connector M47

      Courtesy of NISSAN MOTOR CO., U.S.A.
      TERMINALS CONTINUITY CHART
      
      

      ABS actuator and electric unit (control unit) harness connector E125	Steering angle sensor harness connector M47	Continuity
      11	3	Yes
      15	4	Yes

   OK or NG 

   OK: GO TO 4.

   NG: Repair or replace harness.

4. CHECK DATA MONITOR 
   1. Connect steering angle sensor and ABS actuator and electric unit (control unit) connectors.
   2. Use "DATA MONITOR" to check if the status of "STR ANGLE SIG" is normal.
      DATA MONITOR REFERENCE CHART
      
      

      Steering condition	Data monitor
      Straight-ahead	-3.5 deg to +3.5 deg
      Turn wheel to the right by 90°	Approx. - 90deg
      Turn wheel to the left by 90°	Approx. + 90deg

   OK or NG 

   OK: Perform ABS actuator and electric unit (control unit) self-diagnosis again.

   NG: Replace spiral cable (steering angle sensor) and adjust neutral position of steering angle sensor.

   Refer to "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION ".