Diagnosis Procedure

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

   Is any item displayed on the self-diagnosis display? 

   YES: GO TO 2

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

2. CHECK STEERING ANGLE SENSOR HARNESS
   1. Check CAN communication system. Refer to "TROUBLE DIAGNOSIS FLOW CHART ".
   2. Turn ignition switch OFF.
   3. Disconnect steering angle sensor connector.
   4. Check continuity between steering angle sensor harness connector M53 terminal 1 and ground.
      TERMINAL CONTINUITY REFERENCE
      
      

      Steering angle sensor		Ground	Continuity
      Connector	Terminal
      M53	1	-	Yes

      Fig 1: Checking Continuity Between Steering Angle Sensor Harness Connector M53 Terminal 1 And Ground

      Courtesy of NISSAN MOTOR CO., U.S.A.
   5. Turn ignition switch ON.
   6. Check voltage between steering angle sensor connector M53 terminal 4 and ground.
   TERMINAL VOLTAGE REFERENCE
   
   

   Steering angle sensor		Ground	Voltage (Approx.)
   Connector	Terminal
   M53	4	-	Battery voltage

   Fig 2: Checking Voltage Between Steering Angle Sensor Connector M53 Terminal 4 And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

   Is the inspection result normal? 

   YES: GO TO 3

   NO: Repair or replace malfunctioning components.

3. CHECK DATA MONITOR

1. Turn ignition switch OFF.
2. Connect steering angle sensor connector and ABS actuator and electric unit (control unit) connector.
3. Select "STR ANGLE SIG" in "Data Monitor" and check steering angle sensor signal.

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 " and "SPECIAL REPAIR REQUIREMENT ".