Inspection 16 CAN Communications Lines, VDC/TCS/ABS Control Unit and Steering Angle Sensor System

Inspection Procedure

1. CHECKING SELF-DIAGNOSIS RESULTS (1) 

   Check self-diagnosis results.

   Fig 1: Inspecting CAN Communications Lines, VDC/TCS/ABS Control Unit And Steering Angle Sensor System

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

   Do self-diagnosis results indicate anything other than the above? 

   1. YES >> Repair or replace the indication item.
   2. NO >> GO TO 2.
2. CHECKING CONNECTORS AND HARNESS BETWEEN VDC/TCS/ABS CONTROL UNIT AND STEERING ANGLE SENSOR 
   1. Disconnect battery negative terminal.
   2. Turn ignition switch OFF.
   3. Disconnect VDC/TCS/ABS control unit connector E218 and steering angle sensor connector M52.
   4. Check for open circuit and short circuits in harness between VDC/TCS/ABS control unit harness connector E218 and steering angle sensor harness connector M52.

   OK or NG 

   1. OK >> GO TO 3.
   2. NG >> Harness connector malfunction. Repair or replace.
3. CHECKING SELF-DIAGNOSIS RESULTS (2) 
   1. Connect VDC/TCS/ABS control unit and steering angle sensor connector.
   2. Connect battery negative terminal. Turn ignition switch ON.
   3. Erase self-diagnosis results. Then start engine and perform self-diagnosis.

   Does only "STEERING ANGLE SENSOR COMMUNICATION SYSTEM" appear on self-diagnosis results display? 

   1. YES >> Check spiral cable (Replace steering angle sensor and adjust steering angle sensor neutral position. Refer to "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION  ".)
   2. NO >> GO TO 4.
4. CHECK CONNECTOR 
   1. Turn ignition switch OFF and disconnect VDC/TCS/ABS control unit connector and steering angle sensor connector. Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminal.
   2. Securely reconnect connectors and perform self-diagnosis.
      Fig 2: Self Diagnosis Results Connector Table

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

   Is above displayed in the self-diagnosis item? 

   1. YES >> Print out self-diagnostic results and go to "CAN COMMUNICATION ".
   2. NO >> Connector terminal connection is loose, damaged, open or shorted.