DTC C1113, C1145, C1146

INSPECTION PROCEDURE

1. CHECK SELF-DIAGNOSTIC RESULTS 

   Check the self-diagnostic results.

   SELF-DIAGNOSTIC RESULTS CHART
   
   

   Self-diagnostic results
   YAW RATE SENSOR
   SIDE G-SEN CIRCUIT
   G-SENSOR (AWD models)

   CAUTION: When on a turntable, such as at a parking structure entrance, or when on a moving object with engine running, VDC OFF indicator lamp might turn on and self-diagnosis using CONSULT-II the yaw rate sensor system might be displayed, but in this case there is no malfunction in yaw rate sensor circuit. As soon as vehicle leaves turntable or moving object, restart engine to return the system to normal.

   Is the above displayed in the self-diagnosis display items?

   YES : GO TO 2.

   NO : INSPECTION END

2. CHECK CONNECTOR 
   1. Disconnect G sensor connector and ABS actuator and electric unit (control unit) connector and check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminal.
   2. Reconnect connectors and perform a ABS actuator and electric unit (control unit) self-diagnosis again.

   OK or NG 

   OK : Connector terminal contact is loose, damaged, open or shorted.

   NG : GO TO 3.

3. CHECK G SENSOR HARNESS 
   1. Turn ignition switch OFF and disconnect G sensor connector M79 (2WD models) or M71 (AWD models) and ABS actuator and electric unit (control unit) connector E56.
   2. Check continuity between ABS actuator and electric unit (control unit) harness connector and G sensor harness connector.
      Fig 1: Checking Continuity Between ABS Actuator And Electric Unit Connector And G Sensor Harness Connector

      Courtesy of NISSAN MOTOR CO., U.S.A.
      ABS ACTUATOR AND ELECTRIC UNIT CONTINUITY CHART
      
      

      ABS actuator and electric unit (control unit)	G sensor	Continuity
      6	3	Yes
      24	5
      25	1
      29	2

   OK or NG 

   OK : GO TO 4.

   NG : If the open or short in harness, repair or replace harness.

4. CHECK G SENSOR 
   1. Connect G sensor connector and ABS actuator and electric unit (control unit) connector.
   2. Use CONSULT-II "DATA MONITOR" to check if G sensor are normal.
      G SENSOR REFERENCE CHART
      
      

      Vehicle status	Yaw rate sensor (Data monitor standard)	Side G sensor (Data monitor standard)	Decel G sensor (AWD models) (Data monitor standard)
      When stopped	- 4 to + 4 deg/s	- 1.1 to + 1.1 m/s2	- 0.11 to + 0.11G
      Right turn	Negative value	Negative value	-
      Left turn	Positive value	Positive value	-
      Speed up	-	-	Negative value
      Speed down	-	-	Positive value

   OK or NG 

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

   NG : Replace malfunctioning G sensor, and then perform self-diagnosis for ABS actuator and electric unit (control unit) again.