Inspection 4 Pressure Sensor System

INSPECTION PROCEDURE

1. CHECK SELF-DIAGNOSIS RESULT 

   Check self-diagnosis results.

   Fig 1: Self-Diagnosis Result Check Table

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

   Is above displayed in self-diagnosis display items? 

   1. YES: GO TO 2.
   2. NO: Inspection END

2. CHECK CONNECTOR 
   1. Disconnect pressure sensor connector E23 and ABS actuator and electric unit (control unit) connector E24, check terminals for deformation, disconnection, looseness, and so on. If there is an error, repair or replace terminal.
   2. Reconnect connectors and Re-conduct ABS actuator and electric unit (control unit) self-diagnosis.

   OK or NG 

   1. OK: Connector terminal contact is loose, damaged, open or shorted.
   2. NG: GO TO 3.

3. CHECK PRESSURE SENSOR HARNESS 
   1. Turn ignition switch OFF and disconnect Pressure sensor connector E23 and ABS actuator and electric unit (control unit) connector E24.
   2. Check continuity between ABS actuator and electric unit (control unit) connector and pressure sensor connector.
   Fig 2: Checking Pressure Sensor Harness

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 3: Pressure Sensor Harness Check Table

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

   OK or NG 

   1. OK: GO TO 4.
   2. NG: If the open or short in harness, repair or replace harness.

4. PRESSURE SENSOR INSPECTION 
   1. Connect pressure sensor connector E23 and ABS actuator and electric unit (control unit) connectors E24
   2. Use Data Monitor to check the pressure sensor value.

Fig 4: Pressure Sensor Value Check Table

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

OK or NG 

1. OK: Inspection END
2. NG: Pressure sensor is damaged or malfunctioning, replace pressure sensor.