Inspection Procedure

With CONSULT-II 

1. Turn ignition switch "ON". (Do not start engine.)
2. Select "SELF-DIAG RESULTS" mode for "VDC" with CONSULT-II.
3. Touch "ERASE".
4. Turn ignition switch "OFF" and wait at least 10 seconds.
5. Check the self-diagnostic results.
   SELF-DIAGNOSTIC RESULTS
   
   

   Self-diagnosis results
   MAIN RELAY

Is above displayed in the self-diagnosis display? 

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

1. Turn ignition switch "OFF".
2. Disconnect VDC/TCS/ABS control unit connector E218 and VDC relay box connector E57. Then reconnect it securely.
3. Perform VDC/TCS/ABS control unit self-diagnosis again.

Do any self-diagnosis items appear? 

1. YES : GO TO 3.
2. NO : Poor connection. Repair or replace applicable connector.

1. Turn ignition switch "OFF".
2. Disconnect VDC relay box connector E57.
3. Check voltage between VDC relay box harness connector E57 and ground.

   9 - Ground : Battery voltage 

   Fig 1: Checking Voltage Between VDC Relay Box Harness Connector E57 And Ground

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

OK or NG 

1. OK : GO TO 4.
2. NG:
   • Check fuse 30A.
   • Check continuity between battery and VDC relay box harness connector E57 terminal 9. If it is not OK, replace fuse or harness.

1. Turn ignition switch "OFF".
2. Disconnect VDC/TCS/ABS control unit connector and VDC relay box connector E56.
3. Check continuity between VDC/TCS/ABS control unit harness connector E218 and VDC relay box harness connector E56.

   2 - 5 : Continuity should exist. 

   36 - 7 : Continuity should exist. 

   Fig 2: Checking Continuity Between VDC/TCS/ABS Control Unit And VDC Relay Box

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

OK or NG 

1. OK : GO TO 5.
2. NG : Open or short in harness between VDC/TCS/ABS control unit and VDC relay box.

Check solenoid valve relay as a unit. Refer to "VDC RELAY BOX ".

OK or NG 

1. OK : Check VDC/TCS/ABS control unit power circuit.
2. NG : Replace solenoid valve relay.