Diagnostic Procedure

Refer to "ACTUATOR & ACTUATOR POSITION SWITCH ", "COMPONENT INSPECTION".

OK or NG 

1. OK: GO TO  3.
2. NG: GO TO 2.

1. Recheck continuity of shift actuator position switch. Refer to "ACTUATOR & ACTUATOR POSITION SWITCH ", "COMPONENT INSPECTION".

   Continuity should exist. 

OK or NG 

1. OK: GO TO 3.
2. NG: Repair or replace position switch.

1. WITH CONSULT-II: GO TO 4.
2. WITHOUT CONSULT-II: GO TO  5.

With CONSULT-II 

1. Start engine (idling).
2. Select "SELF-DIAG RESULTS" in Select Diag Mode.
3. Read out self-diagnostic result.
   Fig 1: Identifying Transfer Control Device Connection With Transfer Control Unit

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 2: CONSULT-II - Self Diag Results Display

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

OK or NG 

1. OK: GO TO  7.
2. NG: GO TO  6.

Without CONSULT-II 

1. Start engine (idling).
2. Check voltage transfer control unit harness connector terminal 27 (or 44) and body ground while 4WD shift switch is set from 4H to 4LO (or from 4LO to 4H).
   Fig 3: Checking Voltage Transfer Control Unit Harness Connector Terminal And Body Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Result
   Fig 4: Terminals No. And Voltage Specifications

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

OK or NG 

1. OK: GO TO  7.
2. NG: GO TO 6.

OK or NG 

1. OK: GO TO 7.
2. NG: Repair and replace harness connector between transfer control unit and transfer control device.

After driving for a while, perform self-diagnosis again. Refer to "TROUBLE DIAGNOSIS WITHOUT CONSULT-II ".

OK or NG 

1. OK: INSPECTION END
2. NG:
   1. Perform transfer control unit/output signal inspection. Refer to "TRANSFER CONTROL UNIT INSPECTION TABLE ", "TROUBLE DIAGNOSIS - GENERAL DESCRIPTION".
   2. If NG, recheck transfer control unit pin terminals for damage or loose connection with harness connector.