Diagnostic Procedure

WARNING: This page is about a different car, the 2003 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

CHECK TRANSFER CONTROL UNIT POWER SOURCE
1. Turn ignition switch to "OFF" position and perform self-diagnosis again. Refer to "TROUBLE DIAGNOSIS WITHOUT CONSULT-II " and "TROUBLE DIAGNOSIS WITH CONSULT-II ".
2. Turn ignition switch to "OFF" position.
3. Disconnect transfer control unit harness connector.
4. Check voltage between transfer control unit harness connector terminal 47 and body ground.
  Voltage: Battery voltage
  
  Fig 1: Checking Transfer Control Unit Power Source
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 2.
2. NG: Check the following
  - No. 24 fuse (7.5A)
  - Harness continuity between fuse and transfer control unit
PERFORM SELF-DIAGNOSIS AGAIN
After driving for a while, perform self-diagnosis again. Refer to "TROUBLE DIAGNOSIS WITHOUT CONSULT-II " and "TROUBLE DIAGNOSIS WITH CONSULT-II ".

OK or NG
1. OK: INSPECTION END
2. NG:
  1. Perform transfer control unit input/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.