Diagnostic Procedure

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 under TROUBLE DIAGNOSIS - GENERAL DESCRIPTION.
  2. If NG, recheck transfer control unit pin terminals for damage or loose connection with harness connector.