Diagnostic Procedure

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

CONFIRM THE SYMPTOM
1. Set 4WD shift switch to "2WD".
2. Move vehicle forward and backward, or drive straight increasing or decreasing under 20 km/h (12 MPH).
Does 4WD shift indicator lamp keep flashing?

YES: GO TO 2.

NO: Inspection End.
CHECK SYSTEM FOR WAIT DETECTION SWITCH
Perform trouble diagnosis for wait detection switch system. Refer to "WAIT DETECTION SWITCH ".

OK or NG

OK: GO TO 3.

NG: Repair or replace damaged parts.
CHECK SYSTEM FOR 4LO SWITCH
Perform trouble diagnosis for 4LO switch system. Refer to "4LO SWITCH ".

OK or NG

OK: GO TO 4.

NG: Repair or replace damaged parts.
SYMPTOM CHECK
Check again.

OK or NG

OK: Inspection End.

NG: GO TO 5.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to "TRANSFER CONTROL UNIT INPUT/OUTPUT SIGNAL REFERENCE VALUES ".

OK or NG

OK: GO TO 6.

NG: Check transfer control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.
CHECK TRANSFER INNER PARTS
1. Disassemble transfer assembly. Refer to "DISASSEMBLY AND ASSEMBLY ".
2. Check transfer inner parts.
OK or NG

OK: Inspection End.

NG: Repair or replace damaged parts.