Vehicle Does Not Enter AWD Mode

VEHICLE DOES NOT ENTER AWD MODE

Description

Vehicle does not enter 4-wheel drive mode even though AWD warning icon/display is not displayed.


Diagnosis Procedure


1. CHECK AWD WARNING ICON/DISPLAY

Perform the trouble diagnosis of the AWD warning icon/display. Refer to "Diagnosis Procedure" Rear Final Drive R145K1.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace the error-detected parts.

2. CHECK PARKING BRAKE SWITCH SIGNAL

With CONSULT
Check "P BRAKE SW" of CONSULT "DATA MONITOR" for "ALL MODE AWD/4WD".





Is the inspection result normal?
YES- GO TO 3.
NO- Proceed to "Diagnosis Procedure" Parking Brake Switch.

3. CRUISE TEST

Drive the vehicle for a period of time.
Does any symptom occur?
YES- Replace electric controlled coupling for mechanical malfunction (mechanical engagement of clutch is not possible). Refer to "Removal and Installation" Electric Controlled Coupling.
NO- Check each harness connector pin terminal for disconnection.
Revision: March 20122013 Infiniti JX