Nissan Titan A60. Manual — part 318
DIAGNOSIS AND REPAIR WORKFLOW
DLN-211
< BASIC INSPECTION >
[REAR FINAL DRIVE: M226 (ELD) ]
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1.
INTERVIEW FOR MALFUNCTION
Interview the customer about the symptom.
>> GO TO 2
2.
SYMPTOM CHECK
Verify the symptom from the customer's information.
>> GO TO 3
3.
BASIC INSPECTION
Check the operation of each part. Check that no symptoms occur other than those specified by the customer.
>> GO TO 4
4.
SELF-DIAGNOSIS WITH CONSULT-III
Perform the self diagnosis with CONSULT-III. Check that any DTC is detected.
Is any DTC detected?
YES
>> GO TO 5
NO
>> GO TO 6
5.
TROUBLE DIAGNOSIS BY DTC
Perform the trouble diagnosis for the detected DTC. Specify the malfunctioning part.
>> GO TO 7
6.
SYMPTOM DIAGNOSIS
Perform the symptom diagnosis. Specify the malfunctioning part.
>> GO TO 7
7.
MALFUNCTIONING PART REPAIR
Repair or replace the malfunctioning part.
>> GO TO 8
8.
REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT-III)
Perform the self diagnosis with CONSULT-III. Verify that no DTCs are detected. Erase all DTCs detected prior
to the repair. Verify that DTC is not detected again.
Is any DTC detected?
YES
>> GO TO 5
NO
>> GO TO 9
9.
REPAIR CHECK (OPERATION CHECK)
Check the operation of each part.
Does it operate normally?
YES
>> Inspection End.
NO
>> GO TO 3
DLN-212
< SYSTEM DESCRIPTION >
[REAR FINAL DRIVE: M226 (ELD) ]
DIFFERENTIAL LOCK SYSTEM
SYSTEM DESCRIPTION
DIFFERENTIAL LOCK SYSTEM
Cross-Sectional View
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1.
Companion flange
2.
Drive pinion
3.
Drive gear
4.
Differential case
5.
Pinion mate gear
6.
Axle shaft
7.
Side gear
8.
Spring
9.
Differential lock solenoid
10. Pinion mate shaft
11. Pressure plate
12. Differential lock position switch
13. Cam ring
PDIA1062E
DIFFERENTIAL LOCK SYSTEM
DLN-213
< SYSTEM DESCRIPTION >
[REAR FINAL DRIVE: M226 (ELD) ]
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System Diagram
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System Description
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The differential lock system consists of the following components
• Differential lock control unit
• Differential lock mode switch
• Differential lock position switch
• Differential lock solenoid
• ABS actuator and electric unit (control unit)
• Transfer control unit
DIFFERENTIAL LOCK SYSTEM OPERATION
When the differential lock mode switch is in the LOCK position, a signal is sent to the differential lock control
unit. The differential lock control unit monitors input from the ABS actuator and electric unit (vehicle speed and
VDC operation) and the transfer control unit (4WD shift switch). If conditions are set, the differential lock con-
trol unit provides power and ground to the differential lock solenoid to lock the differential. The differential lock
position switch provides feedback to the differential lock control unit as to whether the lock is engaged based
on pressure plate position. The differential lock control unit provides ground to the DIFF LOCK indicator lamp
to activate the lamp. Refer to the Owner’s Manual for differential lock system operating instructions.
As a fail-safe function, the differential lock disengages when a malfunction is detected in the differential lock
system. Self-diagnostics can be performed using CONSULT-III. Refer to
DLN-216, "CONSULT-III Function
.
DIFFERENTIAL LOCK OPERATION
SDIA2500E
SDIA2498E
DLN-214
< SYSTEM DESCRIPTION >
[REAR FINAL DRIVE: M226 (ELD) ]
DIFFERENTIAL LOCK SYSTEM
1. Differential lock solenoid operates pressure plate.
2. Pressure plate presses cam ring.
3. Engage cam ring and side gear, and the differential is locked.
DIFFERENTIAL LOCK INDICATOR LAMP OPERATION
NOTE:
The differential lock standby condition is the time where the differential lock mode switch is in the LOCK posi-
tion and the differential is unlocked.
Component Parts Location
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Condition
DIFF LOCK indicator lamp
Differential lock/unlock
ON/OFF
Differential lock standby condition
Flashing once every 2 seconds
Differential lock system malfunction
OFF (even if differential lock mode switch is in LOCK position)
1.
Combination meter M24 (DIFF
LOCK indicator lamp)
2.
Differential lock mode switch M72
3.
Differential lock control unit B77
(view of rear cab)
4.
Differential lock position switch C16
5.
Differential lock solenoid C17
ALDIA0164ZZ
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