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

(DIFF LOCK)"

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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