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Nissan Titan. Manual - part 160

DLN-212

< 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

INFOID:0000000009886101

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)

Combination meter M24 (DIFF
LOCK indicator lamp)

Differential lock mode switch M72

Differential lock control unit B77
(view of rear cab)

Differential lock position switch C16

Differential lock solenoid C17

ALDIA0164ZZ

DIFFERENTIAL LOCK SYSTEM

DLN-213

< SYSTEM DESCRIPTION >

[REAR FINAL DRIVE: M226 (ELD) ]

DLN

Component Description

INFOID:0000000009886102

Component

Function

Differential lock control unit

• Controls differential lock solenoid to lock/unlock the differential.
• As a fail-safe function, the differential lock disengages when a malfunction is detected

within the differential lock system.

Differential lock solenoid

Controls pressure plate operation when provided power and ground from the differential
lock control unit.

Differential lock position switch

Detects differential lock/unlock condition based on the position of the pressure plate.

Differential lock mode switch

Allows driver input for differential LOCK/UNLOCK to the differential lock control unit.

DIFF LOCK indicator lamp

Illuminates to indicate the differential lock is locked or in standby condition.

ABS actuator and electric unit (control unit)

Transmits the following signals via CAN communication to the differential lock control
unit.
• Vehicle speed signal
• VDC operation signal

Transfer control unit

Transmits the 4WD shift switch signal via CAN communication to the differential lock
control unit.

DLN-214

< SYSTEM DESCRIPTION >

[REAR FINAL DRIVE: M226 (ELD) ]

DIAGNOSIS SYSTEM (DIFFERENTIAL LOCK CONTROL UNIT)

DIAGNOSIS SYSTEM (DIFFERENTIAL LOCK CONTROL UNIT)

CONSULT Function (DIFF LOCK)

INFOID:0000000009886103

CONSULT can display each diagnostic item using the following direct diagnostic modes.

SELF DIAGNOSTIC RESULT

Display Item List

Refer to

DLN-237, "DTC Index"

DATA MONITOR

Direct Diagnostic Mode

Description

Ecu Identification

The differential lock control unit part number is displayed.

Self Diagnostic Result

The differential lock control unit self diagnostic results are displayed.

Data Monitor

The differential lock control unit input/output data is displayed in real time.

CAN Diag Support Mntr

The result of transmit/receive diagnosis of CAN communication is displayed.

Monitor Item [Unit]

Description

BATTERY VOLT [V]

Displays power supply voltage for the differential lock control unit.

4WD MODE [2H/4H/4Lo]

Displays 4WD shift switch position.

VHCL S/SEN-R [km/h/mph]

Displays rear wheel speed sensor (right). Value is approximately equal to the indication of ve-
hicle speed on the speedometer (inside

±10%).

VHCL S/SEN-L [km/h/mph]

Displays rear wheel speed sensors (left). Value is approximately equal to the indication of ve-
hicle speed on the speedometer (inside

±10%).

VHCL S/SEN-RL [km/h/mph]

Displays average of rear wheel speed sensors (left and right). Value is approximately equal to
the indication of vehicle speed on the speedometer (inside

±10%).

D-LOCK SW SIG [On/Off]

Displays differential lock mode switch position.

D-LOCK SIG [On/Off]

Displays control status of differential lock.

RELAY ON [On/Off]

Displays operating condition of differential lock solenoid relay (integrated in differential lock
control unit).

RELAY MTR [On/Off]

Displays control status of differential lock solenoid relay (integrated in differential lock control
unit).

SOL MTR [On/Off]

Displays control status of differential lock solenoid.

IND MTR [On/Off]