Nissan Titan. Instruction — 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)
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
DIFFERENTIAL LOCK SYSTEM
DLN-213
< SYSTEM DESCRIPTION >
[REAR FINAL DRIVE: M226 (ELD) ]
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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
.
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]
Displays control status of DIFF LOCK indicator lamp.
D-LOCK POS SW [On/Off]
Displays condition of differential lock position switch
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
DLN-215
< SYSTEM DESCRIPTION >
[REAR FINAL DRIVE: M226 (ELD) ]
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
INFOID:0000000009886104
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: Applicable
Reference page
Possible cause and SUSPECTED PARTS
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PROPELLER SHAF
T
REAR AXLE
REAR SUSPE
NSION
TIRES
ROA
D
WHEEL
AXLE SHAFT
BRAKES
STEERI
N
G
Symptom
Noise
×
×
×
×
×
×
×
×
×
×
×
×
×
×
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