Nissan Titan. Instruction — part 168
DLN-244
< SYMPTOM DIAGNOSIS >
[REAR FINAL DRIVE: M226 (ELD) ]
DIFF LOCK INDICATOR LAMP DOES NOT TURN ON WITH DIFFERENTIAL
LOCK SWITCHED ON
DIFF LOCK INDICATOR LAMP DOES NOT TURN ON WITH DIFFEREN-
TIAL LOCK SWITCHED ON
Inspection Procedure
INFOID:0000000009886147
SYMPTOM:
DIFF LOCK indicator lamp does not turn ON when turning differential lock mode switch to “ON” after
engine start.
DIAGNOSTIC PROCEDURE
1.
CHECK DIFF LOCK INDICATOR LAMP
Confirm the DIFF LOCK indicator lamp proves out when ignition switch is turned ON.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Go to
DLN-243, "Inspection Procedure"
.
2.
CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to
DLN-214, "CONSULT Function (DIFF LOCK)"
.
Is any DTC detected by self-diagnosis?
YES
>> Check the malfunctioning system. Refer to
.
NO
>> GO TO 3.
3.
CHECK DIFFERENTIAL LOCK MODE SWITCH OPERATION
Check differential lock mode switch. Refer to
DLN-222, "Diagnosis Procedure"
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair component, harness or connector.
4.
CHECK DIFFERENTIAL LOCK CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT
Check differential lock control unit power supply and ground circuit. Refer to
DLN-217, "Diagnosis Procedure"
.
Is the inspection result normal?
YES
>> Replace the differential lock control unit. Refer to
DLN-251, "Removal and Installation"
.
NO
>> Repair harness or connector.
DIFF LOCK INDICATOR LAMP FLASHES WHILE DRIVING
DLN-245
< SYMPTOM DIAGNOSIS >
[REAR FINAL DRIVE: M226 (ELD) ]
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DIFF LOCK INDICATOR LAMP FLASHES WHILE DRIVING
Description
INFOID:0000000009886148
The DIFF LOCK indicator lamp will flash once every 2 seconds when the differential lock system is in standby
condition. Standby condition is the time between when the differential lock mode switch is turned ON and
when the differential lock control unit see’s all conditions are met to engage the differential lock. The DIFF
LOCK indicator lamp should be OFF if there has been a fault detected. For more information regarding the dif-
ferential lock system operation, refer to the Owner’s Instruction.
Inspection Procedure
INFOID:0000000009886149
SYMPTOM:
DIFF LOCK indicator lamp sometimes flashes while driving.
DIAGNOSTIC PROCEDURE
1.
CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to
DLN-214, "CONSULT Function (DIFF LOCK)"
.
Is any malfunction detected by self-diagnosis?
YES
>> Check the malfunctioning system. Refer to
.
NO
>> GO TO 2.
2.
CHECK DIFFERENTIAL LOCK MODE SWITCH
Perform trouble diagnosis for differential lock mode switch. Refer to
DLN-222, "Diagnosis Procedure"
.
Is the inspection result normal?
YES
>> Condition is intermittent. Refer to
GI-42, "Intermittent Incident"
.
NO
>> Repair or replace malfunctioning component.
DLN-246
< PRECAUTION >
[REAR FINAL DRIVE: M226 (ELD) ]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009886150
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Instruction. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution
INFOID:0000000009886151
• Before connecting or disconnecting differential lock control
unit harness connector, turn ignition switch “OFF” and dis-
connect the battery cable from the negative terminal. Because
battery voltage is applied to differential lock control unit even
if ignition switch is turned “OFF”.
• When connecting or disconnecting pin connectors into or
from differential lock control unit, take care not to damage pin
terminals (bend or break).
When connecting pin connectors make sure that there are not
any bends or breaks on differential lock control unit pin termi-
nal.
SEF289H
SEF291H
PRECAUTIONS
DLN-247
< PRECAUTION >
[REAR FINAL DRIVE: M226 (ELD) ]
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• Before replacing differential lock control unit, perform differ-
ential lock control unit input/output signal inspection and
make sure whether differential lock control unit functions
properly or not. Refer to
Precaution for Servicing Rear Final Drive
INFOID:0000000009886152
• Before starting diagnosis of the vehicle, understand the symptoms well. Perform correct and systematic
operations.
• Check for the correct installation status prior to removal or disassembly. When matching marks are required,
be certain they do not interfere with the function of the parts they are applied to.
• Overhaul should be done in a clean work area, a dust proof area is recommended.
• Before disassembly, completely remove sand and mud from the exterior of the unit, preventing them from
entering into the unit during disassembly or assembly.
• Always use shop paper for cleaning the inside of components.
• Avoid using cotton gloves or a shop cloth to prevent the entering of lint.
• Check appearance of the disassembled parts for damage, deformation, and abnormal wear. Replace them
with new ones if necessary.
• Gaskets, seals and O-rings should be replaced any time the unit is disassembled.
• Clean and flush the parts sufficiently and blow them dry.
• Be careful not to damage sliding surfaces and mating surfaces.
• When applying sealant, remove the old sealant from the mating surface; then remove any moisture, oil, and
foreign materials from the application and mating surfaces.
• In principle, tighten nuts or bolts gradually in several steps working diagonally from inside to outside. If a
tightening sequence is specified, observe it.
• During assembly, observe the specified tightening torque.
• Add new differential gear oil, petroleum jelly, or multi-purpose grease, as specified.
SDIA1848E
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