Nissan Titan. Instruction — part 127
DLN-80
< SYMPTOM DIAGNOSIS >
[TRANSFER: TX15B]
ATP SWITCH
3. Check continuity between transfer control unit harness connec-
tor E142 terminal 23 and ATP switch harness connector F55 ter-
minal 8.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Disconnect ATP switch harness connector.
3. Check continuity between ATP switch harness connector F55
terminal 9 and ground.
Also check harness for short to power.
OK or NG
OK
>> GO TO 4.
NG
>> Repair open circuit or short to power in harness or con-
nectors.
4.
CHECK ATP SWITCH
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Remove ATP switch. Refer to
DLN-12, "Component Parts Location"
3. Push and release ATP switch and check continuity between ATP
switch terminals 8 and 9.
OK or NG
OK
>> GO TO 5.
NG
>> Replace ATP switch.
5.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
OK or NG
OK
>> GO TO 6.
NG
>> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
6.
CHECK ATP WARNING LAMP
1. Turn ignition switch ON. (Do not start engine.)
2. A/T selector lever N position and engage the parking brake.
3. Switch 4WD shift switch from 4H to 4LO or 4LO to 4H.
Does ATP warning lamp ON, while actuator motor is operating?
YES
>> Inspection End.
NO
>> Refer to
.
Continuity should exist.
SDIA3376E
Continuity should exist.
SDIA2394E
Terminal
Condition
Continuity
8 - 9
Push ATP switch
Yes
Release ATP switch
No
SDIA2395E
ATP SWITCH
DLN-81
< SYMPTOM DIAGNOSIS >
[TRANSFER: TX15B]
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Component Inspection
INFOID:0000000009886024
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Disconnect ATP switch harness connector.
3. Remove ATP switch. Refer to
DLN-12, "Component Parts Location"
.
4. Push and release ATP switch and check continuity between ATP
switch terminals 8 and 9.
5. If the inspection results are abnormal replace the ATP switch.
Terminal
Condition
Continuity
8 - 9
Push ATP switch
Yes
Release ATP switch
No
SDIA2395E
DLN-82
< PRECAUTION >
[TRANSFER: TX15B]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009886025
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 for Transfer Assembly and Transfer Control Unit Replacement
INFOID:0000000009886026
When replacing transfer assembly or transfer control unit, check the 4WD shift indicator pattern and adjust-
ment of the position between transfer assembly and transfer control unit if necessary.
CHECK 4WD SHIFT INDICATOR PATTERN
1. Set 4WD shift switch to 2WD, 4H, 4LO, 4H and 2WD in order. Stay at each switch position for at least 2
seconds.
2. Confirm 4WD shift indicator lamp and 4LO indicator lamp are changed properly as follows.
PRECAUTIONS
DLN-83
< PRECAUTION >
[TRANSFER: TX15B]
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• If inspection results are normal, the position between transfer assembly and transfer control unit is cor-
rect.
• If inspection results are abnormal, the position is different between transfer assembly and transfer con-
trol unit.
Adjust the position between transfer assembly and transfer control unit. Refer to pattern table below.
Transfer position adjustment pattern
NOTE:
Method of adjustment can be chosen voluntarily, according to location of 4WD shift switch.
METHOD FOR ADJUSTMENT WITH 4WD SHIFT SWITCH AT 2WD
Select Adjustment Pattern
1. Start engine. Run engine for at least 10 seconds.
2. Check 4WD shift indicator lamp and 4LO indicator lamp.
4WD shift
switch
Indicator lamp
Operation of 4WD shift switch
4WD shift
4LO
2WD
OFF
2WD
⇔ 4H switching can be done while driving. The indicator lamp
will change when the driving mode is changed. Gear shifting be-
tween 2WD
⇔ 4H position must be performed at speeds below 100
km/h (60 MPH).
4H
Flashing
To shift between 4H
⇔ 4LO, stop vehicle and shift transmission
shift selector to the "N" position with brake pedal depressed.
4LO
ON
The 4WD shift switch will not shift to the desired mode if the trans-
mission is not in "N" or the vehicle is moving.
You must wait for the 4LO indicator lamp to stop flashing and re-
main lit or turned off before shifting your transmission into gear or
releasing the clutch pedal.
AWDIA0872ZZ
AWDIA0873ZZ
AWDIA0873ZZ
AWDIA0873ZZ
4WD shift switch condition
Refer procedure
4WD shift switch is under 2WD condition when engine is being stopped.
METHOD FOR ADJUSTMENT WITH 4WD SHIFT
SWITCH AT 2WD
4WD shift switch is under 4H or 4LO condition when engine is being stopped.
METHOD FOR ADJUSTMENT WITH 4WD SHIFT
SWITCH AT 4H OR 4LO
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