Nissan Pathfinder (2012 year). Manual — part 212
ATP WARNING LAMP DOES NOT TURN ON
DLN-261
< SYMPTOM DIAGNOSIS >
[TRANSFER: TX15B]
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ATP WARNING LAMP DOES NOT TURN ON
Description
INFOID:0000000007357546
ATP warning lamp does not turn ON when the transfer case is switched in or out of 4LO with the A/T selector
lever in N position.
Diagnosis Procedure
INFOID:0000000007357547
Regarding Wiring Diagram information, refer to
1.
CHECK SYSTEM FOR CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to
DLN-202, "CONSULT Function (ALL MODE AWD/4WD)"
.
Do the self-diagnostic results indicate CAN communication?
YES
>> Perform trouble diagnosis for CAN communication line. Refer to
.
NO
>> GO TO 2.
2.
CHECK SYSTEM FOR 4WD SHIFT SWITCH
Perform trouble diagnosis for 4WD shift switch system. Refer to
DLN-216, "Diagnosis Procedure"
.
Are the inspection results normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
3.
CHECK SYSTEM FOR TRANSMISSION RANGE SWITCH SIGNAL
Perform trouble diagnosis for transmission range switch signal system. Refer to
.
Are the inspection results normal?
YES
>> GO TO 4.
NO
>> Repair or replace damaged parts.
4.
CHECK SYSTEM FOR ATP SWITCH
Perform trouble diagnosis for ATP switch system. Refer to
DLN-265, "Diagnosis Procedure"
Are the inspection results normal?
YES
>> GO TO 5.
NO
>> Repair or replace damaged parts.
5.
CHECK ATP WARNING LAMP CIRCUIT
1. Disconnect ATP switch harness connector.
2. Turn ignition switch “ON”. (Do not start engine.)
3. Ground terminal 8 on ATP switch connector F71 using suitable
wiring.
4. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
Does ATP warning lamp turn on?
YES
>> GO TO 9.
NO
>> GO TO 6.
6.
CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND COMBINATION METER
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector and combination meter harness connector.
SDIA2832E
August 2012
2012 Pathfinder
DLN-262
< SYMPTOM DIAGNOSIS >
[TRANSFER: TX15B]
ATP WARNING LAMP DOES NOT TURN ON
3. Check continuity between transfer control unit harness connec-
tor M166 terminal 39 and combination meter harness connector
M24 terminal 21.
Also check harness for short to ground and short to power.
Does continuity exist?
YES
>> GO TO 7.
NO
>> Repair or replace damaged parts.
7.
CHECK HARNESS BETWEEN COMBINATION METER AND ATP SWITCH
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect ATP switch harness connector.
3. Check continuity between combination meter harness connector
M24 terminal 1 and ATP switch harness connector F71 terminal
8.
Also check harness for short to ground and short to power.
Does continuity exist?
YES
>> GO TO 8.
NO
>> Repair or replace damaged parts.
8.
SYMPTOM CHECK
Check again.
Does the symptom still occur?
YES
>> GO TO 9.
NO
>> Inspection End.
9.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
Are the inspection results normal?
YES
>> GO TO 10.
NO
>> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
10.
CHECK TRANSFER INNER PARTS
1. Disassemble transfer assembly. Refer to
DLN-289, "Disassembly and Assembly"
2. Check transfer inner parts.
Are the inspection results normal?
YES
>> Inspection End.
NO
>> Repair or replace damaged parts.
Continuity should exist.
SDIA2825E
Continuity should exist.
SDIA2833E
August 2012
2012 Pathfinder
4WD SHIFT INDICATOR LAMP KEEPS FLASHING
DLN-263
< SYMPTOM DIAGNOSIS >
[TRANSFER: TX15B]
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4WD SHIFT INDICATOR LAMP KEEPS FLASHING
Description
INFOID:0000000007357548
The 4WD shift indicator lamp keeps flashing.
Diagnosis Procedure
INFOID:0000000007357549
1.
CONFIRM THE SYMPTOM
1. Set 4WD shift switch to “2WD”.
2. Drive the vehicle straight forward and backward keeping speed under 20 km/h (12 MPH).
Does 4WD shift indicator lamp keep flashing?
YES
>> GO TO 2.
NO
>> Inspection End.
2.
CHECK SYSTEM FOR WAIT DETECTION SWITCH
Perform trouble diagnosis for wait detection switch system. Refer to
DLN-219, "Diagnosis Procedure"
Are the inspection results normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
3.
CHECK SYSTEM FOR 4LO SWITCH
Perform trouble diagnosis for 4LO switch. Refer to
DLN-213, "Diagnosis Procedure"
.
Are the inspection results normal?
YES
>> GO TO 4.
NO
>> Repair or replace damaged parts.
4.
SYMPTOM CHECK
Check again.
Does the symptom still occur?
YES
>> GO TO 5.
NO
>> Inspection End.
5.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
Are the inspection results normal?
YES
>> GO TO 6.
NO
>> 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 TRANSFER INNER PARTS
1. Disassemble transfer assembly. Refer to
DLN-289, "Disassembly and Assembly"
2. Check transfer inner parts.
Are the inspection results normal?
YES
>> Inspection End.
NO
>> Repair or replace damaged parts.
August 2012
2012 Pathfinder
DLN-264
< SYMPTOM DIAGNOSIS >
[TRANSFER: TX15B]
4WD WARNING LAMP FLASHES SLOWLY
4WD WARNING LAMP FLASHES SLOWLY
Description
INFOID:0000000007357550
The 4WD warning lamp flashes slowly while driving (1 time / 2 seconds). The lamp continues to flash until the
ignition switch is turned OFF.
Diagnosis Procedure
INFOID:0000000007357551
1.
CHECK TIRES
Check the following. Refer to
.
• Tire size
• Tire wear
• Tire pressure
Are the inspection results normal?
YES
>> GO TO 2.
NO
>> Repair or replace damaged parts.
2.
SYMPTOM CHECK
Check again.
Does the symptom still occur?
YES
>> GO TO 3.
NO
>> Inspection End.
3.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
Are the inspection results normal?
YES
>> Inspection End.
NO
>> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
August 2012
2012 Pathfinder
ATP SWITCH
DLN-265
< SYMPTOM DIAGNOSIS >
[TRANSFER: TX15B]
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ATP SWITCH
Description
INFOID:0000000007357552
The ATP indicator does not come on when the transfer is in neutral and the A/T lever is in neutral or, the ATP
indicator stays on when the transfer case is not in neutral.
Diagnosis Procedure
INFOID:0000000007357553
Regarding Wiring Diagram information, refer to
1.
CHECK ATP SWITCH SIGNAL
With CONSULT
1. Start engine.
2. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT.
3. Read out the value of “ATP SWITCH”.
Without CONSULT
1. Start engine.
2. Check voltage between transfer control unit harness connector
terminal and ground.
Are the inspection results normal?
YES
>> GO TO 5.
NO
>> GO TO 2.
2.
CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND ATP SWITCH
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector and the ATP switch harness connector.
Condition
Display value
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
4WD shift switch: 4H to 4LO or 4LO to 4H
(While actuator motor is operating.)
ON
Except the above
OFF
Connector
Terminal
Condition
Voltage
(Approx.)
M165
23 -
Ground
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
4WD shift switch: 4H
to 4LO or 4LO to 4H
(While actuator motor
is operating.)
0V
Except the above
Battery
voltage
SDIA3375E
August 2012
2012 Pathfinder
DLN-266
< SYMPTOM DIAGNOSIS >
[TRANSFER: TX15B]
ATP SWITCH
3. Check continuity between transfer control unit harness connec-
tor M165 terminal 23 and ATP switch harness connector F71
terminal 8.
Also check harness for short to ground and short to power.
Does continuity exist?
YES
>> GO TO 3.
NO
>> 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 F71
terminal 9 and ground.
Also check harness for short to power.
Does continuity exist?
YES >> GO TO 4.
NO
>> 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-198, "Component Parts Location"
3. Push and release ATP switch and check continuity between ATP
switch terminals 8 and 9.
Are the inspection results normal?
YES
>> GO TO 5.
NO
>> Replace ATP switch.
5.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
Are the inspection results normal?
YES
>> GO TO 6.
NO
>> 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 the ATP warning lamp turn ON while the actuator motor is operating?
YES
>> Inspection End.
NO
>> Refer to
DLN-261, "Diagnosis Procedure"
Continuity should exist.
SDIA3376E
Continuity should exist.
SDIA2394E
Terminal
Condition
Continuity
8 - 9
Push ATP switch
Yes
Release ATP switch
No
SDIA2395E
August 2012
2012 Pathfinder
ATP SWITCH
DLN-267
< SYMPTOM DIAGNOSIS >
[TRANSFER: TX15B]
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Component Inspection
INFOID:0000000007357554
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect ATP switch harness connector.
3. Remove ATP switch. Refer to
DLN-198, "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
August 2012
2012 Pathfinder
DLN-268
< PRECAUTION >
[TRANSFER: TX15B]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000007357555
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 Manual. 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 Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000007357556
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″
LOCK
″
position.
• Always use CONSULT to perform self-diagnosis as a part of each function inspection after finishing work. If
DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the
″
ACC
″
position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
August 2012
2012 Pathfinder
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