Nissan Pathfinder (2008 year). Manual — part 604
TM-174
< SYMPTOM DIAGNOSIS >
SYSTEM SYMPTOM
65
Others
Maximum speed low.
ON vehicle
1. Fluid level and state
2. Line pressure test
3. Accelerator pedal position sensor
4. CAN communication line
5. Direct clutch solenoid valve
6. Control valve with TCM
OFF vehicle
7. Torque converter
8. Oil pump assembly
9. Input clutch
10. Gear system
11. High and low reverse clutch
12. Direct clutch
13. Forward one- way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
14 Forward brake (Parts behind drum support is impossible to
perform inspection by disassembly. Refer to
.)
66
Extremely large creep.
ON vehicle
1. Engine idle speed
(VQ),
(VK)
2. CAN communication line
OFF vehicle
3. Torque converter
67
With selector lever in
“P” position, vehicle
does not enter parking
condition or, with se-
lector lever in another
position, parking con-
dition is not cancelled.
Refer to
"P" Position, Vehicle
Moves When
Pushed"
.
ON vehicle
1. PNP switch
2. Control cable adjustment
OFF vehicle
3. Parking pawl components
68
Vehicle runs with
transmission in “P” po-
sition.
ON vehicle
1. PNP switch
2. Fluid level and state
3. Control cable adjustment
4. Control valve with TCM
5. Parking pawl components
OFF vehicle
6. Gear system
No.
Items
Symptom
Condition
Diagnostic Item
Reference
page
SYSTEM SYMPTOM
TM-175
< SYMPTOM DIAGNOSIS >
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Others
Vehicle runs with
transmission in “N” po-
sition.
Refer to
.
ON vehicle
1. PNP switch
2. Fluid level and state
3. Control cable adjustment
4. Control valve with TCM
OFF vehicle
5. Input clutch
6. Gear system
7. Direct clutch
8. Reverse brake
9. Forward one- way clutch (Parts behind drum support is im-
possible to perform inspection by disassembly. Refer to
10. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
70
Engine does not start
in “N” or “P” position.
Refer to
gine Cannot Be Start-
ed in "P" or "N"
Position"
.
ON vehicle
1. Ignition switch and starter
,
2. Control cable adjustment
3. PNP switch
71
Engine starts in posi-
tions other than “N” or
“P”.
ON vehicle
1. Ignition switch and starter
,
2. Control cable adjustment
3. PNP switch
72
Engine stall.
ON vehicle
1. Fluid level and state
2. Engine speed signal
3. Turbine revolution sensor
4. Torque converter clutch solenoid valve
5. CAN communication line
6. Control valve with TCM
OFF vehicle
7. Torque converter
73
Engine stalls when se-
lect lever shifted “N”
→
“D”, “R”.
ON vehicle
1. Fluid level and state
2. Engine speed signal
3. Turbine revolution sensor
4. Torque converter clutch solenoid valve
5. CAN communication line
6. Control valve with TCM
OFF vehicle
7. Torque converter
74
Others
Engine speed does
not return to idle.
Refer to
gine Speed Does Not
Return to Idle"
.
ON vehicle
1. Fluid level and state
2.Direct clutch solenoid valve
3. Front brake solenoid valve
4. Accelerator pedal position sensor
5. Vehicle speed sensor A/T and vehicle speed sensor MTR
6. CAN communication line
7. Control valve with TCM
OFF vehicle
8. Front brake (brake band)
9. Direct clutch
No.
Items
Symptom
Condition
Diagnostic Item
Reference
page
TM-176
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001282719
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.
Precaution for On Board Diagnosis (OBD) System of A/T and Engine
INFOID:0000000001282720
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
• Be sure to turn the ignition switch “OFF” and disconnect the negative battery cable before any repair
or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. Will
cause the MIL to light up.
• Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
• Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. May cause the MIL to light up due to a short circuit.
• Be sure to connect rubber tubes properly after work. A mis-connected or disconnected rubber tube
may cause the MIL to light up due to a malfunction of the EGR system or fuel injection system, etc.
• Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
Precaution
INFOID:0000000001282721
• Before connecting or disconnecting the A/T assembly har-
ness connector, turn ignition switch “OFF” and disconnect
negative battery cable. Because battery voltage is applied to
TCM even if ignition switch is turned “OFF”.
SEF289H
PRECAUTIONS
TM-177
< PRECAUTION >
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• After performing each TROUBLE DIAGNOSIS, perform “DTC
(Diagnostic Trouble Code) CONFIRMATION PROCEDURE”.
If the repair is completed the DTC should not be displayed in
the “DTC CONFIRMATION PROCEDURE”.
• Always use the specified brand of ATF. Refer to
MA-10, "Fluids and Lubricants"
• Use lint-free paper not cloth rags during work.
• After replacing the ATF, dispose of the waste oil using the methods prescribed by law, ordinance, etc.
• Before proceeding with disassembly, thoroughly clean the outside of the transmission. It is important to pre-
vent the internal parts from becoming contaminated by dirt or other foreign matter.
• Disassembly should be done in a clean work area.
• Use lint-free paper or towels for wiping parts clean. Common shop rags can leave fibers that could interfere
with the operation of the transmission.
• Place disassembled parts in order for easier and proper assembly.
• All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
• Gaskets, seals and O-rings should be replaced any time the transmission is disassembled.
• It is very important to perform functional tests whenever they are indicated.
• The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent springs
and small parts from becoming scattered or lost.
• Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
• Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings and
seals, or hold bearings and washers in place during assembly. Do not use grease.
• Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
• Clean or replace ATF cooler if excessive foreign material is found in oil pan or clogging strainer. Refer to
177, "Service Notice or Precaution"
• After overhaul, refill the transmission with new ATF.
• When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque con-
verter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer to
TM-182, "Changing the A/T Fluid (ATF)"
TM-180, "Checking the A/T Fluid (ATF)"
Service Notice or Precaution
INFOID:0000000001282722
ATF COOLER SERVICE
If A/T fluid contains frictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced,
inspect and clean the A/T fluid cooler mounted in the radiator or replace the radiator. Flush cooler lines using
cleaning solvent and compressed air after repair. For A/T fluid cooler cleaning procedure, refer to
. For radiator replacement, refer to
CO-16, "Removal and Installation"
CO-43, "Removal and Installation"
OBD-II SELF-DIAGNOSIS
• A/T self-diagnosis is performed by the TCM in combination with the ECM. Refer to the table on
"CONSULT-III Function (TRANSMISSION)"
for the indicator used to display each self-diagnostic result.
• The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM memo-
ries.
Always perform the procedure on
TM-33, "OBD-II Diagnostic Trouble Code (DTC)"
to complete the
repair and avoid unnecessary blinking of the MIL.
For details of OBD-II, refer to
(VK56DE).
• Certain systems and components, especially those related to OBD, may use the new style slide-lock-
ing type harness connector. For description and how to disconnect, refer to XX-XX Harness Conec-
tor.
SEF217U
TM-178
< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Special Service Tool
INFOID:0000000001282723
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
ST2505S001
(J-34301-C)
Oil pressure gauge set
1 ST25051001
(
—
)
Oil pressure gauge
2 ST25052000
(
—
)
Hose
3 ST25053000
(
—
)
Joint pipe
4 ST25054000
(
—
)
Adapter
5 ST25055000
(
—
)
Adapter
Measuring line pressure
KV31103600
(J-45674)
Joint pipe adapter
(With ST25054000)
Measuring line pressure
ST33400001
(J-26082)
Drift
• Installing rear oil seal (2WD models)
• Installing oil pump housing oil seal
a: 60 mm (2.36 in) dia.
b: 47 mm (1.85 in) dia.
KV31102400
(J-34285 and J-34285-87)
Clutch spring compressor
Installing reverse brake return spring retainer
a: 320 mm (12.60 in)
b: 174 mm (6.85 in)
LCIA0399E
ZZA1227D
NT086
NT423
PREPARATION
TM-179
< PREPARATION >
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Commercial Service Tool
INFOID:0000000001282724
ST25850000
(J-25721-A)
Sliding hammer
Remove oil pump assembly
a: 179 mm (7.05 in)
b: 70 mm (2.76 in)
c: 40 mm (1.57 in)
d: M12X1.75P
—
(J-47002)
Transmission jack adapter kit
1.
—
(J-47002-1)
Center bracket
2.
—
(J-47002-3)
Adapter plate
3.
—
(J-47002-4)
Adapter block
Assist in removal of transmission and transfer
case as one assembly using only one trans-
mission jack.
Tool number
(Kent-Moore No.)
Tool name
Description
NT422
WCIA0499E
Tool name
Description
Power tool
Loosening bolts and nuts
Drift
Installing manual shaft seals
a: 22 mm (0.87 in) dia.
Drift
Installing rear oil seal (4WD models)
a: 64 mm (2.52 in) dia.
Pin punch
• Removing retaining pin
• Installing retaining pin
a: 4 mm (0.16 in) dia.
PBIC0190E
NT083
SCIA5338E
NT410
TM-180
< ON-VEHICLE MAINTENANCE >
A/T FLUID
ON-VEHICLE MAINTENANCE
A/T FLUID
Checking the A/T Fluid (ATF)
INFOID:0000000001282725
CAUTION:
If using the vehicle for towing, the A/T fluid must be replaced as specified. Refer to
.
1.
Before driving, the A/T fluid level can be checked at A/T fluid
temperatures of 30
°
to 50
°
C (86
°
to 122
°
F) using the “COLD”
range on the A/T fluid level gauge as follows:
a.
Park the vehicle on a level surface and set the parking brake.
b.
Start the engine and move the selector lever through each gear
position. Shift the selector lever into the “P” position.
c.
Check the A/T fluid level with the engine idling.
d.
Remove the A/T fluid level gauge and wipe it clean with a lint-
free paper.
CAUTION:
When wiping the A/T fluid from the A/T fluid level gauge,
always use a lint-free paper, not a cloth.
e.
Re-insert the A/T fluid level gauge into the A/T fluid charging
pipe until the cap contacts the top of the A/T fluid charging pipe
as shown.
CAUTION:
To check A/T fluid level, insert the A/T fluid level gauge until
the cap contacts the top of the A/T fluid charging pipe, with
the gauge reversed from the normal inserted position.
f.
Remove the A/T fluid level gauge and note the A/T fluid level. If
the A/T fluid level is at low side of range, add A/T fluid to the
transmission through the A/T fluid charging pipe.
CAUTION:
Do not overfill the transmission with A/T fluid.
g.
Install the A/T fluid level gauge and the A/T fluid level gauge bolt.
2.
Warm up the engine and transmission.
3.
Check for any A/T fluid leaks.
4.
Drive the vehicle to increase the A/T fluid temperature to 80
°
C (176
°
F).
LLIA0071E
A/T fluid level gauge bolt
: Refer to
(4WD).
SCIA2899E
A/T FLUID
TM-181
< ON-VEHICLE MAINTENANCE >
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5.
Allow the A/T fluid temperature to fall to approximately 65
°
C (149
°
F). Use the CONSULT-II to monitor the
A/T fluid temperature as follows:
NOTE:
The A/T fluid level will be significantly affected by the A/T fluid temperature as shown. Therefore monitor
the A/T fluid temperature data using the CONSULT-II.
a.
Connect CONSULT-II to data link connector.
b.
Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
c.
Read out the value of “ATF TEMP 1”.
6.
Re-check the A/T fluid level at A/T fluid temperatures of approxi-
mately 65
°
C (149
°
F) using the “HOT” range on the A/T fluid
level gauge as shown. The HOT range is between 50
°
- 80
°
C
(122
°
- 176
°
F).
CAUTION:
• When wiping the A/T fluid from the A/T fluid level gauge,
always use lint-free paper, not a cloth.
• To check the A/T fluid level, insert the A/T fluid level
gauge until the cap contacts the top of the A/T fluid charg-
ing pipe, with the gauge reversed from the normal
inserted position as shown.
7.
Check the A/T fluid condition.
• If the A/T fluid is very dark or has some burned smell, there
may be an internal problem with the transmission. Refer to
. Flush the transmission cooling system after repairing
the transmission.
• If the A/T fluid contains frictional material (clutches, bands,
etc.), replace the radiator and flush the transmission cooler
lines using cleaning solvent and compressed air after repairing
the transmission.
8.
Install the A/T fluid level gauge in the A/T fluid charging pipe.
9.
Tighten the A/T fluid level gauge bolt to specification.
SLIA0016E
LLIA0071E
A/T fluid level gauge bolt
: Refer to
(4WD).
SCIA2899E
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