Nissan Pathfinder (2005 year). Instruction — part 4
AT-3
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2005 Pathfinder
DTC P1759 FRONT BRAKE SOLENOID VALVE
FUNCTION . . . . . . . . . . . . . . . .. 150
DTC P1762 DIRECT CLUTCH SOLENOID VALVE. 152
DTC P1764 DIRECT CLUTCH SOLENOID VALVE
FUNCTION . . . . . . . . . . . . . . . .. 154
DTC P1767 HIGH AND LOW REVERSE CLUTCH
SOLENOID VALVE . . . . . . . . . . . . . 156
DTC P1769 HIGH AND LOW REVERSE CLUTCH
SOLENOID VALVE FUNCTION . . . . . . . . 158
DTC P1772 LOW COAST BRAKE SOLENOID
VALVE . . . . . . . . . . . . . . . . . . 160
DTC P1774 LOW COAST BRAKE SOLENOID
VALVE FUNCTION . . . . . . . . . . . . . 162
DTC Confirmation Procedure . . . . . . . ... 162
Diagnostic Procedure . . . . . . . . . . ... 163
DTC P1841 ATF PRESSURE SWITCH 1 . . . ... 164
DTC P1843 ATF PRESSURE SWITCH 3 . . . ... 166
DTC P1845 ATF PRESSURE SWITCH 5 . . . ... 168
DTC P1846 ATF PRESSURE SWITCH 6 . . . ... 170
MAIN POWER SUPPLY AND GROUND CIRCUIT. 172
Wiring Diagram — AT — MAIN . . . . . . . 172
Diagnostic Procedure . . . . . . . . . . ... 173
CLOSED THROTTLE POSITION AND WIDE OPEN
THROTTLE POSITION CIRCUIT . . . . . . . 176
CONSULT-II Reference Value . . . . . . . .. 176
Diagnostic Procedure . . . . . . . . . . ... 176
BRAKE SIGNAL CIRCUIT . . . . . . . . . .. 177
CONSULT-II Reference Value . . . . . . . .. 177
Diagnostic Procedure . . . . . . . . . . ... 177
OVERDRIVE CONTROL SWITCH . . . . . . . 178
CONSULT-II Reference Value . . . . . . . .. 178
Diagnostic Procedure . . . . . . . . . . ... 178
TROUBLE DIAGNOSIS FOR SYMPTOMS . . . 180
A/T Does Not Perform Lock-up . . . . . . . 204
A/T Does Not Hold Lock-up Condition . . . . .. 206
AT-4
2005 Pathfinder
Vehicle Does Not Decelerate By Engine Brake . 219
SHIFT CONTROL SYSTEM . . . . . . . . . 221
A/T SHIFT LOCK SYSTEM . . . . . . . . . . 223
KEY INTERLOCK CABLE . . . . . . . . . .. 228
Components . . . . . . . . . . . . . . . 228
Removal and Installation . . . . . . . . . .. 229
ON-VEHICLE SERVICE . . . . . . . . . . .. 231
AIR BREATHER HOSE . . . . . . . . . . ... 243
Removal and Installation . . . . . . . . . .. 243
TRANSMISSION ASSEMBLY . . . . . . . . 245
OVERHAUL . . . . . . . . . . . . . . . . 252
DISASSEMBLY . . . . . . . . . . . . . ...264
Disassembly . . . . . . . . . . . . . . ..264
REPAIR FOR COMPONENT PARTS . . . . . ..281
ASSEMBLY . . . . . . . . . . . . . . . .300
INDEX FOR DTC
AT-5
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2005 Pathfinder
INDEX FOR DTC
PFP:00024
Alphabetical Index
UCS0030Z
NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to
AT-100, "DTC U1000 CAN COMMUNICATION LINE"
.
*1: These numbers are prescribed by SAE J2012.
*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.
Items
(CONSULT- II screen terms)
DTC
Reference page
OBD- II
Except OBD- II
CONSULT- II GST (*1)
CONSULT- II only “A/T”
A/T 1ST E/BRAKING
—
P1731
ATF PRES SW 1/CIRC
—
P1841
ATF PRES SW 3/CIRC
—
P1843
ATF PRES SW 5/CIRC
—
P1845
ATF PRES SW 6/CIRC
—
P1846
A/T INTERLOCK
P1730
P1730
A/T TCC S/V FNCTN
P0744
P0744
ATF TEMP SEN/CIRC
P0710
P1710
CAN COMM CIRCUIT
U1000
U1000
D/C SOLENOID/CIRC
P1762
P1762
D/C SOLENOID FNCTN
P1764 (*2 )
P1764
ENGINE SPEED SIG
—
P0725
FR/B SOLENOID/CIRC
P1757
P1757
FR/B SOLENOID FNCT
P1759
P1759
HLR/C SOL/CIRC
P1767
P1767
HLR/C SOL FNCTN
P1769 (*2)
P1769
I/C SOLENOID/CIRC
P1752
P1752
I/C SOLENOID FNCTN
P1754 (*2)
P1754
L/PRESS SOL/CIRC
P0745
P0745
LC/B SOLENOID/CIRC
P1772
P1772
LC/B SOLENOID FNCT
P1774
P1774
PNP SW/CIRC
P0705
P0705
STARTER RELAY/CIRC
—
P0615
TCC SOLENOID/CIRC
P0740
P0740
TCM
P0700
P0700
TCM·RAM
—
P1702
TCM·ROM
—
P1703
TP SEN/CIRC A/T
—
P1705
TURBINE REV S/CIRC
P1716
P1716
VEH SPD SE/CIR·MTR
—
P1721
VEH SPD SEN/CIR AT
P0720
P0720
AT-6
INDEX FOR DTC
2005 Pathfinder
DTC No. Index
UCS00310
NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to
AT-100, "DTC U1000 CAN COMMUNICATION LINE"
.
*1: These numbers are prescribed by SAE J2012.
*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.
DTC
Items
(CONSULT- II screen terms)
Reference page
OBD- II
Except OBD- II
CONSULT- II
GST (*1)
CONSULT- II
only “A/T”
—
P0615
STARTER RELAY/CIRC
P0700
P0700
TCM
P0705
P0705
PNP SW/CIRC
P0710
P1710
ATF TEMP SEN/CIRC
P0720
P0720
VEH SPD SEN/CIR AT
—
P0725
ENGINE SPEED SIG
P0740
P0740
TCC SOLENOID/CIRC
P0744
P0744
A/T TCC S/V FNCTN
P0745
P0745
L/PRESS SOL/CIRC
—
P1702
TCM·RAM
—
P1703
TCM·ROM
—
P1705
TP SEN/CIRC A/T
P1716
P1716
TURBINE REV S/CIRC
—
P1721
VEH SPD SE/CIR·MTR
P1730
P1730
A/T INTERLOCK
—
P1731
A/T 1ST E/BRAKING
P1752
P1752
I/C SOLENOID/CIRC
P1754 (*2 )
P1754
I/C SOLENOID FNCTN
P1757
P1757
FR/B SOLENOID/CIRC
P1759 (*2 )
P1759
FR/B SOLENOID FNCT
P1762
P1762
D/C SOLENOID/CIRC
P1764 (*2 )
P1764
D/C SOLENOID FNCTN
P1767
P1767
HLR/C SOL/CIRC
P1769
P1769
HLR/C SOL FNCTN
P1772
P1772
LC/B SOLENOID/CIRC
P1774
P1774
LC/B SOLENOID FNCT
—
P1841
ATF PRES SW 1/CIRC
—
P1843
ATF PRES SW 3/CIRC
—
P1845
ATF PRES SW 5/CIRC
—
P1846
ATF PRES SW 6/CIRC
U1000
U1000
CAN COMM CIRCUIT
PRECAUTIONS
AT-7
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PRECAUTIONS
PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
UCS00311
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 SRS 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 per-
formed by an authorized NISSAN/INFINITI dealer.
●
Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS 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
harness connectors.
Precautions for On Board Diagnostic (OBD) System of A/T and Engine
UCS00312
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 misconnected 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.
AT-8
PRECAUTIONS
2005 Pathfinder
Precautions
UCS00313
●
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”.
●
After performing each TROUBLE DIAGNOSIS, perform
“DTC (Diagnostic Trouble Code) CONFIRMATION PROCE-
DURE”.
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-11, "RECOMMENDED FLUIDS AND LUBRICANTS"
.
●
Use paper rags 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
prevent the internal parts from becoming contaminated by dirt or other foreign matter.
●
Disassembly should be done in a clean work area.
●
Use lint-free cloth 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
.
●
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
converter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer
to
,
.
SEF289H
SEF217U
PRECAUTIONS
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Service Notice or Precautions
UCS00314
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-11, "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
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 mem-
ories.
Always perform the procedure on
to complete the repair and avoid
unnecessary blinking of the MIL.
For details of OBD-II, refer to
EC-48, "ON BOARD DIAGNOSTIC (OBD) SYSTEM"
.
●
Certain systems and components, especially those related to OBD, may use the new style slide-
locking type harness connector. For description and how to disconnect, refer to
.
Wiring Diagrams and Trouble Diagnosis
UCS00315
When you read wiring diagrams, refer to the following:
●
GI-15, "How to Read Wiring Diagrams"
.
●
PG-4, "POWER SUPPLY ROUTING CIRCUIT"
for power distribution circuit.
When you perform trouble diagnosis, refer to the following:
●
GI-9, "How to Follow Trouble Diagnoses"
●
GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident"
AT-10
PREPARATION
2005 Pathfinder
PREPARATION
PFP:00002
Special Service Tools
UCS00316
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)
ZZA0600D
ZZA1227D
NT086
NT423
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