2005 NISSAN NAVARA transmission fluid

AT-1
AUTOMATIC TRANSMISSION
C TRANSMISSION/TRANSAXLE
CONTENTS
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SECTIONAT
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AUTOMATIC TRANSMISSION
INDEX FOR DTC ........................................................ 5
Alphabetical Index .................................................... 5
DTC No. Index ......................................................... 6
PRECAUTIONS .......................................................... 7
Precautions for Supplemental Restraint System
(SRS)“AIRBAG”and“SEATBELTPRE-TEN-
SIONER” .................................................................. 7
Precautions .............................................................. 7
Wiring Diagrams and Trouble Diagnosis .................. 8
PREPARATION ........................................................... 9
Special Service Tools ............................................... 9
Commercial Service Tools ...................................... 10
A/T FLUID ..................................................................11
Changing A/T Fluid ................................................. 11
Checking A/T Fluid ................................................. 12
A/T CONTROL SYSTEM .......................................... 14
Cross-Sectional View (2WD Models) ..................... 14
Cross-Sectional View (4WD Models) ..................... 15
Shift Mechanism ..................................................... 16
TCM Function ......................................................... 27
CAN Communication .............................................. 28
Input/Output Signal of TCM .................................... 28
Line Pressure Control ............................................ 29
Shift Control ........................................................... 30
Lock-up Control ...................................................... 31
Engine Brake Control ............................................. 32
Control Valve .......................................................... 33
TROUBLE DIAGNOSIS ............................................ 34
DTC Inspection Priority Chart ................................ 34
Fail-safe ................................................................. 34
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ..................................................... 36
A/T Electrical Parts Location .................................. 41
Circuit Diagram ...................................................... 42
Inspections Before Trouble Diagnosis .................... 43
Check Before Engine Is Started ............................. 46
Check at Idle .......................................................... 47
Cruise Test - Part 1 ................................................ 48
Cruise Test - Part 2 ................................................ 50
Cruise Test - Part 3 ................................................ 51Vehicle Speed at Which Gear Shifting Occurs ....... 52
Vehicle Speed at Which Lock-up Occurs/Releases... 52
Symptom Chart ....................................................... 53
TCM Input/Output Signal Reference Values ........... 76
CONSULT-II Function (A/T) .................................... 77
Diagnostic Procedure Without CONSULT-II ........... 89
DTC U1000 CAN COMMUNICATION LINE .............. 91
Description .............................................................. 91
On Board Diagnosis Logic ...................................... 91
Possible Cause ....................................................... 91
DTC Confirmation Procedure ................................. 91
Wiring Diagram — AT — CAN ................................ 92
Diagnostic Procedure ............................................. 93
DTC P0615 START SIGNAL CIRCUIT ..................... 94
Description .............................................................. 94
CONSULT-II Reference Value ................................ 94
On Board Diagnosis Logic ...................................... 94
Possible Cause ....................................................... 94
DTC Confirmation Procedure ................................. 94
Wiring Diagram — AT — STSIG ............................ 95
Diagnostic Procedure ............................................. 96
DTC P0700 TCM ....................................................... 98
Description .............................................................. 98
On Board Diagnosis Logic ...................................... 98
Possible Cause ....................................................... 98
DTC Confirmation Procedure ................................. 98
Diagnostic Procedure ............................................. 98
DTC P0705 PARK/NEUTRAL POSITION SWITCH... 99
Description .............................................................. 99
CONSULT-II Reference Value ................................ 99
On Board Diagnosis Logic ...................................... 99
Possible Cause ....................................................... 99
DTC Confirmation Procedure ................................. 99
Wiring Diagram — AT — PNP/SW .......................100
Diagnostic Procedure ...........................................101
DTC P0720 VEHICLE SPEED SENSOR A/T (REV-
OLUTION SENSOR) ...............................................103
Description ............................................................103
CONSULT-II Reference Value ..............................103
On Board Diagnosis Logic ....................................103

AT-4
Sensor 2 ...............................................................218
Parking Components (2WD Models Only) ............230
Rear Oil Seal ........................................................237
Revolution Sensor Components (2WD Models
Only) .....................................................................238
AIR BREATHER HOSE ...........................................243
Removal and Installation ......................................243
A/T FLUID COOLER ...............................................244
Removal and Installation ......................................244
TRANSMISSION ASSEMBLY ................................247
Removal and Installation ......................................247
OVERHAUL .............................................................251
Components .........................................................251
Oil Channel ...........................................................259
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings ..........................261
DISASSEMBLY .......................................................263
Disassembly .........................................................263
REPAIR FOR COMPONENT PARTS ......................281
Oil Pump ...............................................................281
Front Sun Gear, 3rd One-way Clutch ...................284Front Carrier, Input Clutch, Rear Internal Gear .....286
Mid Sun Gear, Rear Sun Gear, High and Low
Reverse Clutch Hub ..............................................291
High and Low Reverse Clutch ..............................296
Direct Clutch .........................................................298
ASSEMBLY .............................................................300
Assembly (1) .........................................................300
Adjustment ............................................................313
Assembly (2) .........................................................316
SERVICE DATA AND SPECIFICATIONS (SDS) ....323
General Specifications ..........................................323
Stall Speed ............................................................323
Line Pressure ........................................................323
Vehicle Speed at Which Gear Shifting Occurs ......324
Vehicle Speed at Which Lock-Up Occurs/Releases.324
A/T Fluid Temperature Sensor ..............................324
Vehicle Speed Sensor A/T (Revolution Sensor) ...325
Turbine Revolution Sensor ....................................325
Reverse Brake ......................................................325
Total End Play .......................................................325

PRECAUTIONS
AT-7
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ECS00IPT
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:
lTo 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.
lImproper 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.
lDo 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
harness connectors.
PrecautionsECS00IPR
lBefore connecting or disconnecting the A/T assembly har-
ness connector, turn ignition switch OFF and disconnect
the battery cable from the negative terminal. Because bat-
tery voltage is applied to TCM even if ignition switch is
turned OFF.
lAfter performing each TROUBLE DIAGNOSIS, perform
“DTC Confirmation Procedure”.
If the repair is completed the DTC should not be displayed
in the “DTC Confirmation Procedure”.
lAlways use the specified brand of ATF. Refer toMA-14, "REC-
OMMENDED FLUIDS AND LUBRICANTS".
lUse lint-free paper not cloth rags during work.
lAfter replacing ATF, dispose of the waste oil using the methods prescribed by law, ordinance, etc.
lBefore 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.
lDisassembly should be done in a clean work area.
lUse lint-free paper or towels for wiping parts clean. Common shop rags can leave fibers that could inter-
fere with the operation of the transmission.
lPlace disassembled parts in order for easier and proper assembly.
lAll parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
lGaskets, seals and O-rings should be replaced any time the transmission is disassembled.
lIt is very important to perform functional tests whenever they are indicated.
lThe 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.
lProperly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
lBefore 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.
lExtreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
lAfter overhaul, refill the transmission with new ATF.
lWhen the drain plug is removed, only some of the ATF is drained. Old ATF will remain in torque converter
and A/T fluid cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer
toAT-11, "
Changing A/T Fluid",AT-12, "Checking A/T Fluid".
SEF289H

AT-28
A/T CONTROL SYSTEM
CAN Communication
ECS00FWJ
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only. For details, refer toLAN-30,
"CAN Communication Unit".
Input/Output Signal of TCMECS00FWK
*1: Spare for vehicle speed sensor·A/T (revolution sensor)
*2: Spare for accelerator pedal position signal
*3: If these input and output signals are different, the TCM triggers the fail-safe function.
*4: Used as a condition for starting self-diagnosis; if self-diagnosis are not started, it is judged that there is some kind of error.
*5: Input by CAN communications.
*6: Output by CAN communications.Control itemLine
pressure
controlVehicle
speed
controlShift
controlLock-up
controlEngine
brake
controlFail-safe
function
(*3)Self-diag-
nostics
function
InputAccelerator pedal position signal
(*5)XXXXXX X
Vehicle speed sensor A/T
(revolution sensor)XXXXXX X
Vehicle speed sensor MTR
(*1) (*5)X
Closed throttle position signal
(*5)X(*2) X X X X(*4)
Wide open throttle position signal
(*5)XX(*4)
Turbine revolution sensor 1 X X X X X
Turbine revolution sensor 2
(for 4th speed only)XXXXX
Engine speed signals
(*5)XXXXXX X
Stop lamp switch signal
(*5)XXX X(*4)
A/T fluid temperature sensors 1, 2 X X X X X X
ASCDOperation signal
(*5)XXX
Overdrive cancel signal
(*5)X
OutputDirect clutch solenoid
(ATF pressure switch 5)XX X X
Input clutch solenoid
(ATF pressure switch 3)XX X X
High and low reverse clutch solenoid
(ATF pressure switch 6)XX X X
Front brake solenoid
(ATF pressure switch 1)XX X X
Low coast brake solenoid
(ATF pressure switch 2)XX XX X
Line pressure solenoid X X X X X X X
TCC solenoid X X X
Self-diagnosis table
(*6)X
Starter relayXX

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-181
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7.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer toAT- 2 1 8 , "
Control Valve With TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer toAT- 2 6 3 , "
DISASSEMBLY".
3. Check the following.
–Oil pump assembly. Refer toAT- 2 8 1 , "Oil Pump".
–Power train system. Refer toAT- 2 6 3 , "DISASSEMBLY".
–Transmission case. Refer toAT- 2 6 3 , "DISASSEMBLY".
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer toAT- 2 1 8 , "
Control Valve With TCM and A/T Fluid Temperature Sensor 2".
2. Check A/T fluid condition. Refer toAT-43, "
A/T Fluid Condition Check".
OK or NG
OK >> GO TO 10.
NG >> GO TO 9.
9.DETECT MALFUNCTIONING ITEM
Check malfunction items. If any items are damaged, repair or replace damaged parts. Refer toAT-53, "
Symp-
tom Chart"(Symptom No.1).
OK or NG
OK >> GO TO 10.
NG >> Repair or replace damaged parts.
10.CHECK SYMPTOM
Check again. Refer toAT-47, "
Check at Idle".
OK or NG
OK >>INSPECTION END
NG >> GO TO 11.
11 .CHECK TCM
1. Check TCM input/output signals. Refer toAT-76, "
TCM Input/Output Signal Reference Values".
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-183
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7.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer toAT- 2 1 8 , "
Control Valve With TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer toAT- 2 6 3 , "
DISASSEMBLY".
3. Check the following.
–Oil pump assembly. Refer toAT- 2 8 1 , "Oil Pump".
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
8.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer toAT- 2 1 8 , "
Control Valve With TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer toAT- 2 6 3 , "
DISASSEMBLY".
3. Check the following.
–Oil pump assembly. Refer toAT- 2 8 1 , "Oil Pump".
–Power train system. Refer toAT- 2 6 3 , "DISASSEMBLY".
–Transmission case. Refer toAT- 2 6 3 , "DISASSEMBLY".
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
9.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer toAT- 2 1 8 , "
Control Valve With TCM and A/T Fluid Temperature Sensor 2".
2. Check A/T fluid condition. Refer toAT-43, "
A/T Fluid Condition Check".
OK or NG
OK >> GO TO 10.
NG >> GO TO 13.
10.DETECT MALFUNCTIONING ITEM
Check malfunction items. If any items are damaged, repair or replace damaged parts. Refer toAT-53, "
Symp-
tom Chart"(Symptom No.43).
OK or NG
OK >> GO TO 11.
NG >> Repair or replace damaged parts.
11 .CHECK SYMPTOM
Check again. Refer toAT-47, "
Check at Idle".
OK or NG
OK >>INSPECTION END
NG >> GO TO 12.
12.CHECK TCM
1. Check TCM input/output signals. Refer toAT-76, "
TCM Input/Output Signal Reference Values".
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-185
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6.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer toAT- 2 1 8 , "
Control Valve With TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer toAT- 2 6 3 , "
DISASSEMBLY".
3. Check the following items:
–Oil pump assembly. Refer toAT- 2 8 1 , "Oil Pump".
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
7.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer toAT- 2 1 8 , "
Control Valve With TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer toAT- 2 6 3 , "
DISASSEMBLY".
3. Check the following.
–Oil pump assembly. Refer toAT- 2 8 1 , "Oil Pump".
–Power train system. Refer toAT- 2 6 3 , "DISASSEMBLY".
–Transmission case. Refer toAT- 2 6 3 , "DISASSEMBLY".
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer toAT- 2 1 8 , "
Control Valve With TCM and A/T Fluid Temperature Sensor 2".
2. Check A/T fluid condition. Refer toAT-43, "
A/T Fluid Condition Check".
OK or NG
OK >> GO TO 9.
NG >> GO TO 12.
9.DETECT MALFUNCTIONING ITEM
Check malfunction items. If any items are damaged, repair or replace damaged parts. Refer toAT-53, "
Symp-
tom Chart"(Symptom No.43).
OK or NG
OK >> GO TO 10.
NG >> Repair or replace damaged parts.
10.CHECK SYMPTOM
Check again. Refer toAT-47, "
Check at Idle".
OK or NG
OK >>INSPECTION END
NG >> GO TO 11.
11 .CHECK TCM
1. Check TCM input/output signals. Refer toAT-76, "
TCM Input/Output Signal Reference Values".
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-187
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6.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer toAT- 2 1 8 , "
Control Valve With TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer toAT- 2 6 3 , "
DISASSEMBLY".
3. Check the following.
–Oil pump assembly. Refer toAT- 2 8 1 , "Oil Pump".
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
7.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer toAT- 2 1 8 , "
Control Valve With TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer toAT- 2 6 3 , "
DISASSEMBLY".
3. Check the following.
–Oil pump assembly. Refer toAT- 2 8 1 , "Oil Pump".
–Power train system. Refer toAT- 2 6 3 , "DISASSEMBLY".
–Transmission case. Refer toAT- 2 6 3 , "DISASSEMBLY".
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer toAT- 2 1 8 , "
Control Valve With TCM and A/T Fluid Temperature Sensor 2".
2. Check A/T fluid condition. Refer toAT-43, "
A/T Fluid Condition Check".
OK or NG
OK >> GO TO 9.
NG >> GO TO 12.
9.DETECT MALFUNCTIONING ITEM
Check malfunction items. If any items are damaged, repair or replace damaged parts. Refer toAT-53, "
Symp-
tom Chart"(Symptom No.23).
OK or NG
OK >> GO TO 10.
NG >> Repair or replace damaged parts.
10.CHECK SYMPTOM
Check again. Refer toAT-48, "
Cruise Test - Part 1",AT-50, "Cruise Test - Part 2".
OK or NG
OK >>INSPECTION END
NG >> GO TO 11.
11 .CHECK TCM
1. Check TCM input/output signals. Refer toAT-76, "
TCM Input/Output Signal Reference Values".
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.