2005 NISSAN NAVARA brake sensor

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-2
Possible Cause .....................................................103
DTC Confirmation Procedure ...............................103
Wiring Diagram — AT — VSSA/T .........................105
Diagnostic Procedure ...........................................106
DTC P0725 ENGINE SPEED SIGNAL ...................108
Description ............................................................108
CONSULT-II Reference Value ..............................108
On Board Diagnosis Logic ....................................108
Possible Cause .....................................................108
DTC Confirmation Procedure ...............................108
Diagnostic Procedure ...........................................109
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE .................................................110
Description ............................................................110
CONSULT-II Reference Value ..............................110
On Board Diagnosis Logic ....................................110
Possible Cause .....................................................110
DTC Confirmation Procedure ...............................110
Diagnostic Procedure ............................................111
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP). 112
Description ............................................................112
CONSULT-II Reference Value ..............................112
On Board Diagnosis Logic ....................................112
Possible Cause .....................................................112
DTC Confirmation Procedure ...............................112
Diagnostic Procedure ...........................................113
DTC P0745 LINE PRESSURE SOLENOID VALVE. 114
Description ............................................................114
CONSULT-II Reference Value ..............................114
On Board Diagnosis Logic ....................................114
Possible Cause .....................................................114
DTC Confirmation Procedure ...............................114
Diagnostic Procedure ...........................................115
DTC P1705 THROTTLE POSITION SENSOR .......116
Description ............................................................116
CONSULT-II Reference Value ..............................116
On Board Diagnosis Logic ....................................116
Possible Cause .....................................................116
DTC Confirmation Procedure ...............................116
Diagnostic Procedure ...........................................116
DTC P1710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT ..................................................................118
Description ............................................................118
CONSULT-II Reference Value ..............................118
On Board Diagnosis Logic ....................................118
Possible Cause .....................................................118
DTC Confirmation Procedure ...............................118
Wiring Diagram — AT — FTS ...............................119
Diagnostic Procedure ...........................................120
Component Inspection ..........................................122
DTC P1716 TURBINE REVOLUTION SENSOR ....123
Description ............................................................123
CONSULT-II Reference Value ..............................123
On Board Diagnosis Logic ....................................123
Possible Cause .....................................................123
DTC Confirmation Procedure ...............................123
Diagnostic Procedure ...........................................124
DTC P1721 VEHICLE SPEED SENSOR MTR .......125
Description ............................................................125CONSULT-II Reference Value ...............................125
On Board Diagnosis Logic ....................................125
Possible Cause .....................................................125
DTC Confirmation Procedure ................................125
Diagnostic Procedure ............................................126
DTC P1730 A/T INTERLOCK .................................127
Description ............................................................127
On Board Diagnosis Logic ....................................127
Possible Cause .....................................................127
DTC Confirmation Procedure ................................127
Judgement of A/T Interlock ...................................128
Diagnostic Procedure ............................................128
DTC P1731 A/T 1ST ENGINE BRAKING ...............130
Description ............................................................130
CONSULT-II Reference Value ...............................130
On Board Diagnosis Logic ....................................130
Possible Cause .....................................................130
DTC Confirmation Procedure ................................130
Diagnostic Procedure ............................................131
DTC P1752 INPUT CLUTCH SOLENOID VALVE ..132
Description ............................................................132
CONSULT-II Reference Value ...............................132
On Board Diagnosis Logic ....................................132
Possible Cause .....................................................132
DTC Confirmation Procedure ................................132
Diagnostic Procedure ............................................133
DTC P1754 INPUT CLUTCH SOLENOID VALVE
FUNCTION ..............................................................134
Description ............................................................134
CONSULT-II Reference Value ...............................134
On Board Diagnosis Logic ....................................134
Possible Cause .....................................................134
DTC Confirmation Procedure ................................134
Diagnostic Procedure ............................................135
DTC P1757 FRONT BRAKE SOLENOID VALVE ...137
Description ............................................................137
CONSULT-II Reference Value ...............................137
On Board Diagnosis Logic ....................................137
Possible Cause .....................................................137
DTC Confirmation Procedure ................................137
Diagnostic Procedure ............................................138
DTC P1759 FRONT BRAKE SOLENOID VALVE
FUNCTION ..............................................................139
Description ............................................................139
CONSULT-II Reference Value ...............................139
On Board Diagnosis Logic ....................................139
Possible Cause .....................................................139
DTC Confirmation Procedure ................................139
Diagnostic Procedure ............................................140
DTC P1762 DIRECT CLUTCH SOLENOID VALVE.142
Description ............................................................142
CONSULT-II Reference Value ...............................142
On Board Diagnosis Logic ....................................142
Possible Cause .....................................................142
DTC Confirmation Procedure ................................142
Diagnostic Procedure ............................................143
DTC P1764 DIRECT CLUTCH SOLENOID VALVE
FUNCTION ..............................................................144
Description ............................................................144

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

A/T CONTROL SYSTEM
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TCM FunctionECS00FWI
The function of the TCM is to:
lReceive input signals sent from various switches and sensors.
lDetermine required line pressure, shifting point, lock-up operation, and engine brake operation.
lSend required output signals to the respective solenoids.
CONTROL SYSTEM OUTLINE
The A/T senses vehicle operating conditions through various sensors or signals. It always controls the opti-
mum shift position and reduces shifting and lock-up shocks.
CONTROL SYSTEM DIAGRAM
SENSORS (or SIGNALS)

TCM

ACTUATORS
PNP switch
Accelerator pedal position signal
Closed throttle position signal
Wide open throttle position signal
Engine speed signal
A/T fluid temperature sensor
Revolution sensor
Vehicle speed signal
1st position switch signal
Overdrive control switch signal
Stop lamp switch signal
Turbine revolution sensor
ATF pressure switchShift control
Line pressure control
Lock-up control
Engine brake control
Timing control
Fail-safe control
Self-diagnosis
CONSULT-II communication line
Duet-EA control
CAN systemInput clutch solenoid valve
Direct clutch solenoid valve
Front brake solenoid valve
High and low reverse clutch solenoid
valve
Low coast brake solenoid valve
Torque converter clutch solenoid valve
Line pressure solenoid valve
OD OFF indicator lamp
Starter relay
Back-up lamp relay
SCIA7332E

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

AT-30
A/T CONTROL SYSTEM
During Shift Change
The necessary and adequate line pressure for shift change is set.
For this reason, line pressure pattern setting corresponds to input
torque and gearshift selection. Also, line pressure characteristic is
set according to engine speed, during engine brake operation.
At Low Fluid Temperature
When the A/T fluid temperature drops below the prescribed tempera-
ture, in order to speed up the action of each friction element, the line
pressure is set higher than the normal line pressure characteristic.
Shift ControlECS00FWM
The clutch pressure control solenoid is controlled by the signals from the switches and sensors. Thus, the
clutch pressure is adjusted to be appropriate to the engine load state and vehicle driving state. It becomes
possible to finely control the clutch hydraulic pressure with high precision and a smoother shift change charac-
teristic is attained.
PCIA0010E
PCIA0011E
PCIA0012E

AT-34
TROUBLE DIAGNOSIS
TROUBLE DIAGNOSIS
PFP:00004
DTC Inspection Priority ChartECS00FWV
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
NOTE:
If DTC “U1000 CAN COMM CIRCUIT” is displayed with other DTCs, first perform the trouble diagnosis
for “DTC U1000 CAN COMMUNICATION LINE”. Refer toAT-91
.
Fail-safeECS00FWW
The TCM has an electrical fail-safe mode. This mode makes it possible to operate even if there is an error in a
main electronic control input/output signal circuit. In fail-safe mode A/T is fixed in 2nd, 4th or 5th (depending
on the breakdown position), so the customer should feel “slipping” or “poor acceleration”.
Even when the electronic circuits are normal, under special conditions (for example, when slamming on the
brake with the wheels spinning drastically and stopping the tire rotation), the transmission can go into fail-safe
mode. If this happens, switch OFF the ignition switch for 10 seconds, then switch it ON again to return to the
normal shift pattern. Therefore, the customer's vehicle has returned to normal, so handle according toAT- 3 7 ,
"WORK FLOW".
FAIL-SAFE FUNCTION
If any malfunction occurs in a sensor or solenoid, this function controls the A/T to mark driving possible.
Vehicle Speed Sensor
Signals are input from two systems - from vehicle speed sensor A/T (revolution sensor) installed on the A/T
and from combination meter so normal driving is possible even if there is a malfunction in one of the systems.
And if vehicle speed sensor A/T (revolution sensor) has unusual cases, 5th gear is prohibited.
Accelerator Pedal Position Sensor
If there is a malfunction in one of the systems, the accelerator opening angle is controlled by ECM according
to a pre-determined accelerator angle to make driving possible. And if there are malfunctions in tow systems,
the engine speed is fixed by ECM to a pre-determined engine speed to make driving possible.
PNP Switch
In the unlikely event that a malfunction signal enters the TCM, the position indicator is switched OFF, the
starter relay is switched OFF (starter starting is disabled), the back-up lamp relay switched OFF (back-up lamp
is OFF) and the position is fixed to the “D” position to make driving possible.
Starter Relay
The starter relay is switched OFF. (Starter starting is disabled.)
Priority Detected items (DTC)
1 U1000 CAN communication line
2 Except above

TROUBLE DIAGNOSIS
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A/T Interlock
lIf there is an A/T interlock judgment malfunction, the A/T is fixed in 2nd gear to make driving possible.
NOTE:
When the vehicle is driven fixed in 2nd gear, a turbine revolution sensor malfunction is displayed,
but this is not a turbine revolution sensor malfunction.
lWhen the coupling pattern below is detected, the fail-safe action corresponding to the pattern is per-
formed.
A/T INTERLOCK COUPLING PATTERN TABLE
l:NG X:OK
A/T 1st Engine Braking
When there is an A/T first gear engine brake judgment malfunction, the low coast brake solenoid is switched
OFF to avoid the engine brake operation.
Line Pressure Solenoid
The solenoid is switched OFF and the line pressure is set to the maximum hydraulic pressure to make driving
possible.
Torque Converter Clutch Solenoid
The solenoid is switched OFF to release the lock-up.
Low Coast Brake Solenoid
When a malfunction (electrical or functional) occurs, in order to make driving possible. If the solenoid is ON,
the A/T is held in 2nd gear. If the solenoid is OFF, the A/T is held in 4th gear. (Engine brake is not applied in
1st and 2nd gear.)
Input Clutch Solenoid
If a malfunction (electrical or functional) occurs with the solenoid either ON or OFF, the A/T is held in 4th gear
to make driving possible.
Direct Clutch Solenoid
If a malfunction (electrical or functional) occurs with the solenoid either ON or OFF, the A/T is held in 4th gear
to make driving possible.
Front Brake Solenoid
If a malfunction (electrical or functional) occurs with the solenoid ON, in order to make driving possible, the A/
T is held in 5th gear. If the solenoid is OFF, the A/T 4th gear.
High and Low Reverse Clutch Solenoid
If a malfunction (electrical or functional) occurs with the solenoid either ON or OFF, the A/T is held in 4th gear
to make driving possible.
Turbine Revolution Sensor 1 or 2
The control is the same as if there were no turbine revolution sensors, 5th gear is prohibited.
Gear positionATF pressure switch output
Fail-safe
functionClutch pressure output pattern after fail-safe func-
tion
SW3
(I/C)SW6
(HLR/C)SW5
(D/C)SW1
(FR/B)SW2
(LC/B)I/C HLR/C D/C FR/B LC/B L/U
A/T interlock
coupling pat-
tern3rd – X X –lHeld in
2nd gearOFF OFF ON OFF OFF OFF
4th – X X –lHeld in
2nd gearOFF OFF ON OFF OFF OFF
5th X X – XlHeld in
2nd gearOFF OFF ON OFF OFF OFF