2006 NISSAN VERSA brake sensor

AT-1
AUTOMATIC TRANSAXLE
C TRANSMISSION/TRANSAXLE
CONTENTS
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SECTION AT
A
B
AT
Revision: June 20062007 Versa INDEX FOR DTC ........................................................ 5
Alphabetical Index .................................................... 5
DTC No. Index ......................................................... 6
PRECAUTIONS .......................................................... 7
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 7
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 7
Precautions for On Board Diagnostic (OBD) System
of A/T and Engine .................................................... 8
Precautions .............................................................. 8
Service Notice or Precautions .................................. 9
PREPARATION ..........................................................11
Special Service Tools ..............................................11
Commercial Service Tools ...................................... 14
A/T FLUID ................................................................. 16
Checking A/T Fluid ................................................. 16
Changing A/T Fluid ................................................ 17
A/T Fluid Cooler Cleaning ...................................... 17
A/T CONTROL SYSTEM .......................................... 20
Cross-Sectional View ............................................. 20
Shift Mechanism ..................................................... 21
TCM Function ......................................................... 30
CAN Communication .............................................. 31
Input/Output Signal of TCM .................................... 31
Line Pressure Control ............................................ 32
Shift Control ........................................................... 33
Lock-up Control ...................................................... 34
Engine Brake Control (Overrun Clutch Control) ..... 35
Control Valve .......................................................... 37
Centrifugal Cancel Mechanism .............................. 38
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 39
Introduction ............................................................ 39
OBD-II Function for A/T System ............................. 39
One or Two Trip Detection Logic of OBD-II ............ 39
OBD-II Diagnostic Trouble Code (DTC) ................. 39
Malfunction Indicator Lamp (MIL) ........................... 42
TROUBLE DIAGNOSIS ............................................ 43
DTC Inspection Priority Chart ................................ 43Fail-safe .................................................................. 43
How to Perform Trouble Diagnoses for Quick and
Accurate Repair ...................................................... 45
A/T Electrical Parts Location .................................. 50
Circuit Diagram ....................................................... 52
Inspections Before Trouble Diagnosis .................... 53
Road Test ............................................................... 58
Check Before Engine is Started .............................. 58
Check at Idle ........................................................... 59
Cruise Test — Part 1 .............................................. 61
Cruise Test — Part 2 .............................................. 64
Cruise Test — Part 3 .............................................. 65
Vehicle Speed at Which Gear Shifting Occurs ....... 67
Vehicle Speed at Which Lock-up Occurs/Releases ... 67
Symptom Chart ....................................................... 68
TCM Terminals and Reference Value ..................... 78
CONSULT-II Function (A/T) .................................... 80
Diagnostic Procedure Without CONSULT-II ........... 90
DTC U1000 CAN COMMUNICATION LINE .............. 94
Description .............................................................. 94
On Board Diagnosis Logic ...................................... 94
Possible Cause ....................................................... 94
DTC Confirmation Procedure ................................. 94
Wiring Diagram — AT — CAN ................................ 95
Diagnostic Procedure ............................................. 96
DTC P0705 PARK/NEUTRAL POSITION (PNP)
SWITCH .................................................................... 97
Description .............................................................. 97
CONSULT-II Reference Value ................................ 97
On Board Diagnosis Logic ...................................... 97
Possible Cause ....................................................... 97
DTC Confirmation Procedure ................................. 97
Wiring Diagram — AT — PNP/SW ......................... 98
Diagnostic Procedure ............................................. 99
Component Inspection ..........................................101
DTC P0710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT ..................................................................102
Description ............................................................102
CONSULT-II Reference Value ..............................102
On Board Diagnosis Logic ....................................102

AT-3
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Revision: June 20062007 Versa Diagnostic Procedure ........................................... 172
Component Inspection ......................................... 175
DTC TURBINE REVOLUTION SENSOR ............... 176
Description ........................................................... 176
CONSULT-II Reference Value .............................. 176
On Board Diagnosis Logic ................................... 176
Possible Cause .................................................... 176
DTC Confirmation Procedure ............................... 176
Wiring Diagram — AT — PT/SEN ........................ 177
Diagnostic Procedure ........................................... 178
CONTROL UNIT (RAM), CONTROL UNIT (ROM) . 182
Description ........................................................... 182
On Board Diagnosis Logic ................................... 182
Possible Cause .................................................... 182
DTC Confirmation Procedure ............................... 182
Diagnostic Procedure ........................................... 182
MAIN POWER SUPPLY AND GROUND CIRCUIT . 183
Wiring Diagram — AT — MAIN ............................ 183
Diagnostic Procedure ........................................... 184
PNP, OD SWITCH AND CLOSED THROTTLE,
WIDE OPEN THROTTLE POSITION SIGNAL CIR-
CUIT ........................................................................ 186
CONSULT-II Reference Value .............................. 186
TCM Terminals and Reference Value ................... 186
Diagnostic Procedure ........................................... 187
Component Inspection ......................................... 191
SHIFT POSITION INDICATOR CIRCUIT ............... 192
Description ........................................................... 192
CONSULT-II Reference Value .............................. 192
Diagnostic Procedure ........................................... 192
TROUBLE DIAGNOSIS FOR SYMPTOMS ............ 193
Wiring Diagram — AT — NONDTC ...................... 193
OD OFF Indicator Lamp Does Not Come On ...... 198
Engine Cannot Be Started in “P” and “N” Position . 200
In “P” Position, Vehicle Moves Forward or Backward
When Pushed ....................................................... 201
In “N” Position, Vehicle Moves ............................. 201
Large Shock “N” → “R” Position ........................... 202
Vehicle Does Not Creep Backward in “R” Position . 203
Vehicle Does Not Creep Forward in “D”, “2” or “1”
Position ................................................................ 205
Vehicle Cannot Be Started from D
1 ...................... 206
A/T Does Not Shift: D
1 → D2 or Does Not Kickdown:
D
4 → D2 ............................................................... 208
A/T Does Not Shift: D
2 → D3 ............................... 210
A/T Does Not Shift: D
3 → D4 ............................... 212
A/T Does Not Perform Lock-up ............................ 214
A/T Does Not Hold Lock-up Condition ................. 215
Lock-up Is Not Released ...................................... 216
Engine Speed Does Not Return to Idle (Light Brak-
ing D
4 → D3 ) ....................................................... 217
A/T Does Not Shift: D
4 → D3 , When OD OFF .... 218
A/T Does Not Shift: D
3 → 22 , When Selector Lever
“D” → “2” Position ................................................ 219
A/T Does Not Shift: 2
2 → 11 , When Selector Lever
“2” → “1” Position ................................................. 221
Vehicle Does Not Decelerate by Engine Brake .... 223
TCM Self-diagnosis Does Not Activate ................ 227TRANSMISSION CONTROL MODULE ..................228
Removal and Installation ......................................228
SHIFT CONTROL SYSTEM ....................................229
Control Device Removal and Installation ..............229
Control Device Disassembly and Assembly .........232
Selector Lever Knob Removal and Installation .....233
Adjustment of A/T Position ...................................233
Checking of A/T Position ......................................234
A/T SHIFT LOCK SYSTEM ....................................235
Description ............................................................235
Shift Lock System Parts Location .........................235
Wiring Diagram — AT — SHIFT ...........................236
Diagnostic Procedure ...........................................237
KEY INTERLOCK CABLE ......................................239
Removal and Installation ......................................239
ON-VEHICLE SERVICE ..........................................242
Control Valve Assembly and Accumulators ..........242
Park/Neutral Position (PNP) Switch .....................246
Revolution Sensor ................................................247
Turbine Revolution Sensor (Power Train Revolution
Sensor) .................................................................248
Differential Side Oil Seal .......................................250
AIR BREATHER HOSE ..........................................252
Removal and Installation ......................................252
TRANSAXLE ASSEMBLY ......................................253
Removal and Installation ......................................253
OVERHAUL ............................................................257
Components .........................................................257
Oil Channel ...........................................................265
Locations of Adjusting Shims, Needle Bearings and
Thrust Washers ....................................................266
Locations of Snap Rings .......................................267
DISASSEMBLY .......................................................268
Disassembly .........................................................268
REPAIR FOR COMPONENT PARTS .....................285
Manual Shaft ........................................................285
Oil Pump ...............................................................289
Control Valve Assembly ........................................293
Control Valve Upper Body ....................................302
Control Valve Lower Body ....................................306
Reverse Clutch .....................................................309
High Clutch ...........................................................314
Forward and Overrun Clutches ............................320
Low & Reverse Brake ...........................................327
Rear Internal Gear and Forward Clutch Hub ........332
Output Shaft, Output Gear, Idler Gear, Reduction
Pinion Gear and Bearing Retainer ........................336
Band Servo Piston Assembly ...............................343
Final Drive ............................................................349
ASSEMBLY .............................................................354
Assembly (1) .........................................................354
Adjustment (1) ......................................................355
Assembly (2) .........................................................361
Adjustment (2) ......................................................366
Assembly (3) .........................................................369
SERVICE DATA AND SPECIFICATIONS (SDS) ....378
General Specifications ..........................................378
Vehicle Speed at Which Gear Shifting Occurs .....378
Vehicle Speed at When Lock-up Occurs/Releases .378

AT-4Revision: June 20062007 Versa Stall Speed ...........................................................378
Line Pressure .......................................................378
Adjusting shims, Needle Bearings, Thrust Washers
and Snap Rings ....................................................379
Control Valves .......................................................380
Accumulator ..........................................................380
Clutches and Brakes ............................................380
Final Drive ............................................................382
Planetary Carrier ...................................................382
Oil Pump ...............................................................382
Input Shaft ............................................................382
Reduction Pinion Gear .........................................382
Band Servo ...........................................................382Output Shaft .......................................................... 382
Bearing Retainer ................................................... 383
Total End Play ....................................................... 383
Reverse Clutch End Play ...................................... 383
Removal and Installation ....................................... 383
Shift Solenoid Valves ............................................ 383
Solenoid Valves .................................................... 383
A/T Fluid Temperature Sensor .............................. 383
Revolution Sensor ................................................. 383
Dropping Resistor ................................................. 383
Turbine Revolution Sensor (Power Train Revolution
Sensor) ................................................................. 383

AT-30
A/T CONTROL SYSTEM
Revision: June 20062007 Versa
TCM FunctionUCS005MC
The function of the TCM is to:

Receive input signals sent from various switches and sensors.

Determine required line pressure, shifting point, lock-up operation, and engine brake operation.

Send required output signals to the respective solenoids.
CONTROL SYSTEM OUTLINE
The automatic transaxle senses vehicle operating conditions through various sensors or signals. It always
controls the optimum shift position and reduces shifting and lock-up shocks.
CONTROL SYSTEM DIAGRAM
SWITCHES & SENSORS


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
Turbine revolution sensor (Power
train revolution sensor)
Vehicle speed sensor
Overdrive control switch signal
Stop lamp switch signalShift control
Line pressure control
Lock-up control
Overrun clutch control
Fail-safe control
Self-diagnosis
CONSULT-II communication line
controlShift solenoid valve A
Shift solenoid valve B
Overrun clutch solenoid valve
Torque converter clutch solenoid
valve
Line pressure solenoid valve
OD OFF indicator lamp
SCIA7 112 E

A/T CONTROL SYSTEM
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CAN CommunicationUCS005M D
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 to LAN-47,
"CAN System Specification Chart" .
Input/Output Signal of TCMUCS005M E
*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-diagnostics; 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
functionSelf-diag-
nostics
function
InputAccelerator pedal position signal
(*5)XXXXX(*3) XX
Vehicle speed sensor·A/T
(Revolution sensor)XXXXX(*3) XX
Vehicle speed sensor·MTR (*1) X (*1) X (*1) X (*1) X X
Closed throttle position signal
(*5)(*2) X(*2) XXX(*4) X
Wide open throttle position signal
(*5)(*2) X (*2) X (*4) X
Turbine revolution sensor (Power
train revolution sensor)XX X XX
Engine speed signal X X X X
PNP switch X X X X X (*3) X (*4) X
Stop lamp switch signal
(*5)XX (*4) X
A/T fluid temperature sensors
(*5)XXXX XX
Overdrive control switch signal
(*5)XXXX (*4) X
TCM power supply voltage signal X X X X
Out-
putShift solenoid valve A/B X (*3) X X
Line pressure solenoid X (*3) X X
Torque converter clutch solenoid
valveX(*3) XX
Overrun clutch solenoid valve X X (*3) X X
OD OFF indicator lamp
(*6)XX

A/T CONTROL SYSTEM
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AT LOW FLUID TEMPERATURE

A/T fluid viscosity and frictional characteristics of the clutch facing change with A/T fluid temperature.
Clutch engaging or band-contacting pressure is compensated for, according to A/T fluid temperature, to
stabilize shifting quality.

The line pressure is reduced below 60°C (140°F) to prevent
shifting shock due to high viscosity of A/T fluid when tempera-
ture is low.

Line pressure is increased to a maximum irrespective of the
throttle opening when A/T fluid temperature drops to −10°C
(14°F). This pressure rise is adopted to prevent a delay in clutch
and brake operation due to extreme drop of A/T fluid viscosity at
low temperature.
Shift ControlUCS005MG
The shift is regulated entirely by electronic control to accommodate vehicle speed and varying engine opera-
tions. This is accomplished by electrical signals transmitted by the revolution sensor and the ECM (accelerator
pedal position sensor). This results in improved acceleration performance and fuel economy.
CONTROL OF SHIFT SOLENOID VALVES A AND B
The TCM activates shift solenoid valves A and B according to sig-
nals from the accelerator pedal position sensor and revolution sen-
sor to select the optimum gear position on the basis of the shift
schedule memorized in the TCM.
The shift solenoid valve performs simple ON-OFF operation. When
set to “ON”, the drain circuit closes and pilot pressure is applied to
the shift valve.
RELATION BETWEEN SHIFT SOLENOID VALVES A AND B AND GEAR POSITIONS
SCIA4829E
SCIA4830E
SAT0 0 8J
Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)

TROUBLE DIAGNOSIS
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4. 4-3. “Cruise Test”AT-6 1
Part 1
❏ AT-206, "
Vehicle Cannot Be Started from D1" .
❏ AT-208, "
A/T Does Not Shift: D1 → D2 or Does Not Kickdown: D4 → D2" .
❏ AT-210, "
A/T Does Not Shift: D2 → D3" .
❏ AT-212, "
A/T Does Not Shift: D3 → D4" .
❏ AT-214, "
A/T Does Not Perform Lock-up" .
❏ AT-215, "
A/T Does Not Hold Lock-up Condition" .
❏ AT-216, "
Lock-up Is Not Released" .
❏ AT-217, "
Engine Speed Does Not Return to Idle (Light Braking D4 → D3 )" .
Part 2AT-6 4
❏ AT-206, "Vehicle Cannot Be Started from D1" .
❏ AT-208, "
A/T Does Not Shift: D1 → D2 or Does Not Kickdown: D4 → D2" .
❏ AT-210, "
A/T Does Not Shift: D2 → D3" .
❏ AT-212, "
A/T Does Not Shift: D3 → D4" .
Part 3AT-6 5
❏ AT-218, "A/T Does Not Shift: D4 → D3 , When OD OFF" .
❏ AT-219, "
A/T Does Not Shift: D3 → 22 , When Selector Lever “D” → “2” Position" .
❏ AT-221, "
A/T Does Not Shift: 22 → 11 , When Selector Lever “2” → “1” Position" .
❏ AT-223, "
Vehicle Does Not Decelerate by Engine Brake" .
❏ Perform self-diagnosis. Enter checks for detected items. AT-8 2
, AT-9 0 .
❏ AT - 9 4 , "
DTC U1000 CAN COMMUNICATION LINE" .
❏ AT - 9 7 , "
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH" .
❏ AT-102, "
DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT" .
❏ AT-107, "
DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)" .
❏ AT - 11 3 , "
DTC P0725 ENGINE SPEED SIGNAL" .
❏ AT - 11 7 , "
DTC P0731 A/T 1ST GEAR FUNCTION"
❏ AT-121, "DTC P0732 A/T 2ND GEAR FUNCTION" .
❏ AT-124, "
DTC P0733 A/T 3RD GEAR FUNCTION" .
❏ AT-128, "
DTC P0734 A/T 4TH GEAR FUNCTION" .
❏ AT-134, "
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE" .
❏ AT-139, "
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)" .
❏ AT-145, "
DTC P0745 LINE PRESSURE SOLENOID VALVE" .
❏ AT-151, "
DTC P0750 SHIFT SOLENOID VALVE A" .
❏ AT-156, "
DTC P0755 SHIFT SOLENOID VALVE B" .
❏ AT-161, "
DTC P1760 OVERRUN CLUTCH SOLENOID VALVE" .
❏ AT-166, "
DTC VEHICLE SPEED SENSOR MTR" .
❏ AT-170, "
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)" .
❏ AT-176, "
DTC TURBINE REVOLUTION SENSOR" .
❏ AT-182, "
CONTROL UNIT (RAM), CONTROL UNIT (ROM)" .
❏ AT-183, "
MAIN POWER SUPPLY AND GROUND CIRCUIT" .
5.❏ For self-diagnosis NG items, inspect each component. Repair or replace the damaged parts.AT-8 2
,
AT-9 1
6.❏ Perform “Road Test”.AT-5 8
7.❏ Perform the Diagnostic Procedures for all remaining items marked NG. Repair or replace the damaged parts.
Refer to the Symptom Chart when you perform the procedures. (The chart also shows some other possible
symptoms and the component inspection orders.)AT-6 8
8.❏ Erase DTC from TCM and ECM memories.AT-8 3,
AT-9 3

TROUBLE DIAGNOSIS
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Revision: June 20062007 Versa
5. Start engine and measure line pressure at idle and stall speed.
CAUTION:

Keep the brake pedal pressed all the way down during
measurement.

When measuring the line pressure at the stall speed,
refer to AT-53, "
STALL TEST" .
Line Pressure
Judgement of Line Pressure Test
SAT4 9 3G
Engine speedLine pressure [kPa (kg/cm2 , psi)]
D, 2nd and 1st positions R position
Idle speed 500 (5.1, 73) 778 (7.9, 113)
Stall speed 1,173 (12.0, 170) 1,825 (18.6, 265)
Judgement Suspected parts
At idleLine pressure is low in all positions.

Oil pump wear

Control piston damage

Pressure regulator valve or plug sticking

Spring for pressure regulator valve damaged

Fluid pressure leakage between oil strainer and pressure regulator valve

Clogged strainer
Line pressure is low in particular posi-
tion.

Fluid pressure leakage between manual valve and particular clutch

For example, line pressure is:
− Low in “R” and “1” positions, but
− Normal in “D”, and “2” positions.
Therefore, fluid leakage exists at or around low and reverse brake circuit.
Refer to AT - 2 2 , "
CLUTCH AND BAND CHART" .
Line pressure is high.

Accelerator pedal position signal malfunction

A/T fluid temperature sensor damaged

Line pressure solenoid valve sticking

Short circuit of line pressure solenoid valve circuit

Pressure modifier valve sticking

Pressure regulator valve or plug sticking

Open in dropping resistor circuit
At stall
speedLine pressure is low.

Accelerator pedal position signal malfunction

Line pressure solenoid valve sticking

Short circuit of line pressure solenoid valve circuit

Pressure regulator valve or plug sticking

Pressure modifier valve sticking

Pilot valve sticking