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TRANSMISSION/TRANSAXLE
AT
A
B
SECTION
AUTOMATIC TRANSAXLE AT
D
E
CONTENTS
SERVICE INFORMATION ........................... 5
. One or Two Trip Detection Logic of OBD-II ............39. F
OBD-II Diagnostic Trouble Code (DTC) .................39.
INDEX FOR DTC ................................................ 5
. Malfunction Indicator Lamp (MIL) ...........................41
.
Alphabetical Index .................................................... 5
. G
DTC No. Index ......................................................... 5
. TROUBLE DIAGNOSIS .................................... 42
DTC Inspection Priority Chart .................................42 .
PRECAUTIONS .................................................. 7
. Fail-Safe .................................................................42
.
Precaution for Supplemental Restraint System How to Perform Trouble Diagnosis for Quick and H
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Accurate Repair ......................................................43 .
SIONER" .................................................................. 7
. A/T Electrical Parts Location ..................................49 .
Precaution Necessary for Steering Wheel Rota- Circuit Diagram .......................................................50 . I
tion After Battery Disconnect .................................... 7 . Inspections Before Trouble Diagnosis ....................51 .
Precaution for On Board Diagnosis (OBD) System Road Test ...............................................................55.
of A/T and Engine .................................................... 8
. Check Before Engine Is Started .............................56 . J
Precaution ................................................................ 8
. Check at Idle ...........................................................56.
Service Notice or Precaution .................................... 9 . Cruise Test - Part 1 ................................................58 .
Cruise Test - Part 2 ................................................61 .
PREPARATION .................................................11
. Cruise Test - Part 3 ................................................62 . K
Special Service Tool .............................................. 11
. Vehicle Speed at Which Gear Shifting Occurs .......64 .
Commercial Service Tool ....................................... 14
. Vehicle Speed at Which Lock-up Occurs/Releas-
es ............................................................................64
. L
A/T FLUID ..........................................................17
.
Symptom Chart .......................................................65 .
Checking A/T Fluid ................................................. 17
.
TCM Terminal and Reference Value ......................77 .
Changing A/T Fluid ................................................ 17
.
CONSULT-III Function (TRANSMISSION) .............79 . M
A/T Fluid Cooler Cleaning ...................................... 18
.
Diagnosis Procedure without CONSULT-III ...........83 .
A/T CONTROL SYSTEM ...................................21
.
Cross-Sectional View ............................................. 21.
DTC U1000 CAN COMMUNICATION LINE ..... 88
Description ..............................................................88
. N
Shift Mechanism ..................................................... 22
.
On Board Diagnosis Logic ......................................88 .
TCM Function ......................................................... 30
.
Possible Cause .......................................................88
.
CAN Communication .............................................. 31 .
DTC Confirmation Procedure .................................88 . O
Input/Output Signal of TCM .................................... 31 .
Wiring Diagram - AT - CAN ....................................89 .
Line Pressure Control ............................................ 32.
Diagnosis Procedure ..............................................90 .
Shift Control ........................................................... 33
.
Lock-up Control ...................................................... 34
. DTC P0705 PARK/NEUTRAL POSITION P
Engine Brake Control (Overrun Clutch Control) ..... 35 . (PNP) SWITCH .................................................. 91
Control Valve .......................................................... 37
.
Description ..............................................................91
.
Centrifugal Cancel Mechanism .............................. 37 .
CONSULT-III Reference Value in Data Monitor
ON BOARD DIAGNOSTIC (OBD) SYSTEM .....39
. Mode .......................................................................91
.
Introduction ............................................................ 39
. On Board Diagnosis Logic ......................................91 .
OBD-II Function for A/T System ............................. 39 . Possible Cause .......................................................91.
Revision: October 2008 AT-1 2009 Versa
DTC Confirmation Procedure ................................ 91. Description ........................................................... 119
.
Wiring Diagram - AT - PNP/SW ............................. 92 . CONSULT-III Reference Value in Data Monitor
Diagnosis Procedure ............................................. 93
. Mode .................................................................... 119
.
Component Inspection ........................................... 95
. On Board Diagnosis Logic ................................... 119 .
Possible Cause .................................................... 119 .
DTC P0710 A/T FLUID TEMPERATURE SEN- DTC Confirmation Procedure ............................... 119 .
SOR CIRCUIT ................................................... 96
. Diagnosis Procedure ............................................ 120 .
Description ............................................................. 96
.
CONSULT-III Reference Value in Data Monitor DTC P0740 TORQUE CONVERTER CLUTCH
Mode ...................................................................... 96
. SOLENOID VALVE ......................................... 124
.
On Board Diagnosis Logic ..................................... 96 . Description ........................................................... 124
.
Possible Cause ...................................................... 96. CONSULT-III Reference Value in Data Monitor
DTC Confirmation Procedure ................................ 96 . Mode .................................................................... 124
.
Wiring Diagram - AT - FTS .................................... 97 . On Board Diagnosis Logic ................................... 124 .
Diagnosis Procedure ............................................. 97 . Possible Cause .................................................... 124 .
Component Inspection ..........................................100 . DTC Confirmation Procedure ............................... 124 .
Wiring Diagram - AT - TCV .................................. 125 .
DTC P0720 VEHICLE SPEED SENSOR A/T Diagnosis Procedure ............................................ 126 .
(REVOLUTION SENSOR) .............................. 101
. Component Inspection ......................................... 127 .
Description ............................................................101
.
CONSULT-III Reference Value in Data Monitor DTC P0744 A/T TCC S/V FUNCTION (LOCK-
Mode .....................................................................101
. UP) ................................................................... 129
.
On Board Diagnosis Logic ....................................101 . Description ........................................................... 129
.
Possible Cause .....................................................101 . CONSULT-III Reference Value in Data Monitor
DTC Confirmation Procedure ...............................101 . Mode .................................................................... 129
.
Wiring Diagram - AT - VSSA/T .............................102 . On Board Diagnosis Logic ................................... 129 .
Diagnosis Procedure ............................................103 . Possible Cause .................................................... 129 .
DTC Confirmation Procedure ............................... 129 .
DTC P0725 ENGINE SPEED SIGNAL ........... 106
. Diagnosis Procedure ............................................ 130 .
Description ............................................................106
.
CONSULT-III Reference Value in Data Monitor DTC P0745 LINE PRESSURE SOLENOID
Mode .....................................................................106
. VALVE ............................................................. 134
.
On Board Diagnosis Logic ....................................106 . Description ........................................................... 134
.
Possible Cause .....................................................106 . CONSULT-III Reference Value in Data Monitor
DTC Confirmation Procedure ...............................106 . Mode .................................................................... 134
.
Wiring Diagram - AT - ENGSS .............................107 . On Board Diagnosis Logic ................................... 134 .
Diagnosis Procedure ............................................108 . Possible Cause .................................................... 134 .
DTC Confirmation Procedure ............................... 134 .
DTC P0731 A/T 1ST GEAR FUNCTION ........ 110
. Wiring Diagram - AT - LPSV ................................ 135 .
Description ............................................................110
. Diagnosis Procedure ............................................ 136 .
On Board Diagnosis Logic ....................................110 . Component Inspection ......................................... 138 .
Possible Cause .....................................................110
.
DTC Confirmation Procedure ...............................110 . DTC P0750 SHIFT SOLENOID VALVE A ....... 139
.
Diagnosis Procedure ............................................111 . Description ........................................................... 139
.
CONSULT-III Reference Value in Data Monitor
DTC P0732 A/T 2ND GEAR FUNCTION ........ 113
. Mode .................................................................... 139
.
Description ............................................................113
. On Board Diagnosis Logic ................................... 139 .
On Board Diagnosis Logic ....................................113 . Possible Cause .................................................... 139 .
Possible Cause .....................................................113
. DTC Confirmation Procedure ............................... 139 .
DTC Confirmation Procedure ...............................113 . Wiring Diagram - AT - SSV/A ............................... 140 .
Diagnosis Procedure ............................................114 . Diagnosis Procedure ............................................ 141 .
DTC P0733 A/T 3RD GEAR FUNCTION ........ 116
. Component Inspection ......................................... 142 .
Description ............................................................116
. DTC P0755 SHIFT SOLENOID VALVE B ....... 144
.
On Board Diagnosis Logic ....................................116 . Description ........................................................... 144
.
Possible Cause .....................................................116
. CONSULT-III Reference Value in Data Monitor
DTC Confirmation Procedure ...............................116 . Mode .................................................................... 144
.
Diagnosis Procedure ............................................117 . On Board Diagnosis Logic ................................... 144 .
DTC P0734 A/T 4TH GEAR FUNCTION ........ 119
. Possible Cause .................................................... 144 .
DTC Confirmation Procedure ............................... 144 .
Revision: October 2008 AT-2 2009 Versa
Wiring Diagram - AT - SSV/B ............................... 145
. Diagnosis Procedure ............................................ 170
.
Diagnosis Procedure ............................................ 146
. A
Component Inspection ......................................... 147
. PNP, OD SWITCH AND CLOSED THROT-
TLE, WIDE OPEN THROTTLE POSITION
DTC P1760 OVERRUN CLUTCH SOLENOID SIGNAL CIRCUIT ............................................ 172
B
VALVE ............................................................. 149
. CONSULT-III Reference Value in Data Monitor
Description ........................................................... 149
. Mode ..................................................................... 172
.
CONSULT-III Reference Value in Data Monitor TCM Terminal and Reference Value .................... 172 .
Mode .................................................................... 149
. Diagnosis Procedure ............................................ 172 . AT
On Board Diagnosis Logic ................................... 149 . Component Inspection .......................................... 176 .
Possible Cause .................................................... 149.
DTC Confirmation Procedure ............................... 149 . SHIFT POSITION INDICATOR CIRCUIT ........ 177 D
Wiring Diagram - AT - OVRCSV .......................... 150 . Description ............................................................ 177
.
Diagnosis Procedure ............................................ 151 . CONSULT-III Reference Value in Data Monitor
Component Inspection ......................................... 152 . Mode ..................................................................... 177
.
Diagnosis Procedure ............................................ 177 . E
DTC VEHICLE SPEED SENSOR MTR ........... 154
.
Description ........................................................... 154
. TROUBLE DIAGNOSIS FOR SYMPTOMS .... 178
CONSULT-III Reference Value in Data Monitor Wiring Diagram - AT - NONDTC .......................... 178 . F
Mode .................................................................... 154
. OD OFF Indicator Lamp Does Not Come On ....... 181 .
On Board Diagnosis Logic ................................... 154 . Engine Cannot Be Started in "P" and "N" Position 183 ..
Possible Cause .................................................... 154. In "P" Position, Vehicle Moves Forward or Back-
G
DTC Confirmation Procedure ............................... 154 . ward When Pushed .............................................. 184 .
Wiring Diagram - AT - VSSMTR .......................... 155 . In "N" Position, Vehicle Moves ............................. 184 .
Diagnosis Procedure ............................................ 156 . Large Shock "N" "R" Position ........................... 185 .
Vehicle Does Not Creep Backward in "R" Position 186 .. H
DTC BATT/FLUID TEMP SEN (A/T FLUID Vehicle Does Not Creep Forward in "D", "2" or "1"
TEMP SENSOR CIRCUIT AND TCM POWER Position ................................................................. 187
.
SOURCE) ........................................................ 157
. Vehicle Cannot Be Started from D1 ...................... 188 . I
Description ........................................................... 157
. A/T Does Not Shift: D1 D2or Does Not Kick-
CONSULT-III Reference Value in Data Monitor down: D4 D2 ...................................................... 190 .
Mode .................................................................... 157
. A/T Does Not Shift: D2 D3 ................................. 192 . J
On Board Diagnosis Logic ................................... 157 . A/T Does Not Shift: D3 D4 ................................. 193 .
Possible Cause .................................................... 157. A/T Does Not Perform Lock-up ............................ 194 .
DTC Confirmation Procedure ............................... 157 . A/T Does Not Hold Lock-up Condition .................. 195 .
Wiring Diagram - AT - BA/FTS ............................. 158 . Lock-up Is Not Released ...................................... 196 . K
Diagnosis Procedure ............................................ 159 . Engine Speed Does Not Return to Idle (Light
Component Inspection ......................................... 161 . Braking D4 D3) .................................................. 197 .
A/T Does Not Shift: D4 D3, When OD OFF ....... 198 . L
DTC TURBINE REVOLUTION SENSOR ........ 163
. A/T Does Not Shift: D3 22, When Selector Lever
Description ........................................................... 163
. "D" "2" Position ................................................ 199 .
CONSULT-III Reference Value in Data Monitor A/T Does Not Shift: 22 11, When Selector Lever M
Mode .................................................................... 163
. "2" "1" Position ................................................. 200 .
On Board Diagnosis Logic ................................... 163 . Vehicle Does Not Decelerate by Engine Brake .... 202 .
Possible Cause .................................................... 163. TCM Self-Diagnosis Does Not Activate ................ 205 .
DTC Confirmation Procedure ............................... 163 . N
Wiring Diagram - AT - PT/SEN ............................ 164 . A/T SHIFT LOCK SYSTEM ............................. 207
Diagnosis Procedure ............................................ 165 . Description ............................................................ 207
.
Shift Lock System Parts Location ......................... 207 . O
CONTROL UNIT (RAM), CONTROL UNIT Wiring Diagram - AT - SHIFT ............................... 208 .
(ROM) .............................................................. 168
. Diagnosis Procedure ............................................ 208 .
Description ........................................................... 168
.
On Board Diagnosis Logic ................................... 168 . TRANSMISSION CONTROL MODULE .......... 211 P
Possible Cause .................................................... 168
. Removal and Installation ...................................... 211
.
DTC Confirmation Procedure ............................... 168 .
Diagnosis Procedure ............................................ 168 .
SHIFT CONTROL SYSTEM ............................ 212
Control Device Removal and Installation .............. 212 .
MAIN POWER SUPPLY AND GROUND CIR- Control Device Disassembly and Assembly ......... 215 .
CUIT ................................................................. 169
. Selector Lever Knob Removal and Installation ..... 215 .
Wiring Diagram - AT - MAIN ................................ 169
. Adjustment of A/T Position ................................... 216
.
Revision: October 2008 AT-3 2009 Versa
Checking of A/T Position ......................................216
. Final Drive ............................................................ 336
.
KEY INTERLOCK CABLE .............................. 218
. ASSEMBLY ..................................................... 343
.
Removal and Installation ......................................218
. Assembly (1) ........................................................ 343
.
Adjustment (1) (For HR16DE Engine Models) ..... 344 .
ON-VEHICLE SERVICE ................................. 221
. Adjustment (1) (For MR18DE Engine Models) .... 348 .
Control Valve Assembly and Accumulators ..........221 . Assembly (2) ........................................................ 354
.
Park/Neutral Position (PNP) Switch .....................224 . Adjustment (2) ...................................................... 359
.
Revolution Sensor ................................................226. Assembly (3) ........................................................ 362
.
Turbine Revolution Sensor (Power Train Revolu-
tion Sensor) ..........................................................227
. SERVICE DATA AND SPECIFICATIONS
Differential Side Oil Seal .......................................228. (SDS) ............................................................... 372
.
General Specification ........................................... 372 .
AIR BREATHER HOSE .................................. 231
. Vehicle Speed at Which Gear Shifting Occurs .... 372 .
Removal and Installation ......................................231
. Vehicle Speed at When Lock-up Occurs/Releases
TRANSAXLE ASSEMBLY ............................. 232
. . 372
Stall Speed ........................................................... 373
.
Removal and Installation ......................................232
.
Line Pressure ....................................................... 373
.
OVERHAUL .................................................... 236
. Adjusting shims, Needle Bearings, Thrust Wash-
Component ...........................................................236
. ers and Snap Rings ............................................. 373 .
Oil Channel ...........................................................249
. Control Valves ...................................................... 374
.
Location of Adjusting Shims, Needle Bearings and Accumulator ......................................................... 375
.
Thrust Washers ....................................................252
. Clutches and Brakes ............................................ 375 .
Location of Snap Rings ........................................254 . Final Drive ............................................................ 377
.
Planetary Carrier .................................................. 377
.
DISASSEMBLY .............................................. 256
. Oil Pump .............................................................. 377
.
Disassembly .........................................................256
. Input Shaft ............................................................ 377
.
Reduction Pinion Gear ......................................... 377 .
REPAIR FOR COMPONENT PARTS ............. 274
. Band Servo .......................................................... 377
.
Manual Shaft ........................................................274
. Output Shaft ......................................................... 378
.
Oil Pump ...............................................................277
. Bearing Retainer .................................................. 378.
Control Valve Assembly .......................................280 . Total End Play ...................................................... 378
.
Control Valve Upper Body ....................................289 . Reverse Clutch End Play ..................................... 378 .
Control Valve Lower Body ....................................293 . Removal and Installation ...................................... 378 .
Reverse Clutch .....................................................296
. Shift Solenoid Valves ........................................... 378 .
High Clutch ...........................................................301
. Solenoid Valves ................................................... 379.
Forward and Overrun Clutches ............................306 . A/T Fluid Temperature Sensor ............................. 379 .
Low & Reverse Brake ...........................................313 . Revolution Sensor ................................................ 379 .
Rear Internal Gear and Forward Clutch Hub ........317 . Dropping Resistor ................................................ 379 .
Output Shaft, Output Gear, Idler Gear, Reduction Turbine Revolution Sensor (Power Train Revolu-
Pinion Gear and Bearing Retainer ........................321 . tion Sensor) .......................................................... 379
.
Band Servo Piston Assembly ...............................330 .
Revision: October 2008 AT-4 2009 Versa
INDEX FOR DTC
< SERVICE INFORMATION >
SERVICE INFORMATION A
INDEX FOR DTC
Alphabetical Index INFOID:0000000004305286
B
NOTE:
If DTC "CAN COMM CIRCUIT" is displayed with other DTCs, first perform the trouble diagnosis for
DTC "CAN COMM CIRCUIT". Refer to AT-88. AT
Items DTC*1
Reference page D
(CONSULT-III screen terms) CONSULT-III or GST
A/T 1ST GR FNCTN P0731 AT-110
A/T 2ND GR FNCTN P0732 AT-113 E
A/T 3RD GR FNCTN P0733 AT-116
A/T 4TH GR FNCTN P0734 AT-119
A/T TCC S/V FNCTN P0744 AT-129 F
ATF TEMP SEN/CIRC P0710 AT-96
BATT/FLUID TEMP SEN -- AT-157
G
CAN COMM CIRCUIT U1000 AT-88
CONTROL UNIT (RAM) -- AT-168
CONTROL UNIT (ROM) -- AT-168 H
ENGINE SPEED SIG P0725 AT-106
LINE PRESSURE S/V P0745 AT-134
I
OVERRUN CLUTCH S/V P1760 AT-149
PNP SW/CIRC P0705 AT-91
SHIFT SOLENOID/V A* 2 P0750 AT-139 J
SHIFT SOLENOID/V B*2 P0755 AT-144
T/C CLUTCH SOL/V P0740 AT-124
K
TURBINE SENSOR -- AT-163
VHCL SPEED SEN-A/T*3 P0720 AT-101
VHCL SPEED SEN-MTR -- AT-154 L
*1: These numbers is prescribed by SAE J2012.
*2: When the fail-safe operation occurs, the MIL illuminates.
M
*3: The MIL illuminates when both the "Revolution sensor signal" and the "Vehicle speed sensor signal" meet the fail-safe condition at
the same time.
DTC No. Index INFOID:0000000004305287
N
NOTE:
If DTC "CAN COMM CIRCUIT" is displayed with other DTCs, first perform the trouble diagnosis for
DTC "CAN COMM CIRCUIT". Refer to AT-88. O
DTC*1 Items
Reference page P
CONSULT-III or GST (CONSULT-III screen terms)
P0705 PNP SW/CIRC AT-91
P0710 ATF TEMP SEN/CIRC AT-96
P0720 3 AT-101
VHCL SPEED SEN-A/T*
P0725 ENGINE SPEED SIG AT-106
P0731 A/T 1ST GR FNCTN AT-110
Revision: October 2008 AT-5 2009 Versa
INDEX FOR DTC
< SERVICE INFORMATION >
DTC*1 Items
Reference page
CONSULT-III or GST (CONSULT-III screen terms)
P0732 A/T 2ND GR FNCTN AT-113
P0733 A/T 3RD GR FNCTN AT-116
P0734 A/T 4TH GR FNCTN AT-119
P0740 T/C CLUTCH SOL/V AT-124
P0744 A/T TCC S/V FNCTN AT-129
P0745 LINE PRESSURE S/V AT-134
P0750 2 AT-139
SHIFT SOLENOID/V A*
P0755 SHIFT SOLENOID/V B*2 AT-144
P1760 OVERRUN CLUTCH S/V AT-149
U1000 CAN COMM CIRCUIT AT-88
-- BATT/FLUID TEMP SEN AT-157
-- CONTROL UNIT (RAM) AT-168
-- CONTROL UNIT (ROM) AT-168
-- TURBINE SENSOR AT-163
-- VHCL SPEED SEN-MTR AT-154
*1: These numbers is prescribed by SAE J2012.
*2: When the fail-safe operation occurs, the MIL illuminates.
*3: The MIL illuminates when both the "Revolution sensor signal" and the "Vehicle speed sensor signal" meet the fail-safe condition at
the same time.
Revision: October 2008 AT-6 2009 Versa
PRECAUTIONS
< SERVICE INFORMATION >
PRECAUTIONS
A
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER" INFOID:0000000004803451
B
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 AT
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. D
WARNING:
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