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C TRANSMISSION/TRANSAXLE
A
B
SECTION
AUTOMATIC TRANSAXLE AT
D
E
CONTENTS
INDEX FOR DTC ....................................................... 5 . Circuit Diagram ...................................................... 53
. F
Alphabetical Index ................................................... 5
. Inspections Before Trouble Diagnosis ................... 54 .
DTC No. Index ........................................................ 6
. Check Before Engine is Started ............................. 58 .
PRECAUTIONS ......................................................... 7 . Check at Idle .......................................................... 58
. G
Precautions for Supplemental Restraint System Cruise Test - Part 1 ................................................ 60
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Cruise Test - Part 2 ................................................ 61
.
SIONER" ................................................................. 7
. Cruise Test - Part 3 ................................................ 62
.
H
Precautions for On Board Diagnostic (OBD) System Shift Schedule ....................................................... 63
.
of A/T and Engine ................................................... 7. Symptom Chart ...................................................... 64
.
Precautions for A/T Assembly or TCM Replacement 8 ..... TCM Input/Output Signal Reference Values .......... 71 .
Precautions ............................................................. 9
. CONSULT-II Function (TCM) ................................. 74 . I
Service Notice or Precautions ................................11 . Diagnostic Procedure Without CONSULT-II .......... 80 .
Wiring Diagrams and Trouble Diagnosis ................11 . DTC U1000 CAN COMMUNICATION LINE ............. 83 .
PREPARATION ........................................................ 12 . Description ............................................................. 83
. J
Special Service Tools ............................................ 12 . On Board Diagnosis Logic ..................................... 83 .
Commercial Service Tools ..................................... 14 . Possible Cause ...................................................... 83
.
A/T FLUID ................................................................ 15
. DTC Confirmation Procedure ................................ 83 .
K
Changing A/T Fluid ............................................... 15 . Wiring Diagram -- AT -- CAN ............................... 84 .
Checking A/T Fluid ................................................ 15 . Diagnostic Procedure ............................................ 85 .
A/T CONTROL SYSTEM ......................................... 16 . DTC P0500 VEHICLE SPEED SENSOR MTR ........ 86 .
Cross-Sectional View ............................................ 16 . Description ............................................................. 86
. L
Shift Mechanism .................................................... 17. On Board Diagnosis Logic ..................................... 86 .
TCM Function ........................................................ 34
. Possible Cause ...................................................... 86
.
Input/Output Signal of TCM ................................... 35 . DTC Confirmation Procedure ................................ 86 . M
CAN Communication ............................................. 35 . Diagnostic Procedure ............................................ 87 .
Line Pressure Control ........................................... 36 . DTC P0613 TCM PROCESSOR .............................. 88 .
Shift Control .......................................................... 36
. Description ............................................................. 88
.
Lock-Up Control .................................................... 38. On Board Diagnosis Logic ..................................... 88 .
ON BOARD DIAGNOSTIC (OBD) SYSTEM ........... 40 . Possible Cause ...................................................... 88
.
Introduction ........................................................... 40
. DTC Confirmation Procedure ................................ 88 .
OBD-II Function for A/T System ............................ 40 . Diagnostic Procedure ............................................ 89 .
One or Two Trip Detection Logic of OBD-II ........... 40 . DTC P0705 PARK/NEUTRAL POSITION SWITCH... 90
OBD-II Diagnostic Trouble Code (DTC) ................ 40 . Description ............................................................. 90
.
Malfunction Indicator Lamp (MIL) .......................... 43 . On Board Diagnosis Logic ..................................... 90 .
TROUBLE DIAGNOSIS ........................................... 44 . Possible Cause ...................................................... 90
.
DTC Inspection Priority Chart ............................... 44 . DTC Confirmation Procedure ................................ 90 .
Fail-Safe ................................................................ 44
. Wiring Diagram -- AT -- PNP/SW ........................ 91 .
How To Perform Trouble Diagnosis For Quick and Diagnostic Procedure ............................................ 92 .
Accurate Repair .................................................... 47. Component Inspection ........................................... 94 .
A/T Electrical Parts Location ................................. 52 . DTC P0710 A/T FLUID TEMPERATURE SENSOR
Revision: July 2005 AT-1 2005 Maxima
CIRCUIT ................................................................... 95
. Possible Cause .................................................... 124
.
Description ............................................................. 95
. DTC Confirmation Procedure ............................... 124 .
On Board Diagnosis Logic ..................................... 95 . Wiring Diagram -- AT -- 3RDSIG ....................... 126 .
Possible Cause ...................................................... 95 . Diagnostic Procedure ........................................... 128 .
DTC Confirmation Procedure ................................ 95 . DTC P0734 A/T 4TH GEAR FUNCTION ................ 130 .
Wiring Diagram -- AT -- FTS ................................ 96 . Description ........................................................... 130
.
Diagnostic Procedure ............................................ 97 . On Board Diagnosis Logic ................................... 130 .
Component Inspection ........................................... 99 . Possible Cause .................................................... 130
.
DTC P0711 FLUID TEMPERATURE SENSOR PER- DTC Confirmation Procedure ............................... 130 .
FORMANCE ........................................................... 100 . Wiring Diagram -- AT -- 4THSIG ........................ 132 .
Description ........................................................... 100
. Diagnostic Procedure ........................................... 133 .
On Board Diagnosis Logic ................................... 100 . DTC P0735 A/T 5TH GEAR FUNCTION ................ 135 .
Possible Cause .................................................... 100 . Description ........................................................... 135
.
DTC Confirmation Procedure .............................. 100 . On Board Diagnosis Logic ................................... 135 .
Wiring Diagram -- AT -- FTSP ........................... 101 . Possible Cause .................................................... 135
.
Diagnostic Procedure .......................................... 102 . DTC Confirmation Procedure ............................... 135 .
Component Inspection ......................................... 104 . Wiring Diagram -- AT -- 5THSIG ........................ 137 .
DTC P0717 TURBINE REVOLUTION SENSOR CIR- Diagnostic Procedure ........................................... 139 .
CUIT ....................................................................... 105
. DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) .141
Description ........................................................... 105
. Description ........................................................... 141
.
On Board Diagnosis Logic ................................... 105 . On Board Diagnosis Logic ................................... 141 .
Possible Cause .................................................... 105 . Possible Cause .................................................... 141
.
DTC Confirmation Procedure .............................. 105 . DTC Confirmation Procedure ............................... 141 .
Wiring Diagram -- AT -- TRSC ........................... 106 . Wiring Diagram -- AT -- TCCSIG ....................... 142 .
Diagnostic Procedure .......................................... 107 . Diagnostic Procedure ........................................... 143 .
Component Inspection ......................................... 108 . DTC P0745 PRESSURE CONTROL SOLENOID
DTC P0722 VEHICLE SPEED SENSOR A/T (REV- VALVE A (LINE PRESSURE) ................................. 144 .
OLUTION SENSOR) CIRCUIT ............................... 109 . Description ........................................................... 144
.
Description ........................................................... 109
. On Board Diagnosis Logic ................................... 144 .
On Board Diagnosis Logic ................................... 109 . Possible Cause .................................................... 144
.
Possible Cause .................................................... 109 . DTC Confirmation Procedure ............................... 144 .
DTC Confirmation Procedure .............................. 109 . Wiring Diagram -- AT -- PC/A ............................ 145 .
Wiring Diagram -- AT -- VSSATC ...................... 110 . Diagnostic Procedure ........................................... 146 .
Diagnostic Procedure ...........................................111 . Component Inspection ......................................... 148 .
Component Inspection ......................................... 112 . DTC P0750 SHIFT SOLENOID VALVE A .............. 149 .
DTC P0726 ENGINE SPEED INPUT CIRCUIT PER- Description ........................................................... 149
.
FORMANCE ........................................................... 113 . On Board Diagnosis Logic ................................... 149 .
Description ........................................................... 113
. Possible Cause .................................................... 149
.
On Board Diagnosis Logic ................................... 113 . DTC Confirmation Procedure ............................... 149 .
Possible Cause .................................................... 113 . Wiring Diagram -- AT -- SSV/A .......................... 150 .
DTC Confirmation Procedure .............................. 113 . Diagnostic Procedure ........................................... 151 .
Diagnostic Procedure .......................................... 113 . Component Inspection ......................................... 153 .
DTC P0731 A/T 1ST GEAR FUNCTION ................ 115 . DTC P0755 SHIFT SOLENOID VALVE B .............. 154 .
Description ........................................................... 115
. Description ........................................................... 154
.
On Board Diagnosis Logic ................................... 115 . On Board Diagnosis Logic ................................... 154 .
Possible Cause .................................................... 115 . Possible Cause .................................................... 154
.
DTC Confirmation Procedure .............................. 115 . DTC Confirmation Procedure ............................... 154 .
Wiring Diagram -- AT -- 1STSIG ........................ 116 . Wiring Diagram -- AT -- SSV/B .......................... 155 .
Diagnostic Procedure .......................................... 117 . Diagnostic Procedure ........................................... 156 .
DTC P0732 A/T 2ND GEAR FUNCTION ............... 118 . Component Inspection ......................................... 158 .
Description ........................................................... 118
. DTC P0760 SHIFT SOLENOID VALVE C .............. 159 .
On Board Diagnosis Logic ................................... 118 . Description ........................................................... 159
.
Possible Cause .................................................... 118 . On Board Diagnosis Logic ................................... 159 .
DTC Confirmation Procedure .............................. 118 . Possible Cause .................................................... 159
.
Wiring Diagram -- AT -- 2NDSIG ....................... 120 . DTC Confirmation Procedure ............................... 159 .
Diagnostic Procedure .......................................... 122 . Wiring Diagram -- AT -- SSV/C .......................... 160 .
DTC P0733 A/T 3RD GEAR FUNCTION ............... 124 . Diagnostic Procedure ........................................... 161 .
Description ........................................................... 124
. Component Inspection ......................................... 163 .
On Board Diagnosis Logic ................................... 124 . DTC P0762 SHIFT SOLENOID VALVE C STUCK ON .164
Revision: July 2005 AT-2 2005 Maxima
Description .......................................................... 164
. CONSULT-II Reference Value in Data Monitor Mode
On Board Diagnosis Logic .................................. 164 . . 198 A
Possible Cause ................................................... 164
. On Board Diagnosis Logic ................................... 198 .
DTC Confirmation Procedure .............................. 164 . Possible Cause .................................................... 198
.
Wiring Diagram -- AT -- SSV/CS ....................... 165 . DTC Confirmation Procedure .............................. 198 . B
Diagnostic Procedure .......................................... 166 . Wiring Diagram -- AT -- MMSW ........................ 199 .
Component Inspection ........................................ 168 . Diagnostic Procedure .......................................... 201 .
DTC P0765 SHIFT SOLENOID VALVE D ............. 169 . Component Inspection ......................................... 203 .
Description .......................................................... 169
. Position Indicator ................................................. 203
. AT
On Board Diagnosis Logic .................................. 169 . DTC P0882 TCM POWER INPUT SIGNAL ........... 204 .
Possible Cause ................................................... 169
. Description ........................................................... 204
.
DTC Confirmation Procedure .............................. 169 . On Board Diagnosis Logic ................................... 204 . D
Wiring Diagram -- AT -- SSV/D ......................... 170 . Possible Cause .................................................... 204
.
Diagnostic Procedure .......................................... 171 . DTC Confirmation Procedure .............................. 204 .
Component Inspection ........................................ 173 . Wiring Diagram -- AT -- PWR/IN ....................... 205 . E
DTC P0770 SHIFT SOLENOID VALVE E ............. 174 . Diagnostic Procedure .......................................... 207 .
Description .......................................................... 174
. Component Inspection ......................................... 208 .
On Board Diagnosis Logic .................................. 174 . DTC P1726 ELECTRIC THROTTLE CONTROL
Possible Cause ................................................... 174
. SYSTEM ................................................................. 209
. F
DTC Confirmation Procedure .............................. 174 . Description ........................................................... 209
.
Wiring Diagram -- AT -- SSV/E ......................... 175 . TROUBLE DIAGNOSIS FOR SYMPTOMS ........... 210 .
Diagnostic Procedure .......................................... 176 . A/T CHECK Indicator Lamp does not come on ... 210 . G
Component Inspection ........................................ 178 . Engine Cannot Be Started In "P" or "N" Position . 212
DTC P0775 PRESSURE CONTROL SOLENOID In "P" Position, Vehicle Moves When Pushed ..... 212 .
VALVE B (SHIFT PRESSURE) .............................. 179 . In "N" Position, Vehicle Moves ............................. 213 . H
Description .......................................................... 179
. Large Shock ("N" to "D" Position) ........................ 214 .
On Board Diagnosis Logic .................................. 179 . Vehicle Does Not Creep Backward In "R" Position 215 .
Possible Cause ................................................... 179
. Vehicle Does Not Creep Forward In "D" Position . 216
I
DTC Confirmation Procedure .............................. 179 . Vehicle Cannot Be Started From D1 .................... 217 .
Wiring Diagram -- AT -- PC/B ............................ 180 . A/T Does Not Shift: D1 D2 ............................... 217 .
Diagnostic Procedure .......................................... 181 . A/T Does Not Shift: D2 D3 ............................... 218 .
Component Inspection ........................................ 183 . A/T Does Not Shift: D3 D4 ............................... 219 . J
DTC P0780 SHIFT ................................................. 184 . A/T Does Not Shift: D4 D5 ............................... 220 .
Description .......................................................... 184
. A/T Does Not Perform Lock-up ........................... 221 .
On Board Diagnosis Logic .................................. 184 . A/T Does Not Hold Lock-up Condition ................. 222 . K
Possible Cause ................................................... 184
. Lock-up Is Not Released ..................................... 223 .
DTC Confirmation Procedure .............................. 184 . Cannot Be Changed to Manual Mode ................. 224 .
Wiring Diagram -- AT -- SFTFNC ...................... 185 . A/T Does Not Shift: 5th gear 4th gear ............. 225 . L
Diagnostic Procedure .......................................... 187 . A/T Does Not Shift: 4th gear 3rd gear ............. 226 .
DTC P0795 PRESSURE CONTROL SOLENOID A/T Does Not Shift: 3rd gear 2nd gear ............ 226 .
VALVE C (TCC AND SHIFT PRESSURE) ............ 188 . A/T Does Not Shift: 2nd gear 1st gear ............ 227 .
Description .......................................................... 188
. Vehicle Does Not Decelerate By Engine Brake ... 228 . M
On Board Diagnosis Logic .................................. 188 . TCM Self-diagnosis Does Not Activate ............... 229 .
Possible Cause ................................................... 188
. SHIFT CONTROL SYSTEM ................................... 231 .
DTC Confirmation Procedure .............................. 188 . Control Device ..................................................... 231
.
Wiring Diagram -- AT -- PC/C ........................... 189 . Control Cable ....................................................... 232
.
Diagnostic Procedure .......................................... 190 . A/T SHIFT LOCK SYSTEM ................................... 233 .
Component Inspection ........................................ 192 . Description ........................................................... 233
.
DTC P0797 PRESSURE CONTROL SOLENOID Shift Lock System Electrical Parts Location ........ 233 .
VALVE C STUCK ON ............................................ 193 . Wiring Diagram -- AT -- SHIFT .......................... 234 .
Description .......................................................... 193
. Shift Lock Control Unit Reference Values ........... 235 .
On Board Diagnosis Logic .................................. 193 . Component Inspection ......................................... 236 .
Possible Cause ................................................... 193
. ON-VEHICLE SERVICE ......................................... 238 .
DTC Confirmation Procedure .............................. 193 . Revolution Sensor Replacement ......................... 238 .
Wiring Diagram -- AT -- PC/CS ......................... 194 . Turbine Revolution Sensor Replacement ............ 238 .
Diagnostic Procedure .......................................... 195 . Park/Neutral Position (PNP) Switch Adjustment . 238
Component Inspection ........................................ 197 . ATF Cooler .......................................................... 239
.
DTC P0826 MANUAL MODE SWITCH CIRCUIT . 198 ATF Cooler Valve ................................................. 239.
Description .......................................................... 198
. Control Cable Adjustment .................................... 240 .
Revision: July 2005 AT-3 2005 Maxima
Side cover ............................................................ 241
. ASSEMBLY ............................................................ 288
.
Control Valve Assembly ....................................... 241 . Assembly (1) ........................................................ 288
.
Terminal cord assembly ....................................... 241 . Adjustment ........................................................... 295
.
TRANSAXLE ASSEMBLY ..................................... 243 . Assembly (2) ........................................................ 296
.
Removal and Installation ..................................... 243 . SERVICE DATA AND SPECIFICATIONS (SDS) ... 312 .
INSPECTION AFTER REMOVAL ........................ 243 . General Specifications ......................................... 312 .
OVERHAUL ............................................................ 245
. Shift Schedule ...................................................... 312
.
Components ........................................................ 245
. Stall Speed ........................................................... 313
.
Locations of Needle Bearings, Bearing Races and Line Pressure ....................................................... 313
.
Thrust Washers ................................................... 251. Time Lag .............................................................. 313
.
DISASSEMBLY ...................................................... 252 . Shift Solenoid Valves ........................................... 313 .
Disassembly ........................................................ 252
. Solenoid Valves ................................................... 314.
REPAIR FOR COMPONENT PARTS ..................... 272 . Clutch and Brakes ................................................ 314 .
Oil Pump, 2nd Coast Brake & 2nd Brake ............ 272 . Final Drive ............................................................ 315
.
One-Way Clutch Outer Race Sub Assembly & 2nd A/T Fluid Temperature Sensor ............................. 316 .
Coast Brake Hub & One-Way Clutch No.1 .......... 278 . Turbine Revolution Sensor ................................... 316 .
Transaxle Case Cover & B5 Brake ...................... 280 . Revolution Sensor ................................................ 316 .
Differential Gear Assembly .................................. 285 .
Revision: July 2005 AT-4 2005 Maxima
INDEX FOR DTC
INDEX FOR DTC PFP:00024
A
Alphabetical Index ECS00A0H
NOTE:
If DTC U1000 is displayed with other DTCs, first perform the trouble diagnosis for DTC U1000. Refer to B
AT-83 .
DTC
OBD-II Except OBD-II AT
Items
Reference page
(CONSULT-II screen terms) CONSULT-II CONSULT-II
only "TRANSMIS-
GST*1 SION" D
A/T 1ST GR FNCTN P0731 P0731 AT-115
A/T 2ND GR FNCTN P0732 P0732 AT-118
A/T 3RD GR FNCTN P0733 P0733 AT-124
E
A/T 4TH GR FNCTN P0734 P0734 AT-130
A/T 5TH GR FNCTN P0735 P0735 AT-135
F
A/T TCC S/V FNCTN P0744 P0744 AT-141
ATF TEMP SEN/CIRC P0710 P0710 AT-95
CAN COMM CIRCUIT U1000 U1000 AT-83 G
ELEC TH CONTROL -- P1726 AT-209
ENG SPD INP PERFOR -- P0726 AT-113
H
FLUID TEMP SEN P0711 P0711 AT-100
MANUAL MODE SWITCH -- P0826 AT-198
PC SOL A(L/PRESS) P0745 P0745 AT-144 I
PC SOL B(SFT/PRS) P0775 P0775 AT-179
PC SOL C(TCC&SFT) P0795 P0795 AT-188
J
PC SOL C STC ON P0797 P0797 AT-193
PNP SW/CIRC P0705 P0705 AT-90
SHIFT P0780 P0780 AT-184 K
SHIFT SOL A P0750 P0750 AT-149
SHIFT SOL B P0755 P0755 AT-154
L
SHIFT SOL C P0760 P0760 AT-159
SHIFT SOL D P0765 P0765 AT-169
SHIFT SOL E P0770 P0770 AT-174 M
SFT SOL C STUCK ON P0762 P0762 AT-164
TCM POWER INPT SIG P0882 P0882 AT-204
TCM PROCESSOR -- P0613 AT-88
TURBINE SENSOR P0717 P0717 AT-105
VEH SPD SE/CIR-MTR -- P0500 AT-86
VHCL SPEED SEN-A/T P0722 P0722 AT-109
*1: These numbers are prescribed by SAE J2012.
Revision: July 2005 AT-5 2005 Maxima
INDEX FOR DTC
DTC No. Index ECS00A0I
NOTE:
If DTC U1000 is displayed with other DTCs, first perform the trouble diagnosis for DTC U1000. Refer to
AT-83 .
DTC
OBD-II Except OBD-II
Items
Reference page
CONSULT-II CONSULT-II (CONSULT-II screen terms)
only "TRANSMIS-
GST*1 SION"
-- P0500 VEH SPD SE/CIR-MTR AT-86
-- P0613 TCM PROCESSOR AT-88
P0705 P0705 PNP SW/CIRC AT-90
P0710 P0710 ATF TEMP SEN/CIRC AT-95
P0711 P0711 FLUID TEMP SEN AT-100
P0717 P0717 TURBINE SENSOR AT-105
P0722 P0722 VHCL SPEED SEN-A/T AT-109
-- P0726 ENG SPD INP PERFOR AT-113
P0731 P0731 A/T 1ST GR FNCTN AT-115
P0732 P0732 A/T 2ND GR FNCTN AT-118
P0733 P0733 A/T 3RD GR FNCTN AT-124
P0734 P0734 A/T 4TH GR FNCTN AT-130
P0735 P0735 A/T 5TH GR FNCTN AT-135
P0744 P0744 A/T TCC S/V FNCTN AT-141
P0745 P0745 PC SOL A(L/PRESS) AT-144
P0750 P0750 SHIFT SOL A AT-149
P0755 P0755 SHIFT SOL B AT-154
P0760 P0760 SHIFT SOL C AT-159
P0762 P0762 SFT SOL C STUCK ON AT-164
P0765 P0765 SHIFT SOL D AT-169
P0770 P0770 SHIFT SOL E AT-174
P0775 P0775 PC SOL B(SFT/PRS) AT-179
P0780 P0780 SHIFT AT-184
P0795 P0795 PC SOL C(TCC&SFT) AT-188
P0797 P0797 PC SOL C STC ON AT-193
-- P0826 MANUAL MODE SWITCH AT-198
P0882 P0882 TCM POWER INPT SIG AT-204
-- P1726 ELEC TH CONTROL AT-209
U1000 U1000 CAN COMM CIRCUIT AT-83
*1: These numbers are prescribed by SAE J2012.
Revision: July 2005 AT-6 2005 Maxima
PRECAUTIONS
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" ECS00A0J
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front AT
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING: D
q To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer. E
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section. F
q Do 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.
G
Precautions for On Board Diagnostic (OBD) System of A/T and Engine ECS00A0K
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration. H
CAUTION:
q Be sure to turn the ignition switch "OFF" and disconnect the negative battery cable before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves, I
etc. will cause the MIL to light up.
q Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connector is free from water, grease, J
dirt, bent terminals, etc.)
q Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. may cause the MIL to light up due to a short circuit. K
q Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to a malfunction of the EGR system or fuel injection system, etc.
q Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and L
ECM before returning the vehicle to the customer.
M
Revision: July 2005 AT-7 2005 Maxima
PRECAUTIONS
Precautions for A/T Assembly or TCM Replacement ECS00A0L
q When replacing A/T assembly or TCM, refer to the pattern table below and initialize TCM if necessary.
TCM INITIALIZATION PATTERNS
TCM A/T assembly Erasing EEPROM in TCM Remarks
Not replaced
Replaced with Not required because the EEPROM in TCM is in the default
Replaced with Not required
new one state.
new or old one
Replaced with
Not replaced
new or old one
Required because data cannot be conformed to previous
Not replaced Required
Replaced with data written in the EEPROM in TCM.
old one Replaced with
new or old one
NOTE:
"Old one" is the TCM or A/T assembly that has been used on other vehicles.
METHOD FOR TCM INITIALIZATION
1. Perform "CONSULT-II SETTING PROCEDURE". Refer to AT-75, "CONSULT-II SETTING PROCEDURE"
.
2. Set the vehicle following the items listed below.
q Ignition switch "ON".
q Selector lever "P" or "N" position.
q Engine not running.
q Vehicle speed is 0 km/h (0 MPH).
q Ignition voltage is more than 10.5V.
q Malfunction was not detected.
3. Touch "WORK SUPPORT".
4. Touch "INITIALIZATION".
5. Initialize TCM following the direction in display.
Revision: July 2005 AT-8 2005 Maxima
PRECAUTIONS
Precautions ECS00A0M
A
q Before connecting or disconnecting the TCM harness con-
nector, turn ignition switch "OFF" and disconnect negative
battery cable. Because battery voltage is applied to TCM
even if ignition switch is turned "OFF". B
AT
D
SEF289H
q When connecting or disconnecting pin connectors into or E
from TCM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on TCM
pin terminal, when connecting pin connectors. F
G
SEF291H
H
q Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions properly I
or not. AT-72, "TCM INSPECTION TABLE".
J
K
MEF040DA
L
q After performing each TROUBLE DIAGNOSIS, perform
"DTC (Diagnostic Trouble Code) CONFIRMATION PROCE-
DURE". M
The DTC should not be displayed in the "DTC CONFIRMA-
TION PROCEDURE" if the repair is completed.
SEF217U
q Always use the specified brand of A/T fluid. Refer to MA-9, "Fluids and Lubricants" .
q Use paper rags not cloth rags during work.
q After replacing the A/T fluid, dispose of the waste oil using the methods prescribed by law, ordinance, etc.
q Before proceeding with disassembly, thoroughly clean the outside of the transaxle. It is important to pre-
vent the internal parts from becoming contaminated by dirt or other foreign matter.
q Disassembly should be done in a clean work area.
Revision: July 2005 AT-9 2005 Maxima
PRECAUTIONS
q Use lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could interfere
with the operation of the transaxle.
q Place disassembled parts in order for easier and proper assembly.
q All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
q Gaskets, seals and O-rings should be replaced any time the transaxle is disassembled.
q It is very important to perform functional tests whenever they are indicated.
q The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent
springs and small parts from becoming scattered or lost.
q Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
q Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings
and seals, or hold bearings and washers in place during assembly. Do not use grease.
q Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
q After overhaul, refill the transaxle with new ATF.
q When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque
converter and ATF cooling system.
Always follow the procedures under "Changing A/T Fluid" in the AT section when changing A/T fluid. Refer
to AT-15, "Changing A/T Fluid" , AT-15, "Checking A/T Fluid" .
Revision: July 2005 AT-10 2005 Maxima
PRECAUTIONS
Service Notice or Precautions ECS00A0N
ATF COOLER SERVICE A
If A/T fluid contains frictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced,
inspect and clean the A/T oil cooler mounted in the radiator or replace the radiator. Flush cooler lines using
cleaning solvent and compressed air after repair. Check Service Bulletins for latest A/T oil cooler cleaning pro- B
cedure. For radiator replacement, refer to CO-12, "RADIATOR" .
OBD-II SELF-DIAGNOSIS
q A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through AT
the blinking pattern of the A/T CHECK indicator or the malfunction indicator lamp (MIL). Refer to the table
on AT-75, "SELF-DIAG RESULT MODE" for the indicator used to display each self-diagnostic result.
q The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM mem- D
ories.
Always perform the procedure on AT-41, "HOW TO ERASE DTC" to complete the repair and avoid
unnecessary blinking of the MIL. E
q For details of OBD-II, refer to EC-49, "ON BOARD DIAGNOSTIC (OBD) SYSTEM" .
q Certain systems and components, especially those related to OBD, may use the new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-62, "HAR- F
NESS CONNECTOR" .
Wiring Diagrams and Trouble Diagnosis ECS00A0O
G
When you read wiring diagrams, refer to the following:
q GI-13, "How to Read Wiring Diagrams".
q PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit. H
When you perform trouble diagnosis, refer to the following:
q GI-9, "How to Follow Trouble Diagnoses".
q GI-25, "How to Perform Efficient Diagnosis for an Electrical Incident". I
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K
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Revision: July 2005 AT-11 2005 Maxima
PREPARATION
PREPARATION PFP:00002
Special Service Tools ECS00A0P
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.) Description
Tool name
-- Measuring line pressure
(J-34301-C)
Oil pressure gauge set
1 --
(J-34301-1)
Oil pressure gauge
2 --
(J-34301-2)
Hoses
3 --
(J-34298)
Adapter
4 --
(J-34282-2)
AAT896
Adapter
5 --
(790-301-1230-A)
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