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AUTOMATIC TRANSMISSION
C TRANSMISSION/TRANSAXLE
A
AUTOMATIC TRANSMISSION
SECTION AT B
AT
D
E
CONTENTS
INDEX FOR DTC ....................................................... 5 . How to Perform Trouble Diagnosis for Quick and F
Alphabetical Index ................................................... 5
. Accurate Repair ..................................................... 46
.
DTC No. Index ........................................................ 6
. A/T Electrical Parts Location ................................. 51 .
PRECAUTIONS ......................................................... 7 . Circuit Diagram ...................................................... 52
. G
Precautions for Supplemental Restraint System Inspections Before Trouble Diagnosis ................... 53 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Check Before Engine Is Started ............................ 57 .
SIONER" ................................................................. 7
. Check at Idle .......................................................... 57
.
H
Precautions for On Board Diagnostic (OBD) System Cruise Test - Part 1 ................................................ 58
.
of A/T and Engine ................................................... 7. Cruise Test - Part 2 ................................................ 60
.
Precautions ............................................................. 8
. Cruise Test - Part 3 ................................................ 61
.
Service Notice or Precautions ................................. 9 . Vehicle Speed at Which Gear Shifting Occurs ...... 62 . I
PREPARATION ........................................................ 10 . Vehicle Speed at Which Lock-up Occurs/Releases 63 ...
Special Service Tools ............................................ 10 . Symptom Chart ...................................................... 64
.
Commercial Service Tools ......................................11 . TCM Input/Output Signal Reference Values .......... 89 . J
A/T FLUID ................................................................ 12
. CONSULT-II Function (A/T) ................................... 90 .
Changing A/T Fluid ............................................... 12 . Diagnostic Procedure without CONSULT-II ......... 102 .
Checking A/T Fluid ................................................ 13 . DTC U1000 CAN COMMUNICATION LINE ........... 104 .
K
A/T Fluid Cooler Cleaning ..................................... 15 . Description ........................................................... 104
.
A/T CONTROL SYSTEM ......................................... 18 . On Board Diagnosis Logic ................................... 104 .
Cross-sectional View (2WD Models) ..................... 18 . Possible Cause .................................................... 104
.
Cross-sectional View (VQ35DE Models for AWD) 19 ... DTC Confirmation Procedure .............................. 104 . L
Cross-sectional View (VK45DE Models for AWD) 20 ... Wiring Diagram -- AT -- CAN ............................. 105 .
Shift Mechanism .................................................... 21. Diagnostic Procedure .......................................... 106 .
TCM Function ........................................................ 32
. DTC P0615 START SIGNAL CIRCUIT .................. 107 . M
CAN Communication ............................................. 33 . Description ........................................................... 107
.
Input/Output Signal of TCM ................................... 33 . CONSULT-II Reference Value ............................. 107 .
Line Pressure Control ........................................... 34 . On Board Diagnosis Logic ................................... 107 .
Shift Control .......................................................... 35
. Possible Cause .................................................... 107
.
Lock-up Control ..................................................... 37
. DTC Confirmation Procedure .............................. 107 .
Engine Brake Control ............................................ 38 . Wiring Diagram -- AT -- STSIG ......................... 108 .
Control Valve ......................................................... 38
. Diagnostic Procedure .......................................... 109 .
ON BOARD DIAGNOSTIC (OBD) SYSTEM ........... 40 . DTC P0700 TCM .....................................................111 .
Introduction ........................................................... 40
. Description ............................................................111
.
OBD-II Function for A/T System ............................ 40 . On Board Diagnosis Logic ....................................111 .
One or Two Trip Detection Logic of OBD-II ........... 40 . Possible Cause .....................................................111
.
OBD-II Diagnostic Trouble Code (DTC) ................ 40 . DTC Confirmation Procedure ...............................111 .
Malfunction Indicator Lamp (MIL) .......................... 43 . Diagnostic Procedure ...........................................111 .
TROUBLE DIAGNOSIS ........................................... 44 . DTC P0705 PARK/NEUTRAL POSITION SWITCH. 112
DTC Inspection Priority Chart ............................... 44 . Description ........................................................... 112
.
Fail-safe ................................................................ 44
. CONSULT-II Reference Value ............................. 112 .
Revision: 2006 December AT-1 2006 FX35/FX45
On Board Diagnosis Logic ................................... 112 . Description ........................................................... 134
.
Possible Cause .................................................... 112. CONSULT-II Reference Value .............................. 134 .
DTC Confirmation Procedure .............................. 112 . On Board Diagnosis Logic ................................... 134 .
Wiring Diagram -- AT -- PNP/SW ...................... 113 . Possible Cause .................................................... 134
.
Diagnostic Procedure .......................................... 114 . DTC Confirmation Procedure ............................... 134 .
DTC P0717 TURBINE REVOLUTION SENSOR ... 116 . Wiring Diagram -- AT -- FTS .............................. 135 .
Description ........................................................... 116
. Diagnostic Procedure ........................................... 136 .
CONSULT-II Reference Value ............................. 116 . Component Inspection ......................................... 138 .
On Board Diagnosis Logic ................................... 116 . DTC P1721 VEHICLE SPEED SENSOR MTR ...... 139 .
Possible Cause .................................................... 116. Description ........................................................... 139
.
DTC Confirmation Procedure .............................. 116 . CONSULT-II Reference Value .............................. 139 .
Diagnostic Procedure .......................................... 117 . On Board Diagnosis Logic ................................... 139 .
DTC P0720 VEHICLE SPEED SENSOR A/T (REV- Possible Cause .................................................... 139
.
OLUTION SENSOR) .............................................. 118 . DTC Confirmation Procedure ............................... 139 .
Description ........................................................... 118
. Diagnostic Procedure ........................................... 140 .
CONSULT-II Reference Value ............................. 118 . DTC P1730 A/T INTERLOCK ................................ 141 .
On Board Diagnosis Logic ................................... 118 . Description ........................................................... 141
.
Possible Cause .................................................... 118. On Board Diagnosis Logic ................................... 141 .
DTC Confirmation Procedure .............................. 118 . Possible Cause .................................................... 141
.
Wiring Diagram -- AT -- VSSA/T ........................ 120 . DTC Confirmation Procedure ............................... 141 .
Diagnostic Procedure .......................................... 121 . Judgement of A/T Interlock .................................. 141 .
DTC P0725 ENGINE SPEED SIGNAL .................. 123 . Diagnostic Procedure ........................................... 142 .
Description ........................................................... 123
. DTC P1731 A/T 1ST ENGINE BRAKING .............. 144 .
CONSULT-II Reference Value ............................. 123 . Description ........................................................... 144
.
On Board Diagnosis Logic ................................... 123 . CONSULT-II Reference Value .............................. 144 .
Possible Cause .................................................... 123. On Board Diagnosis Logic ................................... 144 .
DTC Confirmation Procedure .............................. 123 . Possible Cause .................................................... 144
.
Diagnostic Procedure .......................................... 124 . DTC Confirmation Procedure ............................... 144 .
DTC P0740 TORQUE CONVERTER CLUTCH Diagnostic Procedure ........................................... 145 .
SOLENOID VALVE ................................................ 125 . DTC P1752 INPUT CLUTCH SOLENOID VALVE . 146
Description ........................................................... 125
. Description ........................................................... 146
.
CONSULT-II Reference Value ............................. 125 . CONSULT-II Reference Value .............................. 146 .
On Board Diagnosis Logic ................................... 125 . On Board Diagnosis Logic ................................... 146 .
Possible Cause .................................................... 125. Possible Cause .................................................... 146
.
DTC Confirmation Procedure .............................. 125 . DTC Confirmation Procedure ............................... 146 .
Diagnostic Procedure .......................................... 126 . Diagnostic Procedure ........................................... 147 .
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP). 127 DTC P1754 INPUT CLUTCH SOLENOID VALVE
Description ........................................................... 127
. FUNCTION ............................................................. 148
.
CONSULT-II Reference Value ............................. 127 . Description ........................................................... 148
.
On Board Diagnosis Logic ................................... 127 . CONSULT-II Reference Value .............................. 148 .
Possible Cause .................................................... 127. On Board Diagnosis Logic ................................... 148 .
DTC Confirmation Procedure .............................. 127 . Possible Cause .................................................... 148
.
Diagnostic Procedure .......................................... 128 . DTC Confirmation Procedure ............................... 148 .
DTC P0745 LINE PRESSURE SOLENOID VALVE. 129 Diagnostic Procedure ........................................... 149 .
Description ........................................................... 129
. DTC P1757 FRONT BRAKE SOLENOID VALVE .. 150 .
CONSULT-II Reference Value ............................. 129 . Description ........................................................... 150
.
On Board Diagnosis Logic ................................... 129 . CONSULT-II Reference Value .............................. 150 .
Possible Cause .................................................... 129. On Board Diagnosis Logic ................................... 150 .
DTC Confirmation Procedure .............................. 129 . Possible Cause .................................................... 150
.
Diagnostic Procedure .......................................... 130 . DTC Confirmation Procedure ............................... 150 .
DTC P1705 THROTTLE POSITION SENSOR ...... 131 . Diagnostic Procedure ........................................... 151 .
Description ........................................................... 131
. DTC P1759 FRONT BRAKE SOLENOID VALVE
CONSULT-II Reference Value ............................. 131 . FUNCTION ............................................................. 152
.
On Board Diagnosis Logic ................................... 131 . Description ........................................................... 152
.
Possible Cause .................................................... 131. CONSULT-II Reference Value .............................. 152 .
DTC Confirmation Procedure .............................. 131 . On Board Diagnosis Logic ................................... 152 .
Diagnostic Procedure .......................................... 132 . Possible Cause .................................................... 152
.
DTC P1710 A/T FLUID TEMPERATURE SENSOR DTC Confirmation Procedure ............................... 152 .
CIRCUIT ................................................................. 134
. Diagnostic Procedure ........................................... 153 .
Revision: 2006 December AT-2 2006 FX35/FX45
DTC P1762 DIRECT CLUTCH SOLENOID VALVE 154 . CONSULT-II Reference Value ............................. 171 .
Description .......................................................... 154
. On Board Diagnosis Logic ................................... 171 . A
CONSULT-II Reference Value ............................. 154 . Possible Cause .................................................... 171
.
On Board Diagnosis Logic .................................. 154 . DTC Confirmation Procedure .............................. 171 .
Possible Cause ................................................... 154 . Diagnostic Procedure .......................................... 172 . B
DTC Confirmation Procedure .............................. 154 . DTC P1843 ATF PRESSURE SWITCH 3 .............. 173 .
Diagnostic Procedure .......................................... 155 . Description ........................................................... 173
.
DTC P1764 DIRECT CLUTCH SOLENOID VALVE CONSULT-II Reference Value ............................. 173 .
FUNCTION ............................................................. 156
. On Board Diagnosis Logic ................................... 173 . AT
Description .......................................................... 156
. Possible Cause .................................................... 173
.
CONSULT-II Reference Value ............................. 156 . DTC Confirmation Procedure .............................. 173 .
On Board Diagnosis Logic .................................. 156 . Diagnostic Procedure .......................................... 174 . D
Possible Cause ................................................... 156 . DTC P1845 ATF PRESSURE SWITCH 5 .............. 175 .
DTC Confirmation Procedure .............................. 156 . Description ........................................................... 175
.
Diagnostic Procedure .......................................... 157 . CONSULT-II Reference Value ............................. 175 . E
DTC P1767 HIGH AND LOW REVERSE CLUTCH On Board Diagnosis Logic ................................... 175 .
SOLENOID VALVE ................................................ 158 . Possible Cause .................................................... 175
.
Description .......................................................... 158
. DTC Confirmation Procedure .............................. 175 .
CONSULT-II Reference Value ............................. 158 . Diagnostic Procedure .......................................... 176 . F
On Board Diagnosis Logic .................................. 158 . DTC P1846 ATF PRESSURE SWITCH 6 .............. 177 .
Possible Cause ................................................... 158 . Description ........................................................... 177
.
DTC Confirmation Procedure .............................. 158 . CONSULT-II Reference Value ............................. 177 . G
Diagnostic Procedure .......................................... 159 . On Board Diagnosis Logic ................................... 177 .
DTC P1769 HIGH AND LOW REVERSE CLUTCH Possible Cause .................................................... 177
.
SOLENOID VALVE FUNCTION ............................ 160 . DTC Confirmation Procedure .............................. 177 . H
Description .......................................................... 160
. Diagnostic Procedure .......................................... 178 .
CONSULT-II Reference Value ............................. 160 . MAIN POWER SUPPLY AND GROUND CIRCUIT. 179
On Board Diagnosis Logic .................................. 160 . Wiring Diagram -- AT -- MAIN ........................... 179 .
I
Possible Cause ................................................... 160 . Diagnostic Procedure .......................................... 180 .
DTC Confirmation Procedure .............................. 160 . CLOSED THROTTLE POSITION AND WIDE OPEN
Diagnostic Procedure .......................................... 161 . THROTTLE POSITION CIRCUIT ........................... 183 .
DTC P1772 LOW COAST BRAKE SOLENOID CONSULT-II Reference Value ............................. 183 . J
VALVE .................................................................... 162
. Diagnostic Procedure .......................................... 183 .
Description .......................................................... 162
. BRAKE SIGNAL CIRCUIT ..................................... 184 .
CONSULT-II Reference Value ............................. 162 . CONSULT-II Reference Value ............................. 184 . K
On Board Diagnosis Logic .................................. 162 . Diagnostic Procedure .......................................... 184 .
Possible Cause ................................................... 162 . A/T INDICATOR CIRCUIT ...................................... 185 .
DTC Confirmation Procedure .............................. 162 . Description ........................................................... 185
. L
Diagnostic Procedure .......................................... 163 . CONSULT-II Reference Value ............................. 185 .
DTC P1774 LOW COAST BRAKE SOLENOID Diagnostic Procedure .......................................... 185 .
VALVE FUNCTION ................................................ 164 . TROUBLE DIAGNOSIS FOR SYMPTOMS ........... 186 .
Description .......................................................... 164
. Wiring Diagram -- AT -- NONDTC ..................... 186 . M
CONSULT-II Reference Value ............................. 164 . A/T CHECK Indicator Lamp Does Not Come On . 189
On Board Diagnosis Logic .................................. 164 . Engine Cannot Be Started in "P" or "N" Position . 190
Possible Cause ................................................... 164 . In "P" Position, Vehicle Moves When Pushed ..... 191 .
DTC Confirmation Procedure .............................. 164 . In "N" Position, Vehicle Moves ............................. 192 .
Diagnostic Procedure .......................................... 165 . Large Shock ("N" to "D" Position) ........................ 193 .
DTC P1815 MANUAL MODE SWITCH ................. 166 . Vehicle Does Not Creep Backward in "R" Position 196 .
Description .......................................................... 166
. Vehicle Does Not Creep Forward in "D" Position . 199
CONSULT-II Reference Value in Data Monitor Mode Vehicle Cannot Be Started From D1 .................... 201 .
. 166 A/T Does Not Shift: D1 D2 ............................... 204 .
On Board Diagnosis Logic .................................. 166 . A/T Does Not Shift: D2 D3 ............................... 206 .
Possible Cause ................................................... 166 . A/T Does Not Shift: D3 D4 ............................... 208 .
DTC Confirmation Procedure .............................. 166 . A/T Does Not Shift: D4 D5 ............................... 211 .
Wiring Diagram -- AT -- MMSW ........................ 167 . A/T Does Not Lock-up ......................................... 213 .
Diagnostic Procedure .......................................... 169 . A/T Does Not Hold Lock-up Condition ................. 215 .
Component Inspection ........................................ 170 . Lock-up Is Not Released ..................................... 217 .
DTC P1841 ATF PRESSURE SWITCH 1 .............. 171 . Engine Speed Does Not Return to Idle ............... 217 .
Description .......................................................... 171
. Cannot Be Changed to Manual Mode ................. 219 .
Revision: 2006 December AT-3 2006 FX35/FX45
A/T Does Not Shift: 5th Gear 4th Gear ........... 219 . OVERHAUL ............................................................ 274
.
A/T Does Not Shift: 4th Gear 3rd Gear ........... 221 . Components ......................................................... 274
.
A/T Does Not Shift: 3rd Gear 2nd Gear .......... 223 . Oil Channel .......................................................... 288
.
A/T Does Not Shift: 2nd Gear 1st Gear ........... 225 . Locations of Adjusting Shims, Needle Bearings,
Vehicle Does Not Decelerate by Engine Brake ... 227 . Thrust Washers and Snap Rings ......................... 291 .
SHIFT CONTROL SYSTEM ................................... 229 . DISASSEMBLY ...................................................... 294 .
Control Device Removal and Installation ............. 229 . Disassembly ......................................................... 294
.
Control Rod Removal and Installation ................. 230 . REPAIR FOR COMPONENT PARTS ..................... 312 .
Adjustment of A/T Position .................................. 231 . Oil Pump .............................................................. 312
.
Checking of A/T Position ..................................... 231 . Front Sun Gear, 3rd One-way Clutch ................... 315 .
A/T SHIFT LOCK SYSTEM .................................... 232 . Front Carrier, Input Clutch, Rear Internal Gear .... 317 .
Description ........................................................... 232
. Mid Sun Gear, Rear Sun Gear, High and Low
Shift Lock System Electrical Parts Location ........ 232 . Reverse Clutch Hub ............................................. 323 .
Wiring Diagram -- AT -- SHIFT .......................... 233 . High and Low Reverse Clutch ............................. 329 .
Diagnostic Procedure .......................................... 234 . Direct Clutch ........................................................ 332
.
KEY INTERLOCK CABLE ..................................... 236 . ASSEMBLY ............................................................ 335
.
Components ........................................................ 236 . Assembly (1) ........................................................ 335
.
Removal and Installation ..................................... 237 . Adjustment ........................................................... 349
.
ON-VEHICLE SERVICE ......................................... 239 . Assembly (2) ........................................................ 352
.
Control Valve with TCM and A/T Fluid Temperature SERVICE DATA AND SPECIFICATIONS (SDS) ... 359 .
Sensor 2 .............................................................. 239
. General Specifications ......................................... 359 .
Parking Components (2WD Models Only) ........... 251 . Vehicle Speed at Which Gear Shifting Occurs ..... 359 .
Rear Oil Seal ....................................................... 258. Vehicle Speed at Which Lock-up Occurs/Releases.360
Revolution Sensor Components (2WD Models Stall Speed ........................................................... 360
.
Only) .................................................................... 259
. Line Pressure ....................................................... 360
.
AIR BREATHER HOSE .......................................... 264 . A/T Fluid Temperature Sensor ............................. 360 .
Removal and Installation ..................................... 264 . Turbine Revolution Sensor ................................... 361 .
TRANSMISSION ASSEMBLY ............................... 266 . Vehicle Speed Sensor A/T (Revolution Sensor) .. 361 .
Removal and Installation (2WD Models) ............. 266 . Reverse Brake ..................................................... 361
.
Removal and Installation (AWD Models) ............. 269 . Total End Play ...................................................... 361
.
Revision: 2006 December AT-4 2006 FX35/FX45
INDEX FOR DTC
INDEX FOR DTC PFP:00024
A
Alphabetical Index NCS001AL
NOTE:
If DTC U1000 is displayed with other DTCs, first perform the trouble diagnosis for "DTC U1000 CAN B
COMMUNICATION". Refer to AT-104, "DTC U1000 CAN COMMUNICATION LINE" .
DTC
Items OBD-II Except OBD-II AT
Reference page
(CONSULT-II screen terms)
CONSULT-II GST(*1) CONSULT-II only "A/T"
A/T 1ST E/BRAKING -- P1731 AT-144
D
ATF PRES SW 1/CIRC -- P1841 AT-171
ATF PRES SW 3/CIRC -- P1843 AT-173
ATF PRES SW 5/CIRC -- P1845 AT-175 E
ATF PRES SW 6/CIRC -- P1846 AT-177
A/T INTERLOCK P1730 P1730 AT-141
F
A/T TCC S/V FNCTN P0744(*2) P0744 AT-127
ATF TEMP SEN/CIRC P0710 P1710 AT-134
CAN COMM CIRCUIT U1000 U1000 AT-104 G
D/C SOLENOID/CIRC P1762 P1762 AT-154
D/C SOLENOID FNCTN P1764(*2) P1764 AT-156
H
ENGINE SPEED SIG -- P0725 AT-123
FR/B SOLENOID/CIRC P1757 P1757 AT-150
FR/B SOLENOID FNCT P1759 (*2) P1759 AT-152 I
HLR/C SOL/CIRC P1767 P1767 AT-158
HLR/C SOL FNCTN (*2) P1769 AT-160
P1769 J
I/C SOLENOID/CIRC P1752 P1752 AT-146
I/C SOLENOID FNCTN P1754(*2) P1754 AT-148
K
L/PRESS SOL/CIRC P0745 P0745 AT-129
LC/B SOLENOID/CIRC P1772 P1772 AT-162
LC/B SOLENOID FNCT P1774(*2) P1774 AT-164 L
MANU MODE SW/CIRC -- P1815 AT-166
PNP SW/CIRC P0705 P0705 AT-112
M
STARTER RELAY/CIRC -- P0615 AT-107
TCC SOLENOID/CIRC P0740 P0740 AT-125
TCM P0700 P0700 AT-111
TP SEN/CIRC A/T -- P1705 AT-131
TURBINE REV S/CIRC P0717 P0717 AT-116
VEH SPD SE/CIR-MTR -- P1721 AT-139
VEH SPD SEN/CIR AT P0720 P0720 AT-118
*1: These numbers are prescribed by SAE J2012.
*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.
Revision: 2006 December AT-5 2006 FX35/FX45
INDEX FOR DTC
DTC No. Index NCS001AM
NOTE:
If DTC U1000 is displayed with other DTCs, first perform the trouble diagnosis for "DTC U1000 CAN
COMMUNICATION". Refer to AT-104, "DTC U1000 CAN COMMUNICATION LINE" .
DTC
OBD-II Except OBD-II Items
Reference page
CONSULT-II (CONSULT-II screen terms)
CONSULT-II
GST(*1) only "A/T"
-- P0615 STARTER RELAY/CIRC AT-107
P0700 P0700 TCM AT-111
P0705 P0705 PNP SW/CIRC AT-112
P0710 P1710 ATF TEMP SEN/CIRC AT-134
P0717 P0717 TURBINE REV S/CIRC AT-116
P0720 P0720 VEH SPD SEN/CIR AT AT-118
-- P0725 ENGINE SPEED SIG AT-123
P0740 P0740 TCC SOLENOID/CIRC AT-125
P0744(*2) P0744 A/T TCC S/V FNCTN AT-127
P0745 P0745 L/PRESS SOL/CIRC AT-129
-- P1705 TP SEN/CIRC A/T AT-131
-- P1721 VEH SPD SE/CIR-MTR AT-139
P1730 P1730 A/T INTERLOCK AT-141
-- P1731 A/T 1ST E/BRAKING AT-144
P1752 P1752 I/C SOLENOID/CIRC AT-146
P1754(*2) P1754 I/C SOLENOID FNCTN AT-148
P1757 P1757 FR/B SOLENOID/CIRC AT-150
P1759(*2) P1759 FR/B SOLENOID FNCT AT-152
P1762 P1762 D/C SOLENOID/CIRC AT-154
P1764(*2) P1764 D/C SOLENOID FNCTN AT-156
P1767 P1767 HLR/C SOL/CIRC AT-158
P1769(*2) P1769 HLR/C SOL FNCTN AT-160
P1772 P1772 LC/B SOLENOID/CIRC AT-162
(*2) P1774 LC/B SOLENOID FNCT AT-164
P1774
-- P1815 MANU MODE SW/CIRC AT-166
-- P1841 ATF PRES SW 1/CIRC AT-171
-- P1843 ATF PRES SW 3/CIRC AT-173
-- P1845 ATF PRES SW 5/CIRC AT-175
-- P1846 ATF PRES SW 6/CIRC AT-177
U1000 U1000 CAN COMM CIRCUIT AT-104
*1: These numbers are prescribed by SAE J2012.
*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.
Revision: 2006 December AT-6 2006 FX35/FX45
PRECAUTIONS
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" NCS001AN
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 NCS001AO
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 battery cable from the negative termi-
nal before any repair or inspection work. The open/short circuit of related switches, sensors, sole- I
noid valves, 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 EVAP system or fuel injection system,
etc. L
q Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
M
Revision: 2006 December AT-7 2006 FX35/FX45
PRECAUTIONS
Precautions NCS001AP
q Before connecting or disconnecting the A/T assembly har-
ness connector, turn ignition switch OFF and disconnect
the battery cable from the negative terminal. Because bat-
tery voltage is applied to TCM even if ignition switch is
turned OFF.
SEF289H
q After performing each TROUBLE DIAGNOSIS, perform
"DTC (Diagnostic Trouble Code) Confirmation Procedure".
If the repair is completed the DTC should not be displayed
in the "DTC Confirmation Procedure".
SEF217U
q Always use the specified brand of ATF. Refer to MA-12, "Fluids and Lubricants" .
q Use lint-free paper not cloth rags during work.
q After replacing the ATF, dispose of the waste oil using the methods prescribed by law, ordinance, etc.
q Before proceeding with disassembly, thoroughly clean the outside of the transmission. It is important to
prevent the internal parts from becoming contaminated by dirt or other foreign matter.
q Disassembly should be done in a clean work area.
q Use lint-free paper or towels for wiping parts clean. Common shop rags can leave fibers that could inter-
fere with the operation of the transmission.
q Place disassembled parts in order for easier and proper assembly.
q All parts should be carefully cleansed with a general purpose, non-flammable solvent before inspection or
reassembly.
q Gaskets, seals and O-rings should be replaced any time the transmission 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 transmission with new ATF.
q When the A/T drain plug is removed, only some of the ATF is drained. Old ATF will remain in torque con-
verter 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-12, "Changing A/T Fluid" , AT-13, "Checking A/T Fluid" .
Revision: 2006 December AT-8 2006 FX35/FX45
PRECAUTIONS
Service Notice or Precautions NCS001AQ
ATF COOLER SERVICE A
If ATF contains frictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced,
inspect and clean the A/T fluid cooler mounted in the radiator or replace the radiator. Flush cooler lines using
cleaning solvent and compressed air after repair. For A/T fluid cooler cleaning procedure, refer to AT-15, "A/T B
Fluid Cooler Cleaning" . For radiator replacement, refer to CO-14, "RADIATOR" (for VQ35DE), CO-41, "RADI-
ATOR" (for VK45DE).
OBD-II SELF-DIAGNOSIS AT
q A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through
the blinking pattern of the A/T CHECK indicator or the malfunction indicator lamp (MIL). Refer to the table
on AT-92, "SELF-DIAGNOSTIC RESULT MODE" for the indicator used to display each self-diagnostic D
result.
q The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM mem-
ories. E
Always perform the procedure on AT-41, "HOW TO ERASE DTC" to complete the repair and avoid
unnecessary blinking of the MIL.
For details of OBD-II, refer to EC-54, "ON BOARD DIAGNOSTIC (OBD) SYSTEM" (for VQ35DE) or EC-714,
F
"ON BOARD DIAGNOSTIC (OBD) SYSTEM" (for VK45DE).
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-72, "HAR-
NESS CONNECTOR" . G
H
I
J
K
L
M
Revision: 2006 December AT-9 2006 FX35/FX45
PREPARATION
PREPARATION PFP:00002
Special Service Tools NCS001AR
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
ST2505S001 Measuring line pressure
(J-34301-C)
Oil pressure gauge set
1. ST25051001
( -- )
Oil pressure gauge
2. ST25052000
( -- )
Hose
3. ST25053000
( -- )
Joint pipe
4. ST25054000 SCIA3695J
( -- )
Adapter
5. ST25055000
( -- )
Adapter
KV31103600 Measuring line pressure
(J-45674)
Joint pipe adapter
(With ST25054000)
ZZA1227D
ST33400001 q Installing rear oil seal (2WD models)
(J-26082) q Installing oil pump housing oil seal
Drift
a: 60 mm (2.36 in) dia.
b: 47 mm (1.85 in) dia.
NT086
KV31102400 Installing reverse brake return spring retainer
(J-34285 and J-34285-87)
Clutch spring compressor
a: 320 mm (12.60 in)
b: 174 mm (6.85 in)
NT423
ST25850000 Removing oil pump assembly
(J-25721-A)
Sliding hammer
a: 179 mm (7.05 in)
b: 70 mm (2.76 in)
c: 40 mm (1.57 in) dia.
d: M12X1.75P
NT422
Revision: 2006 December AT-10 2006 FX35/FX45
PREPARATION
Commercial Service Tools NCS001AS
A
Tool name Description
Power tool Loosening bolts and nuts
B
AT
PBIC0190E
Drift Installing manual shaft oil seals D
a: 22 mm (0.87 in) dia.
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