Infiniti M45 (Y34). Manual — part 29
AT-1
AUTOMATIC TRANSMISSION
C TRANSMISSION/TRANSAXLE
CONTENTS
D
E
F
G
H
I
J
K
L
M
SECTION
AT
A
B
AT
AUTOMATIC TRANSMISSION
INDEX FOR DTC . . . . . . . . . . . . . . 5
Alphabetical Index . . . . . . . . . . . . . 5
DTC No. Index . . . . . . . . . . . . . . . 6
PRECAUTIONS . . . . . . . . . . . . . . .. 7
PREPARATION . . . . . . . . . . . . . . . 12
Special Service Tools . . . . . . . . . . . . 12
Commercial Service Tools . . . . . . . . . .. 13
A/T FLUID . . . . . . . . . . . . . . . . . 14
A/T CONTROL SYSTEM . . . . . . . . . . .. 19
ON BOARD DIAGNOSTIC (OBD) SYSTEM . . . 39
TROUBLE DIAGNOSIS . . . . . . . . . . . 43
DTC Inspection Priority Chart . . . . . . . . 43
DTC U1000 CAN COMMUNICATION LINE . . . 103
DTC P0615 START SIGNAL CIRCUIT . . . . ... 106
AT-2
DTC P0720 VEHICLE SPEED SENSOR A/T (REV-
OLUTION SENSOR) . . . . . . . . . . . ... 116
DTC P0725 ENGINE SPEED SIGNAL . . . . ... 121
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE . . . . . . . . . . . . . 123
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) . 128
DTC P0745 LINE PRESSURE SOLENOID VALVE .134
DTC P1701 TRANSMISSION CONTROL MODULE
(POWER SUPPLY) . . . . . . . . . . . . .. 140
DTC P1702 TRANSMISSION CONTROL MODULE
(RAM) . . . . . . . . . . . . . . . . . .. 146
DTC P1703 TRANSMISSION CONTROL MODULE
(ROM) . . . . . . . . . . . . . . . . . ..148
DTC P1704 TRANSMISSION CONTROL MODULE
(EEPROM) . . . . . . . . . . . . . . . ...150
DTC P1705 THROTTLE POSITION SENSOR . . 152
DTC P1710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT . . . . . . . . . . . . . . . . ..154
DTC P1716 TURBINE REVOLUTION SENSOR . 160
DTC P1721 VEHICLE SPEED SENSOR MTR . ...165
AT-3
D
E
F
G
H
I
J
K
L
M
A
B
AT
DTC P1731 A/T 1ST ENGINE BRAKING . . . ... 174
DTC P1752 INPUT CLUTCH SOLENOID VALVE .. 179
DTC P1754 INPUT CLUTCH SOLENOID VALVE
FUNCTION . . . . . . . . . . . . . . . .. 185
DTC P1757 FRONT BRAKE SOLENOID VALVE .. 189
DTC P1759 FRONT BRAKE SOLENOID VALVE
FUNCTION . . . . . . . . . . . . . . . .. 194
DTC P1762 DIRECT CLUTCH SOLENOID VALVE
DTC P1764 DIRECT CLUTCH SOLENOID VALVE
FUNCTION . . . . . . . . . . . . . . . .. 205
DTC P1767 HIGH AND LOW REVERSE CLUTCH
SOLENOID VALVE . . . . . . . . . . . . . 209
DTC P1769 HIGH AND LOW REVERSE CLUTCH
SOLENOID VALVE FUNCTION . . . . . . . .. 215
DTC P1772 LOW COAST BRAKE SOLENOID
VALVE . . . . . . . . . . . . . . . . . . 220
DTC P1774 LOW COAST BRAKE SOLENOID
VALVE FUNCTION . . . . . . . . . . . . .. 226
DTC P1815 MANUAL MODE SWITCH . . . . .. 230
Description . . . . . . . . . . . . . . . 230
CONSULT-II Reference Value in Data Monitor Mode
AT-4
Wiring Diagram — AT — FPSW1 . . . . . . . 235
Diagnostic Procedure . . . . . . . . . . ... 236
DTC P1843 ATF PRESSURE SWITCH 3 . . . ... 238
DTC P1845 ATF PRESSURE SWITCH 5 . . . ... 242
DTC P1846 ATF PRESSURE SWITCH 6 . . . ... 246
CONSULT-II Reference Value . . . . . . . .. 250
Diagnostic Procedure . . . . . . . . . . ... 251
TROUBLE DIAGNOSIS FOR SYMPTOMS . . . 254
Vehicle Does Not Decelerate by Engine Brake . .302
SHIFT CONTROL SYSTEM . . . . . . . . . 304
A/T SHIFT LOCK SYSTEM . . . . . . . . . .306
ON-VEHICLE SERVICE . . . . . . . . . . ..312
AIR BREATHER HOSE . . . . . . . . . . ...330
Removal and Installation . . . . . . . . . ...330
TRANSMISSION ASSEMBLY . . . . . . . . .331
Removal and Installation . . . . . . . . . ...331
OVERHAUL . . . . . . . . . . . . . . . .334
DISASSEMBLY . . . . . . . . . . . . . ...342
Disassembly . . . . . . . . . . . . . . ..342
REPAIR FOR COMPONENT PARTS . . . . . ..357
ASSEMBLY . . . . . . . . . . . . . . . .376
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