Infiniti QX56 (Z62). Manual — part 1273
TM-1
TRANSMISSION & DRIVELINE
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SECTION
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CONTENTS
TRANSAXLE & TRANSMISSION
7AT: RE7R01B
PRECAUTION . . . . . . . . . . . ...
PRECAUTIONS . . . . . . . . . . . . ...
General Precautions . . . . . . . . . . . .....
Service Notice or Precaution . . . . . . . . .....
PREPARATION . . . . . . . . . . .
PREPARATION . . . . . . . . . . . . ...
Special Service Tool . . . . . . . . . . . .....
Commercial Service Tool . . . . . . . . . . ..
SYSTEM DESCRIPTION . . . . . . . .
COMPONENT PARTS . . . . . . . . . ...
A/T CONTROL SYSTEM . . . . . . . . . . ...
A/T CONTROL SYSTEM : Component Parts Lo-
cation . . . . . . . . . . . . . . . . . ...
A/T CONTROL SYSTEM : Component Descrip-
tion . . . . . . . . . . . . . . . . . . ..
A/T CONTROL SYSTEM : TCM . . . . . . . .
A/T CONTROL SYSTEM : Transmission Range
Switch . . . . . . . . . . . . . . . . . ..
A/T CONTROL SYSTEM : Input Speed Sensor . .
A/T CONTROL SYSTEM : Output Speed Sensor
A/T CONTROL SYSTEM : A/T Fluid Temperature
Sensor . . . . . . . . . . . . . . . . . .
A/T CONTROL SYSTEM : Input Clutch Solenoid
Valve . . . . . . . . . . . . . . . . . ...
A/T CONTROL SYSTEM : Front Brake Solenoid
Valve . . . . . . . . . . . . . . . . . ...
A/T CONTROL SYSTEM : Direct Clutch Solenoid
Valve . . . . . . . . . . . . . . . . . ...
A/T CONTROL SYSTEM : High and Low Reverse
Clutch Solenoid Valve . . . . . . . . . . . .
A/T CONTROL SYSTEM : Low Brake Solenoid
Valve . . . . . . . . . . . . . . . . . .
A/T CONTROL SYSTEM : Anti-interlock Solenoid
Valve . . . . . . . . . . . . . . . . . .
A/T CONTROL SYSTEM : 2346 Brake Solenoid
Valve . . . . . . . . . . . . . . . . . .
A/T CONTROL SYSTEM : Torque Converter
Clutch Solenoid Valve . . . . . . . . . . . .
A/T CONTROL SYSTEM : Line Pressure Solenoid
Valve . . . . . . . . . . . . . . . . . .
A/T CONTROL SYSTEM : Accelerator Pedal Po-
sition Sensor . . . . . . . . . . . . . . .
A/T CONTROL SYSTEM : Manual Mode Switch .
A/T CONTROL SYSTEM : Tow Mode Switch . . .
A/T CONTROL SYSTEM : A/T CHECK Indicator
Lamp . . . . . . . . . . . . . . . . . .
A/T CONTROL SYSTEM : Tow Mode Indicator
Lamp . . . . . . . . . . . . . . . . . .
A/T CONTROL SYSTEM : Selector Lever Position
Indicator . . . . . . . . . . . . . . . . ...
A/T SHIFT LOCK SYSTEM . . . . . . . . . ...
A/T SHIFT LOCK SYSTEM : Component Parts
Location . . . . . . . . . . . . . . . . ...
A/T SHIFT LOCK SYSTEM : Component Descrip-
tion . . . . . . . . . . . . . . . . . . ...
STRUCTURE AND OPERATION . . . . . .
TRANSMISSION . . . . . . . . . . . . . .
TRANSMISSION : Cross-Sectional View . . . .
TRANSMISSION : System Diagram . . . . . .
TRANSMISSION : System Description . . . . ...
TRANSMISSION : Component Description . . . .
FLUID COOLER & FLUID WARMER SYSTEM . .
FLUID COOLER & FLUID WARMER SYSTEM :
System Description . . . . . . . . . . . . ..
SYSTEM . . . . . . . . . . . . . . .
TM-2
A/T CONTROL SYSTEM : System Diagram . . ..
A/T CONTROL SYSTEM : System Description . ..
A/T CONTROL SYSTEM : Fail-Safe . . . . . ..
A/T CONTROL SYSTEM : Protection Control . ....
LINE PRESSURE CONTROL . . . . . . . . ...
LINE PRESSURE CONTROL : System Diagram ...
LINE PRESSURE CONTROL : System Descrip-
tion . . . . . . . . . . . . . . . . . . ..
SHIFT CHANGE CONTROL . . . . . . . . . .
SHIFT CHANGE CONTROL : System Diagram . .
SHIFT CHANGE CONTROL : System Description
...
SHIFT PATTERN CONTROL . . . . . . . . ....
SHIFT PATTERN CONTROL : System Diagram ...
SHIFT PATTERN CONTROL : System Descrip-
tion . . . . . . . . . . . . . . . . . . ..
LOCK-UP CONTROL . . . . . . . . . . . ....
LOCK-UP CONTROL : System Diagram . . . ....
LOCK-UP CONTROL : System Description . . ...
A/T SHIFT LOCK SYSTEM . . . . . . . . . ...
A/T SHIFT LOCK SYSTEM : System Description ...
ON BOARD DIAGNOSTIC (OBD) SYSTEM . .
Diagnosis Description . . . . . . . . . . . .
DIAGNOSIS SYSTEM (TCM) . . . . . . .
CONSULT-III Function (TRANSMISSION) . . . .
ECU DIAGNOSIS INFORMATION . . . ..
TCM . . . . . . . . . . . . . . . . .
Reference Value . . . . . . . . . . . . . .
Fail-Safe . . . . . . . . . . . . . . . . .
Protection Control . . . . . . . . . . . . ...
DTC Inspection Priority Chart . . . . . . . . .
DTC Index . . . . . . . . . . . . . . . ..
WIRING DIAGRAM . . . . . . . . . .
A/T CONTROL SYSTEM . . . . . . . . ...
Wiring Diagram . . . . . . . . . . . . . ...
A/T SHIFT LOCK SYSTEM . . . . . . . ...
Wiring Diagram . . . . . . . . . . . . . ...
BASIC INSPECTION . . . . . . . . ...
DIAGNOSIS AND REPAIR WORK FLOW . .
Diagnosis Flow . . . . . . . . . . . . . ...
Question sheet . . . . . . . . . . . . . ...
ADDITIONAL SERVICE WHEN REPLACING
TRANSMISSION ASSEMBLY . . . . . . ...
Description . . . . . . . . . . . . . . . ..
Special Repair Requirement . . . . . . . . ...
ADDITIONAL SERVICE WHEN REPLACING
CONTROL VALVE & TCM . . . . . . . .
Description . . . . . . . . . . . . . . . ..
Special Repair Requirement . . . . . . . . ...
CALIBRATION OF DECEL G SENSOR . . ...
Description . . . . . . . . . . . . . . . ..
Special Repair Requirement . . . . . . . . ...
A/T FLUID . . . . . . . . . . . . . . ..
Changing . . . . . . . . . . . . . . . . .
Adjustment . . . . . . . . . . . . . . . ..
A/T FLUID COOLER . . . . . . . . . . .
Cleaning . . . . . . . . . . . . . . . . ..
Inspection . . . . . . . . . . . . . . . .
STALL TEST . . . . . . . . . . . . .
Inspection and Judgment . . . . . . . . . ..
A/T POSITION . . . . . . . . . . . . ..
Inspection . . . . . . . . . . . . . . . ..
Adjustment . . . . . . . . . . . . . . .
DTC/CIRCUIT DIAGNOSIS . . . . . ...
U0300 CAN COMMUNICATION DATA . . ...
Description . . . . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
U1000 CAN COMM CIRCUIT . . . . . . ...
Description . . . . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0615 STARTER RELAY . . . . . . . . .
Description . . . . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0705 TRANSMISSION RANGE SWITCH A ..
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0710 TRANSMISSION FLUID TEMPERA-
TURE SENSOR A . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0717 INPUT SPEED SENSOR A . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0720 OUTPUT SPEED SENSOR . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0725 ENGINE SPEED . . . . . . . . .
Description . . . . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
TM-3
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Description . . . . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0730 INCORRECT GEAR RATIO . . . . ..
Description . . . . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0731 1GR INCORRECT RATIO . . . . . .
Description . . . . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0732 2GR INCORRECT RATIO . . . . . .
Description . . . . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0733 3GR INCORRECT RATIO . . . . . .
Description . . . . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0734 4GR INCORRECT RATIO . . . . . .
Description . . . . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0735 5GR INCORRECT RATIO . . . . . .
Description . . . . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0740 TORQUE CONVERTER . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0744 TORQUE CONVERTER . . . . . .
Description . . . . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0745 PRESSURE CONTROL SOLENOID A
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0750 SHIFT SOLENOID A . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0775 PRESSURE CONTROL SOLENOID B
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0780 SHIFT . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0795 PRESSURE CONTROL SOLENOID C
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1705 TP SENSOR . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
P1721 VEHICLE SPEED SIGNAL . . . . ..
Description . . . . . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
P1730 INTERLOCK . . . . . . . . . .
Description . . . . . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . ..
Judgment of Interlock . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1734 7GR INCORRECT RATIO . . . . ...
Description . . . . . . . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
P1815 M-MODE SWITCH . . . . . . . ...
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection (Manual Mode Switch) . ..
P2713 PRESSURE CONTROL SOLENOID D .
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
P2722 PRESSURE CONTROL SOLENOID E .
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
P2731 PRESSURE CONTROL SOLENOID F .
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
P2807 PRESSURE CONTROL SOLENOID G .
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
MAIN POWER SUPPLY AND GROUND CIR-
CUIT . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
TOW MODE SYSTEM . . . . . . . . . .
Component Function Check . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
SHIFT POSITION INDICATOR CIRCUIT . .
Description . . . . . . . . . . . . . . . .
Component Function Check . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
SHIFT LOCK SYSTEM . . . . . . . . ...
Component Function Check . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection (Stop Lamp Switch) . . ..
TM-4
Component Inspection (Shift Lock Solenoid) . .
SELECTOR LEVER POSITION INDICATOR ..
Component Function Check . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection (Selector Lever Position
Indicator) . . . . . . . . . . . . . . . .
SYMPTOM DIAGNOSIS . . . . . . .
SYSTEM SYMPTOM . . . . . . . . . ...
Symptom Table . . . . . . . . . . . . . .
PERIODIC MAINTENANCE . . . . . ...
A/T FLUID . . . . . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . ..
REMOVAL AND INSTALLATION . . . ..
A/T SHIFT SELECTOR . . . . . . . . .
Exploded View . . . . . . . . . . . . . ...
Removal and Installation . . . . . . . . . ...
Inspection and Adjustment . . . . . . . . .
CONTROL CABLE . . . . . . . . . . ..
Exploded View . . . . . . . . . . . . . ...
Removal and Installation . . . . . . . . . ...
Inspection and Adjustment . . . . . . . . .
SELECTOR LEVER POSITION INDICATOR ..
Removal and Installation . . . . . . . . . ...
TOW MODE SWITCH . . . . . . . . . ..
Removal and Installation . . . . . . . . . ...
CONTROL VALVE & TCM . . . . . . . ..
Exploded View . . . . . . . . . . . . . ...
Removal and Installation . . . . . . . . . ...
Inspection and Adjustment . . . . . . . . .
PARKING COMPONENTS . . . . . . . ..
2WD . . . . . . . . . . . . . . . . . . ..
2WD : Exploded View . . . . . . . . . . .
2WD : Removal and Installation . . . . . . .
2WD : Inspection . . . . . . . . . . . . ...
REAR OIL SEAL . . . . . . . . . . . ..
2WD . . . . . . . . . . . . . . . . . . ..
2WD : Exploded View . . . . . . . . . . .
2WD : Removal and Installation . . . . . . .
2WD : Inspection . . . . . . . . . . . . ...
4WD . . . . . . . . . . . . . . . . . . ..
4WD : Exploded View . . . . . . . . . . .
4WD : Removal and Installation . . . . . . .
4WD : Inspection and Adjustment . . . . . . .
OUTPUT SPEED SENSOR . . . . . . . .
2WD . . . . . . . . . . . . . . . . . . ..
2WD : Exploded View . . . . . . . . . . ...
2WD : Removal and Installation . . . . . . .
2WD : Inspection and Adjustment . . . . . . .
AIR BREATHER HOSE . . . . . . . . .
2WD . . . . . . . . . . . . . . . . . . .
2WD : Exploded View . . . . . . . . . . ...
2WD : Removal and Installation . . . . . . .
4WD . . . . . . . . . . . . . . . . . . .
4WD : Exploded View . . . . . . . . . . ...
4WD : Removal and Installation . . . . . . .
FLUID COOLER SYSTEM . . . . . . . ...
Exploded View . . . . . . . . . . . . . ..
Removal and Installation . . . . . . . . . ...
Inspection and Adjustment . . . . . . . . .
UNIT REMOVAL AND INSTALLATION ...
TRANSMISSION ASSEMBLY . . . . . . ..
2WD . . . . . . . . . . . . . . . . . . .
2WD : Exploded View . . . . . . . . . . ...
2WD : Removal and Installation . . . . . . .
2WD : Inspection and Adjustment . . . . . . .
4WD . . . . . . . . . . . . . . . . . . .
4WD : Exploded View . . . . . . . . . . ...
4WD : Removal and Installation . . . . . . .
4WD : Inspection and Adjustment . . . . . . .
UNIT DISASSEMBLY AND ASSEMBLY ..
TRANSMISSION ASSEMBLY . . . . . . ..
Exploded View . . . . . . . . . . . . . ..
Oil Channel . . . . . . . . . . . . . . ...
Location of Needle Bearings and Bearing Races .
Location of Snap Rings . . . . . . . . . . .
Disassembly . . . . . . . . . . . . . . ..
Assembly . . . . . . . . . . . . . . . ..
Inspection . . . . . . . . . . . . . . . ..
OIL PUMP, 2346 BRAKE, FRONT BRAKE
PISTON . . . . . . . . . . . . . . . .
Exploded View . . . . . . . . . . . . . ..
Disassembly . . . . . . . . . . . . . . ..
Assembly . . . . . . . . . . . . . . . ..
Inspection and Adjustment . . . . . . . . .
UNDER DRIVE CARRIER, FRONT BRAKE
HUB . . . . . . . . . . . . . . . . ..
Exploded View . . . . . . . . . . . . . ..
Disassembly . . . . . . . . . . . . . . ..
Assembly . . . . . . . . . . . . . . . ..
Inspection . . . . . . . . . . . . . . . ..
FRONT CARRIER, INPUT CLUTCH, REAR
INTERNAL GEAR . . . . . . . . . . . .
Exploded View . . . . . . . . . . . . . ..
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