Infiniti QX56 (Z62). Manual — part 1275
PREPARATION
TM-9
< PREPARATION >
[7AT: RE7R01B]
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Commercial Service Tool
INFOID:0000000006226737
*: Always check with the Parts Department for the latest parts information.
Tool name
Description
Power tool
Loosening bolts and nuts
Drift
a: 22 mm (0.87 in) dia.
Installing manual shaft oil seals
Drift
a: 64 mm (2.52 in) dia.
Installing rear oil seal (4WD)
Pin punch
a: 4 mm (0.16 in) dia.
Remove retaining pin
1.
315268E000*
O-ring
2.
310811EA5A*
Charging pipe
A/T fluid changing and adjustment
PBIC0190E
NT083
SCIA5338E
NT410
JSDIA1332ZZ
TM-10
< SYSTEM DESCRIPTION >
[7AT: RE7R01B]
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
A/T CONTROL SYSTEM
A/T CONTROL SYSTEM : Component Parts Location
INFOID:0000000006226738
1.
Yaw rate/side/decel G sensor
Refer to
.
2.
Tow mode switch
*1
3.
.
4.
.
5.
ABS actuator and electric unit (con-
trol unit)
Refer to
6.
Accelerator pedal position sensor
Refer to
.
7.
.
8.
BCM
Refer to
SYSTEM : Component Parts Loca-
tion"
.
9.
Combination meter
Refer to
.
10. Shift position indicator
(In the information display in the
combination meter)
11.
A/T CHECK indicator lamp
(On the combination meter)
12. Tow mode indicator lamp
13. Selector lever position indicator
14. Manual mode switch
15. A/T assembly connector
16. Output speed sensor
*2
17. Control valve & TCM
*3
A.
Center console
B.
A/T shift selector assembly
C.
A/T assembly
*1
: Tow mode switch is integrated in to SNOW MODE/TOW MODE/VDC OFF switch assembly (2WD models) or 4WD switch
assembly (4WD models).
*2
: Output speed sensor is installed in A/T assembly.
*3
: Control valve & TCM is installed in A/T assembly.
JSDIA1773GB
COMPONENT PARTS
TM-11
< SYSTEM DESCRIPTION >
[7AT: RE7R01B]
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NOTE:
The following components are included in the control valve & TCM (17).
• TCM
• Input speed sensor 1, 2
• A/T fluid temperature sensor
• Transmission range switch
• Direct clutch solenoid valve
• High and low reverse clutch solenoid valve
• Input clutch solenoid valve
• Front brake solenoid valve
• Low brake solenoid valve
• Anti-interlock solenoid valve
• 2346 brake solenoid valve
• Line pressure solenoid valve
• Torque converter clutch solenoid valve
A/T CONTROL SYSTEM : Component Description
INFOID:0000000006226739
Name
Function
TCM
TM-12, "A/T CONTROL SYSTEM : TCM"
Transmission range switch
TM-12, "A/T CONTROL SYSTEM : Transmission Range Switch"
Output speed sensor
TM-12, "A/T CONTROL SYSTEM : Output Speed Sensor"
Input speed sensor 1
TM-12, "A/T CONTROL SYSTEM : Input Speed Sensor"
Input speed sensor 2
A/T fluid temperature sensor
TM-12, "A/T CONTROL SYSTEM : A/T Fluid Temperature Sensor"
Input clutch solenoid valve
TM-12, "A/T CONTROL SYSTEM : Input Clutch Solenoid Valve"
Front brake solenoid valve
TM-12, "A/T CONTROL SYSTEM : Front Brake Solenoid Valve"
Direct clutch solenoid valve
TM-12, "A/T CONTROL SYSTEM : Direct Clutch Solenoid Valve"
High and low reverse clutch solenoid valve
TM-13, "A/T CONTROL SYSTEM : High and Low Reverse Clutch Solenoid Valve"
Low brake solenoid valve
TM-13, "A/T CONTROL SYSTEM : Low Brake Solenoid Valve"
Anti-interlock solenoid valve
TM-13, "A/T CONTROL SYSTEM : Anti-interlock Solenoid Valve"
2346 brake solenoid valve
TM-13, "A/T CONTROL SYSTEM : 2346 Brake Solenoid Valve"
Torque converter clutch solenoid valve
TM-13, "A/T CONTROL SYSTEM : Torque Converter Clutch Solenoid Valve"
Line pressure solenoid valve
TM-13, "A/T CONTROL SYSTEM : Line Pressure Solenoid Valve"
Accelerator pedal position sensor
TM-13, "A/T CONTROL SYSTEM : Accelerator Pedal Position Sensor"
Manual mode switch
TM-13, "A/T CONTROL SYSTEM : Manual Mode Switch"
Tow mode switch
TM-14, "A/T CONTROL SYSTEM : Tow Mode Switch"
A/T CHECK indicator lamp
TM-14, "A/T CONTROL SYSTEM : A/T CHECK Indicator Lamp"
Tow mode indicator lamp*
TM-14, "A/T CONTROL SYSTEM : Tow Mode Indicator Lamp"
Selector lever position indicator
TM-14, "A/T CONTROL SYSTEM : Selector Lever Position Indicator"
Stop lamp switch
Yaw rate/side G sensor
BRC-15, "Yaw Rate/Side/Decel G sensor"
Starter relay
ECM
EC-35, "ENGINE CONTROL SYSTEM : System Description"
BCM
BCS-6, "BODY CONTROL SYSTEM : System Description"
Combination meter
MWI-9, "METER SYSTEM : System Description"
ABS actuator and electric unit (control unit)
TM-12
< SYSTEM DESCRIPTION >
[7AT: RE7R01B]
COMPONENT PARTS
A/T CONTROL SYSTEM : TCM
INFOID:0000000006226740
• The TCM consists of a microcomputer and connectors for signal input and output and for power supply. The
TCM controls the A/T.
• The TCM is integral with the control valve assembly and built into the A/T assembly.
A/T CONTROL SYSTEM : Transmission Range Switch
INFOID:0000000006226741
• The transmission range switch incorporates four contact switches. Each contact switch transmits an ON/
OFF signal to the TCM.
• The TCM judges a select lever position from a combination of ON/OFF signals transmitted from each con-
tact switch.
A/T CONTROL SYSTEM : Input Speed Sensor
INFOID:0000000006226742
The input speed sensor detects input shaft rpm (revolutions per minute). It is located on the input side of the A/
T. Monitors revolution of sensor 1 and sensor 2 for non-standard conditions.
A/T CONTROL SYSTEM : Output Speed Sensor
INFOID:0000000006226743
The output speed sensor detects the revolution of the parking gear and emits a pulse signal. The pulse signal
is transmitted to the TCM which converts it into vehicle speed.
A/T CONTROL SYSTEM : A/T Fluid Temperature Sensor
INFOID:0000000006226744
The A/T fluid temperature sensor detects the A/T fluid temperature and transmits a signal to the TCM.
A/T CONTROL SYSTEM : Input Clutch Solenoid Valve
INFOID:0000000006226745
• The Input clutch solenoid valve is controlled by the TCM in response to signals transmitted from the trans-
mission range switch, output speed sensor and accelerator pedal position sensor. Gears will then be shifted
to the optimum position.
• The Input clutch solenoid valve controls the input clutch control valve in response to a signal transmitted
from the TCM.
A/T CONTROL SYSTEM : Front Brake Solenoid Valve
INFOID:0000000006226746
• The front brake solenoid valve is controlled by the TCM in response to signals transmitted from the transmis-
sion range switch, output speed sensor and accelerator pedal position sensor. Gears will then be shifted to
the optimum position.
• The front brake solenoid valve controls the front brake control valve in response to a signal transmitted from
the TCM.
A/T CONTROL SYSTEM : Direct Clutch Solenoid Valve
INFOID:0000000006226747
• The direct clutch solenoid valve is controlled by the TCM in response to signals transmitted from the trans-
mission range switch, output speed sensor and accelerator pedal position sensor. Gears will then be shifted
to the optimum position.
• The direct clutch solenoid valve controls the direct clutch control valve in response to a signal transmitted
from the TCM.
Select lever position
Transmission range switch
SW1
SW2
SW3
SW4
P
OFF
OFF
OFF
OFF
R
ON
OFF
OFF
ON
N
ON
ON
OFF
OFF
D and M
ON
ON
ON
ON
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