Nissan Frontier. Instruction — part 1235
A/T CONTROL SYSTEM
TM-151
< SYSTEM DESCRIPTION >
[5AT: RE5R05A]
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FUNCTION OF PRESSURE SWITCH
Front brake control valve
When the front brake is coupled, adjusts the line pressure to the optimum pressure (front
brake pressure) and supplies it to the front brake. (In 1GR, 2GR, 3GR, and 5GR, adjusts
the clutch pressure.)
Accumulator control valve
Adjusts the pressure (accumulator control pressure) acting on the accumulator piston
and low coast reducing valve to the pressure appropriate to the driving state.
Pilot valve A
Adjusts the line pressure and produces the constant pressure (pilot pressure) required
for line pressure control, shift change control, and lock-up control.
Pilot valve B
Adjusts the line pressure and produces the constant pressure (pilot pressure) required
for shift change control.
Low coast brake switching valve
During engine braking, supplies the line pressure to the low coast brake reducing valve.
Low coast brake reducing valve
When the low coast brake is coupled, adjusts the line pressure to the optimum pressure
(low coast brake pressure) and supplies it to the low coast brake.
N-R accumulator
Produces the stabilizing pressure for when N-R is selected.
Direct clutch piston switching valve
Operates in 4GR and switches the direct clutch coupling capacity.
High and low reverse clutch control valve
When the high and low reverse clutch is coupled, adjusts the line pressure to the opti-
mum pressure (high and low reverse clutch pressure) and supplies it to the high and low
reverse clutch. (In 1GR, 3GR, 4GR and 5GR, adjusts the clutch pressure.)
Input clutch control valve
When the input clutch is coupled, adjusts the line pressure to the optimum pressure (in-
put clutch pressure) and supplies it to the input clutch. (In 4GR and 5GR, adjusts the
clutch pressure.)
Direct clutch control valve
When the direct clutch is coupled, adjusts the line pressure to the optimum pressure (di-
rect clutch pressure) and supplies it to the direct clutch. (In 2GR, 3GR, and 4GR, adjusts
the clutch pressure.)
TCC control valve
TCC control plug
TCC control sleeve
Switches the lock-up to operating or released. Also, by performing the lock-up operation
transiently, lock-up smoothly.
Torque converter lubrication valve
Operates during lock-up to switch the torque converter, cooling, and lubrication system
oil path.
Cool bypass valve
Allows excess oil to bypass cooler circuit without being fed into it.
Line pressure relief valve
Discharges excess oil from line pressure circuit.
N-D accumulator
Produces the stabilizing pressure for when N-D is selected.
Instruction valve
Sends line pressure to each circuit according to the select position. The circuits to which
the line pressure is not sent drain.
Name
Function
Name
Function
Pressure switch 2 (LC/B)
Detects any malfunction in the low coast brake hydraulic pressure. When it detects any
malfunction, it puts the system into fail-safe mode.
TM-152
< SYSTEM DESCRIPTION >
[5AT: RE5R05A]
A/T CONTROL SYSTEM
A/T Electrical Parts Location
INFOID:0000000009480475
*1: The following components are included in the control valve with TCM.
• TCM (transmission control module)
• Input speed sensor 1
• Input speed sensor 2
• Output speed sensor
1.
O/D OFF indicator lamp
2.
Accelerator pedal position sensor
3.
Accelerator pedal
4.
Control valve with TCM*1
5.
A/T assembly harness connector
6.
1st position switch
7.
Overdrive control switch
AWDIA0965ZZ
A/T CONTROL SYSTEM
TM-153
< SYSTEM DESCRIPTION >
[5AT: RE5R05A]
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• A/T fluid temperature sensor
• Transmission range switch
• Line pressure solenoid valve
• Torque converter clutch solenoid valve
• Direct clutch solenoid valve
• High and low reverse clutch solenoid valve
• Input clutch solenoid valve
• Front brake solenoid valve
• Low coast brake solenoid valve
• ATF pressure switch 2
TM-154
< SYSTEM DESCRIPTION >
[5AT: RE5R05A]
A/T SHIFT LOCK SYSTEM
A/T SHIFT LOCK SYSTEM
System Description
INFOID:0000000009480476
• The selector lever cannot be shifted from “P” (Park) unless the brake pedal is applied and the ignition switch
is in the “ON” position.
• Battery voltage is supplied to the shift lock solenoid by the stop lamp switch.
• Ground is supplied to the shift lock solenoid by the park position switch (shift selector).
• With the the ignition switch “ON”, brake pedal applied and the A/T shift selector in “P” (Park), the shift lock
solenoid is energized, allowing the selector lever to be shifted from Park.
Component Parts Location
INFOID:0000000009480477
1.
A/T shift selector
2.
Shift lock solenoid
3.
Park position switch (shift selector)
4.
Stop lamp switch E39
AWDIA0735GB
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