AT-2
Possible Cause .....................................................103
DTC Confirmation Procedure ...............................103
Wiring Diagram — AT — VSSA/T .........................105
Diagnostic Procedure ...........................................106
DTC P0725 ENGINE SPEED SIGNAL ...................108
Description ............................................................108
CONSULT-II Reference Value ..............................108
On Board Diagnosis Logic ....................................108
Possible Cause .....................................................108
DTC Confirmation Procedure ...............................108
Diagnostic Procedure ...........................................109
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE .................................................110
Description ............................................................110
CONSULT-II Reference Value ..............................110
On Board Diagnosis Logic ....................................110
Possible Cause .....................................................110
DTC Confirmation Procedure ...............................110
Diagnostic Procedure ............................................111
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP). 112
Description ............................................................112
CONSULT-II Reference Value ..............................112
On Board Diagnosis Logic ....................................112
Possible Cause .....................................................112
DTC Confirmation Procedure ...............................112
Diagnostic Procedure ...........................................113
DTC P0745 LINE PRESSURE SOLENOID VALVE. 114
Description ............................................................114
CONSULT-II Reference Value ..............................114
On Board Diagnosis Logic ....................................114
Possible Cause .....................................................114
DTC Confirmation Procedure ...............................114
Diagnostic Procedure ...........................................115
DTC P1705 THROTTLE POSITION SENSOR .......116
Description ............................................................116
CONSULT-II Reference Value ..............................116
On Board Diagnosis Logic ....................................116
Possible Cause .....................................................116
DTC Confirmation Procedure ...............................116
Diagnostic Procedure ...........................................116
DTC P1710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT ..................................................................118
Description ............................................................118
CONSULT-II Reference Value ..............................118
On Board Diagnosis Logic ....................................118
Possible Cause .....................................................118
DTC Confirmation Procedure ...............................118
Wiring Diagram — AT — FTS ...............................119
Diagnostic Procedure ...........................................120
Component Inspection ..........................................122
DTC P1716 TURBINE REVOLUTION SENSOR ....123
Description ............................................................123
CONSULT-II Reference Value ..............................123
On Board Diagnosis Logic ....................................123
Possible Cause .....................................................123
DTC Confirmation Procedure ...............................123
Diagnostic Procedure ...........................................124
DTC P1721 VEHICLE SPEED SENSOR MTR .......125
Description ............................................................125CONSULT-II Reference Value ...............................125
On Board Diagnosis Logic ....................................125
Possible Cause .....................................................125
DTC Confirmation Procedure ................................125
Diagnostic Procedure ............................................126
DTC P1730 A/T INTERLOCK .................................127
Description ............................................................127
On Board Diagnosis Logic ....................................127
Possible Cause .....................................................127
DTC Confirmation Procedure ................................127
Judgement of A/T Interlock ...................................128
Diagnostic Procedure ............................................128
DTC P1731 A/T 1ST ENGINE BRAKING ...............130
Description ............................................................130
CONSULT-II Reference Value ...............................130
On Board Diagnosis Logic ....................................130
Possible Cause .....................................................130
DTC Confirmation Procedure ................................130
Diagnostic Procedure ............................................131
DTC P1752 INPUT CLUTCH SOLENOID VALVE ..132
Description ............................................................132
CONSULT-II Reference Value ...............................132
On Board Diagnosis Logic ....................................132
Possible Cause .....................................................132
DTC Confirmation Procedure ................................132
Diagnostic Procedure ............................................133
DTC P1754 INPUT CLUTCH SOLENOID VALVE
FUNCTION ..............................................................134
Description ............................................................134
CONSULT-II Reference Value ...............................134
On Board Diagnosis Logic ....................................134
Possible Cause .....................................................134
DTC Confirmation Procedure ................................134
Diagnostic Procedure ............................................135
DTC P1757 FRONT BRAKE SOLENOID VALVE ...137
Description ............................................................137
CONSULT-II Reference Value ...............................137
On Board Diagnosis Logic ....................................137
Possible Cause .....................................................137
DTC Confirmation Procedure ................................137
Diagnostic Procedure ............................................138
DTC P1759 FRONT BRAKE SOLENOID VALVE
FUNCTION ..............................................................139
Description ............................................................139
CONSULT-II Reference Value ...............................139
On Board Diagnosis Logic ....................................139
Possible Cause .....................................................139
DTC Confirmation Procedure ................................139
Diagnostic Procedure ............................................140
DTC P1762 DIRECT CLUTCH SOLENOID VALVE.142
Description ............................................................142
CONSULT-II Reference Value ...............................142
On Board Diagnosis Logic ....................................142
Possible Cause .....................................................142
DTC Confirmation Procedure ................................142
Diagnostic Procedure ............................................143
DTC P1764 DIRECT CLUTCH SOLENOID VALVE
FUNCTION ..............................................................144
Description ............................................................144
PRECAUTIONS
AT-7
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ECS00IPT
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:
lTo 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.
lImproper 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.
lDo 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.
PrecautionsECS00IPR
lBefore 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.
lAfter performing each TROUBLE DIAGNOSIS, perform
“DTC Confirmation Procedure”.
If the repair is completed the DTC should not be displayed
in the “DTC Confirmation Procedure”.
lAlways use the specified brand of ATF. Refer toMA-14, "REC-
OMMENDED FLUIDS AND LUBRICANTS".
lUse lint-free paper not cloth rags during work.
lAfter replacing ATF, dispose of the waste oil using the methods prescribed by law, ordinance, etc.
lBefore 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.
lDisassembly should be done in a clean work area.
lUse 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.
lPlace disassembled parts in order for easier and proper assembly.
lAll parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
lGaskets, seals and O-rings should be replaced any time the transmission is disassembled.
lIt is very important to perform functional tests whenever they are indicated.
lThe 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.
lProperly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
lBefore 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.
lExtreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
lAfter overhaul, refill the transmission with new ATF.
lWhen the drain plug is removed, only some of the ATF is drained. Old ATF will remain in torque converter
and A/T fluid cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer
toAT-11, "
Changing A/T Fluid",AT-12, "Checking A/T Fluid".
SEF289H
A/T FLUID
AT-11
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A/T FLUIDPFP:KLE40
Changing A/T FluidECS00FWD
1. Warm up ATF.
2. Stop engine.
3. Loosen level gauge bolt.
4. Remove A/T fluid level gauge.
5. Remove drain plug and drain ATF from drain hole.
6. Install drain plug gasket and drain plug to oil pan.
CAUTION:
Do not reuse drain plug gasket.
7. Tighten drain plug to the specified torque. Refer toAT-218,
"COMPONENTS".
8. Refill with new ATF. Always refill same volume with drained ATF.
lTo replace the ATF, pour in new ATF at A/T fluid charging pipe
with the engine idling and at the same time drain the old ATF
from A/T fluid cooler hose return side.
lWhen the color of the ATF coming out is about the same as the color of the new ATF, the replacement
is complete. The amount of new ATF to use should be 30 to 50% increase of the specified amount.
CAUTION:
lUse only Genuine NISSAN ATF Matic Fluid J. Do not mix with other ATF.
lUsing ATF other than Genuine NISSAN ATF Matic Fluid J will cause deterioration in driveability
and A/T durability, and may damage the A/T, which is not covered by the NISSAN new vehicle
warranty.
lWhen filling ATF, take care not to spillover heat generating parts such as exhaust.
9. Run engine at idle speed for 5 minutes.
10. Check A/T fluid level and condition. Refer toAT-12, "
Checking A/T Fluid". If ATF is still dirty, repeat step 2
through 9.
11. Install the removed A/T fluid level gauge into A/T fluid charging pipe.
12. Tighten level gauge bolt to the specified torque. Refer toAT- 2 4 7 , "
COMPONENTS". ATF: Genuine NISSAN ATF Matic Fluid J
Fluid capacity:
10.3 (9-1/8 lmp qt)
SCIA4896E
A/T FLUID
AT-13
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CAUTION:
lWhen wiping away A/T fluid level gauge, always use lint-free paper, not a cloth one.
lTo check A/T fluid level, insert A/T fluid level gauge until
the cap contacts the end of A/T fluid charging pipe, with
A/T fluid level gauge reversed from the normal attach-
ment conditions as shown.
8. Check A/T fluid condition.
lIf ATF is very dark or smells burned, check operation of A/T.
Flush cooling system after repair of A/T.
lIf A/T fluid contains frictional material (clutches, bands, etc.),
replace radiator and flush cooler line using cleaning solvent
and compressed air after repair of A/T. Refer toCO-11,
"RADIATOR".
9. Install the removed A/T fluid level gauge into A/T fluid charging
pipe.
10. Tighten level gauge bolt to the specified torque. Refer toAT-247,
"COMPONENTS".
SCIA2899E
SCIA4896E
AT-14
A/T CONTROL SYSTEM
A/T CONTROL SYSTEM
PFP:31036
Cross-Sectional View (2WD Models)ECS00GVH
1. Front planetary gear 2. Mid planetary gear 3. Rear planetary gear
4. Direct clutch 5. High and low reverse clutch 6. Reverse brake
7. Drum support 8. Forward brake 9. Low coast brake
10. Input shaft 11. Torque converter 12. Oil pump
13. 3rd one-way clutch 14. Front brake 15. Input clutch
16. 1st one-way clutch 17. Control valve with TCM 18. Forward one-way clutch
19. Rear extension 20. Output shaft
SCIA7318E
A/T CONTROL SYSTEM
AT-15
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Cross-Sectional View (4WD Models)ECS00GVI
1. Front planetary gear 2. Mid planetary gear 3. Rear planetary gear
4. Direct clutch 5. High and low reverse clutch 6. Reverse brake
7. Drum support 8. Forward brake 9. Low coast brake
10. Input shaft 11. Torque converter 12. Oil pump
13. Front brake 14. 3rd one-way clutch 15. Input clutch
16. 1st one-way clutch 17. Control valve with TCM 18. Forward one-way clutch
19. Adapter case 20. Output shaft
SCIA5268E
AT-18
A/T CONTROL SYSTEM
POWER TRANSMISSION
“N” Position
Since both the forward brake and the reverse brake are released, torque from the input shaft drive is not trans-
mitted to the output shaft.
“P” Position
lThe same as for the “N” position, both the forward brake and the reverse brake are released, so torque
from the input shaft drive is not transmitted to the output shaft.
lThe parking pawl linked with the select lever meshes with the parking gear and fastens the output shaft
mechanically.
1. Front brake 2. Input clutch 3. Direct clutch
4. High and low reverse clutch 5. Reverse brake 6. Forward brake
7. Low coast brake 8. 1st one-way clutch 9. Forward one-way clutch
10. 3rd one-way clutch 11. Front sun gear 12. Input shaft
13. Mid internal gear 14. Front internal gear 15. Rear carrier
16. Rear sun gear 17. Mid sun gear 18. Front carrier
19. Mid carrier 20. Rear internal gear 21. Output shaft
22. Parking gear 23. Parking pawl
PCIA0003J
A/T CONTROL SYSTEM
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TCM FunctionECS00FWI
The function of the TCM is to:
lReceive input signals sent from various switches and sensors.
lDetermine required line pressure, shifting point, lock-up operation, and engine brake operation.
lSend required output signals to the respective solenoids.
CONTROL SYSTEM OUTLINE
The A/T senses vehicle operating conditions through various sensors or signals. It always controls the opti-
mum shift position and reduces shifting and lock-up shocks.
CONTROL SYSTEM DIAGRAM
SENSORS (or SIGNALS)
TCM
ACTUATORS
PNP switch
Accelerator pedal position signal
Closed throttle position signal
Wide open throttle position signal
Engine speed signal
A/T fluid temperature sensor
Revolution sensor
Vehicle speed signal
1st position switch signal
Overdrive control switch signal
Stop lamp switch signal
Turbine revolution sensor
ATF pressure switchShift control
Line pressure control
Lock-up control
Engine brake control
Timing control
Fail-safe control
Self-diagnosis
CONSULT-II communication line
Duet-EA control
CAN systemInput clutch solenoid valve
Direct clutch solenoid valve
Front brake solenoid valve
High and low reverse clutch solenoid
valve
Low coast brake solenoid valve
Torque converter clutch solenoid valve
Line pressure solenoid valve
OD OFF indicator lamp
Starter relay
Back-up lamp relay
SCIA7332E