2004 INFINITI FX35 brake fluid

DESCRIPTION
ACS-7
[ICC]
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Revision: 2004 November 2004 FX35/FX45
Components DescriptionAKS006YD
CAN CommunicationAKS00815
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tric control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN COMMUNICATION UNIT
Refer to LAN-6, "CAN Communication Unit" .
Switch OperationAKS006YF
The system is operated by a master ON/OFF switch and four control switches, all mounted on the steering
wheel.
ComponentVe h i -
cle-to-
vehi-
cle dis-
tance
con-
trol
modeCon-
ven-
tional
(fixed
speed)
cruise
con-
trol
modeBrake
assist
(with
pre-
view
brake)Description
ICC unit×××Operates throttle control actuator and brake booster based on that sensor
signals and CAN communication data, then controls vehicle distance.
ICC sensor××Irradiate laser beam, and receives reflected laser beam to measure dis-
tance from preceding vehicle.
ECM××Transmits throttle position signal and ICC steering switch signal to ICC unit.
ABS actuator and electric
unit (control unit)×××Transmits wheel speed signal to ICC unit.
Brake pressure sensor××Detects fluid pressure in master cylinder.
Brake booster××Adjusts brake fluid pressure, based on command from ICC unit.
BCM×Transmit front wiper request signal to ICC unit.
TCM××Transmits gear position signal and output shaft revolution signal to ICC
unit.
SKIA5973E

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
ACS-33
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Revision: 2004 November 2004 FX35/FX45
ACTIVE TEST
Caution

Do not perform the active test while driving.

Active test cannot be started while ICC system warning indicator illuminates.
1. Touch “ACTIVE TEST” on selection screenACS-30, "
CONSULT-II INSPECTION PROCEDURE" .
2. Touch any of “ICC BUZZER 1”, “METER LAMP”, “STOP LAMP”
and “BOOSTER SOL/V 3” on selection screen.
3. Touch necessary item and “START”.
4. Active test screen will be shown.
IDLE SW
[ON/OFF]××Indicates [ON/OFF] status of idle switch read by ICC unit
via CAN communication (ECM transmits ON/OFF status
via CAN communication).
GEAR
[1, 2, 3, 4, 5]××Indicates AT gear position read by ICC unit via CAN com-
munication (TCM transmits gear position via CAN commu-
nication).
BUZZER O/P
[ON/OFF] ×Indicates [ON/OFF] status of ICC war output.
ICC WARNING×NOTE:
This item is displayed, but cannot monitoring.
VHCL SPD AT
[km/h] or [mph]
×Indicates vehicle speed calculated from AT vehicle speed
sensor by ICC unit via CAN communication (TCM trans-
mits AT vehicle speed sensor signal via CAN communica-
tion).
PRESS SENS
[bar]×××Indicates brake fluid pressure value calculated from signal
voltage of pressure sensor.
PRESS SENS 2×NOTE:
This item is displayed, but cannot monitoring.
D RANGE SW
[ON/OFF]××Indicates [ON/OFF] status of “D” position read by ICC unit
via CAN communication (TCM transmits ON/OFF condi-
tion of “D” position via CAN communication).
AT OD OFF
[ON/OFF]×Indicates [ON/OFF] status of OD cancel output under con-
trol.
NP RANGE SW
[ON/OFF]××Indicates PNP switch signal read by ICC unit via CAN
communication. TCM transmits PNP switch signal via CAN
communication.
DISTANCE×NOTE:
This item is displayed, but cannot monitoring.
RELATIVE SPD×NOTE:
This item is displayed, but cannot monitoring.
STP LMP DRIVE
[ON/OFF]××Indicates [ON/OFF] status of brake hold relay drive output. Monitored Item [unit]MAIN SIG-
NALSECU
INPUT
SIGNALSSELEC-
TION
FROM
MENUDescription
SKIA6195E

AT-1
AUTOMATIC TRANSMISSION
C TRANSMISSION/TRANSAXLE
CONTENTS
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SECTION AT
A
B
AT
Revision: 2004 November 2004 FX35/FX45
AUTOMATIC TRANSMISSION
INDEX FOR DTC ........................................................ 5
Alphabetical Index .................................................... 5
DTC No. Index ......................................................... 6
PRECAUTIONS .......................................................... 7
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 7
Precautions for On Board Diagnostic (OBD) System
of A/T and Engine .................................................... 7
Precautions .............................................................. 8
Service Notice or Precautions .................................. 9
Wiring Diagrams and Trouble Diagnosis .................. 9
PREPARATION ......................................................... 10
Special Service Tools ............................................. 10
Commercial Service Tools ....................................... 11
A/T FLUID ................................................................. 12
Changing A/T Fluid ................................................ 12
Checking A/T Fluid ................................................. 12
A/T Fluid Cooler Cleaning ...................................... 14
A/T CONTROL SYSTEM .......................................... 17
Cross-Sectional View (2WD Models) ..................... 17
Cross-Sectional View (AWD Models) ..................... 18
Shift Mechanism ..................................................... 19
TCM Function ......................................................... 30
CAN Communication .............................................. 31
Input/Output Signal of TCM .................................... 31
Line Pressure Control ............................................ 32
Shift Control ........................................................... 33
Lock-up Control ...................................................... 34
Engine Brake Control ............................................. 36
Control Valve .......................................................... 36
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 38
Introduction ............................................................ 38
OBD-II Function for A/T System ............................. 38
One or Two Trip Detection Logic of OBD-II ............ 38
OBD-II Diagnostic Trouble Code (DTC) ................. 38
Malfunction Indicator Lamp (MIL) ........................... 41
TROUBLE DIAGNOSIS ............................................ 42
DTC Inspection Priority Chart ................................ 42
Fail-Safe ................................................................. 42How To Perform Trouble Diagnosis For Quick and
Accurate Repair ...................................................... 44
A/T Electrical Parts Location .................................. 49
Circuit Diagram ....................................................... 50
Inspections Before Trouble Diagnosis .................... 51
Check Before Engine is Started .............................. 55
Check at Idle ........................................................... 55
Cruise Test - Part 1 ................................................. 57
Cruise Test - Part 2 ................................................. 60
Cruise Test - Part 3 ................................................. 61
Vehicle Speed When Shifting Gears ...................... 62
Vehicle Speed When Performing and Releasing
Complete Lock-up .................................................. 63
Vehicle Speed When Performing and Releasing
Slip Lock-up ............................................................ 64
Symptom Chart ....................................................... 65
TCM Input/Output Signal Reference Values ........... 90
CONSULT-II ............................................................ 91
Diagnostic Procedure Without CONSULT-II .........103
DTC U1000 CAN COMMUNICATION LINE ............105
Description ............................................................105
On Board Diagnosis Logic ....................................105
Possible Cause .....................................................105
DTC Confirmation Procedure ...............................105
Wiring Diagram — AT — CAN ..............................106
Diagnostic Procedure ...........................................107
DTC P0615 START SIGNAL CIRCUIT ...................108
Description ............................................................108
CONSULT-II Reference Value ..............................108
On Board Diagnosis Logic ....................................108
Possible Cause .....................................................108
DTC Confirmation Procedure ...............................108
Wiring Diagram — AT — STSIG ..........................109
Diagnostic Procedure ...........................................110
DTC P0705 PARK/NEUTRAL POSITION SWITCH .112
Description ............................................................112
CONSULT-II Reference Value ..............................112
On Board Diagnosis Logic ....................................112
Possible Cause .....................................................112
DTC Confirmation Procedure ...............................112

AT-4Revision: 2004 November 2004 FX35/FX45CONSULT-II Reference Value ..............................187
Diagnostic Procedure ...........................................187
TROUBLE DIAGNOSIS FOR SYMPTOMS ............188
Wiring Diagram — AT — NONDTC ......................188
A/T CHECK Indicator Lamp Does Not Come On . 191
Engine Cannot Be Started In “P” or “N” Position ..193
In “P” Position, Vehicle Moves When Pushed ......193
In “N” Position, Vehicle Moves ..............................194
Large Shock (“N” to “D” Position) .........................195
Vehicle Does Not Creep Backward In “R” Position .198
Vehicle Does Not Creep Forward In “D” Position . 201
Vehicle Cannot Be Started From D
1 .....................203
A/T Does Not Shift: D
1 → D2 ................................206
A/T Does Not Shift: D
2 → D3 ................................208
A/T Does Not Shift: D
3 → D4 ................................211
A/T Does Not Shift: D
4 → D5 ................................213
A/T Does Not Perform Lock-up ............................216
A/T Does Not Hold Lock-up Condition ..................218
Lock-up Is Not Released ......................................220
Engine Speed Does Not Return To Idle ................221
Cannot Be Changed to Manual Mode ..................222
A/T Does Not Shift: 5th gear → 4th gear ..............223
A/T Does Not Shift: 4th gear → 3rd gear ..............225
A/T Does Not Shift: 3rd gear → 2nd gear .............227
A/T Does Not Shift: 2nd gear → 1st gear .............229
Vehicle Does Not Decelerate By Engine Brake ....231
SHIFT CONTROL SYSTEM ....................................233
Control Device Removal and Installation ..............233
Adjustment of A/T Position ...................................234
Checking of A/T Position ......................................234
A/T SHIFT LOCK SYSTEM .....................................235
Description ............................................................235
Shift Lock System Electrical Parts Location .........235
Wiring Diagram — AT — SHIFT ...........................236
Diagnostic Procedure ...........................................237
KEY INTERLOCK CABLE ......................................239
Components .........................................................239
Removal and Installation ......................................240
ON-VEHICLE SERVICE ..........................................242
Control Valve with TCM and A/T Fluid Temperature
Sensor 2 ...............................................................242
Parking Components (2WD Models Only) ............253Rear Oil Seal .........................................................259
Revolution Sensor Components (2WD Models
Only) .....................................................................260
AIR BREATHER HOSE ...........................................264
Removal and Installation .......................................264
TRANSMISSION ASSEMBLY .................................266
Removal and Installation (2WD Models) ...............266
Removal and Installation (AWD models) ..............269
OVERHAUL .............................................................274
Components ..........................................................274
Oil Channel ...........................................................282
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings ..........................284
DISASSEMBLY .......................................................286
Disassembly ..........................................................286
REPAIR FOR COMPONENT PARTS ......................303
Oil Pump ...............................................................303
Front Sun Gear, 3rd One-Way Clutch ...................306
Front Carrier, Input Clutch, Rear Internal Gear .....308
Mid Sun Gear, Rear Sun Gear, High and Low
Reverse Clutch Hub ..............................................314
High and Low Reverse Clutch ..............................320
Direct Clutch .........................................................323
ASSEMBLY .............................................................325
Assembly (1) .........................................................325
Adjustment ............................................................338
Assembly (2) .........................................................341
SERVICE DATA AND SPECIFICATIONS (SDS) ....348
General Specifications ..........................................348
Vehicle Speed When Shifting Gears .....................348
Vehicle Speed When Performing and Releasing
Complete Lock-up .................................................349
Vehicle Speed When Performing and Releasing
Slip Lock-up ..........................................................349
Stall Speed ............................................................350
Line Pressure ........................................................350
A/T Fluid Temperature Sensor ..............................350
Turbine Revolution Sensor ....................................350
Vehicle Speed Sensor A/T (Revolution Sensor) ...350
Reverse Brake ......................................................350
Total End Play .......................................................351

AT-12
A/T FLUID
Revision: 2004 November 2004 FX35/FX45
A/T FLUIDPFP:KLE40
Changing A/T FluidACS0079Z
1. Warm up ATF.
2. Stop engine.
3. Loosen the level gauge bolt.
4. Drain ATF from drain plug and refill with new ATF. Always refill
same volume with drained fluid.

To replace the ATF, pour in new fluid at the charging pipe with
the engine idling and at the same time drain the old fluid from
the radiator cooler hose return side.

When the color of the fluid coming out is about the same as
the color of the new fluid, the replacement is complete. The
amount of new transmission fluid to use should be 30 to 50%
increase of the stipulated amount.
CAUTION:

Use only Genuine Nissan Matic J ATF. Do not mix with other fluid.

Using automatic transmission fluid other than Genuine Nissan Matic J ATF will cause deteriora-
tion in drive ability and automatic transmission durability, and may damage the automatic trans-
mission, which is not covered by the warranty.

When filling ATF, take care not to splash heat generating parts such as exhaust with ATF.

Do not reuse drain plug gasket.
5. Run engine at idle speed for 5 minutes.
6. Check fluid level and condition. Refer to AT- 1 2 , "
Checking A/T Fluid" . If fluid is still dirty, repeat step 2
through 5.
7. Install the removed A/T fluid level gauge in the A/T fluid charging pipe.
8. Tighten the level gauge bolt.
Checking A/T FluidACS007A0
1. Warm up engine.
2. Check for fluid leakage.
3. Loosen the level gauge bolt.
4. Before driving, fluid level can be checked at fluid temperatures
of 30 to 50°C (86 to 122°F) using “COLD” range on A/T fluid
level gauge as follows.
a. Park vehicle on level surface and set parking brake.
b. Start engine and move selector lever through each gear posi-
tion. Leave selector lever in “P” position.
c. Check fluid level with engine idling.
d. Remove A/T fluid level gauge and wipe clean with lint-free
paper.
CAUTION:
When wiping away the A/T fluid level gauge, always use
lint-free paper, not a cloth one.A/T fluid: Genuine Nissan Matic J ATF
Fluid capacity: 10.3 (10-7/8 US qt, 9-1/8 lmp qt)
Drain plug:
: 34 N·m (3.5 kg-m, 25 ft-lb)
Level gauge bolt:
: 5.1 N·m (0.52 kg-m, 45 in-lb)
SCIA4896E
SCIA4835E

AT-30
A/T CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
TCM FunctionACS002LF
The function of the TCM is to:

Receive input signals sent from various switches and sensors.

Determine required line pressure, shifting point, lock-up operation, and engine brake operation.

Send required output signals to the respective solenoids.
CONTROL SYSTEM OUTLINE
The automatic transmission senses vehicle operating conditions through various sensors or signals. It always
controls the optimum shift position and reduces shifting and lock-up shocks.
CONTROL SYSTEM DIAGRAM
SENSORS (or SIGNALS)

TCM

ACTUATORS
PNP switch
Accelerator pedal position sensor
Closed throttle position signal
Wide open throttle position signal
Engine speed signal
A/T fluid temperature sensor
Revolution sensor
Vehicle speed signal
Manual mode 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
A/T CHECK indicator lamp
Starter relay
Back-up lamp relay
SCIA5325E

A/T CONTROL SYSTEM
AT-31
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Revision: 2004 November 2004 FX35/FX45
CAN CommunicationACS004PB
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only. For details, refer to LAN-6,
"CAN Communication Unit"
Input/Output Signal of TCMACS002LH
*1: Spare for vehicle speed sensor·A/T (revolution sensor)
*2: Spare for accelerator pedal position signal
*3: If these input and output signals are different, the TCM triggers the fail-safe function.
*4: Used as a condition for starting self-diagnostics; if self-diagnostics are not started, it is judged that there is some kind of error.
*5: CAN communicationsControl itemLine
pressure
controlVehicle
speed
controlShift
controlLock-up
controlEngine
brake
controlFail-safe
function
(*3)Self-diag-
nostics
function
InputAccelerator pedal position signal
(*5)XXXXXXX
Vehicle speed sensor A/T
(revolution sensor)XXXX XX
Vehicle speed sensor MTR
(*1) (*5)XXXX X
Closed throttle position signal
(*5)(*2) X (*2) X X (*2) X (*4) X
Wide open throttle position signal
(*5)(*2) X (*2) X (*2) X (*4) X
Turbine revolution sensor 1 X X X X X
Turbine revolution sensor 2
(for 4th speed only)XX X XX
Engine speed signals
(*5)XX
PNP switch XXXXXX(*4) X
Stop lamp switch signal
(*5)XX(*4) X
A/T fluid temperature sensors 1, 2XXXXXXX
ASCD or
ICCOperation signal
(*5)XXXX
Overdrive cancel
signal
(*5)XXX
TCM power supply voltage signalXXXXX X
Out-
putDirect clutch solenoid (ATF pres-
sure switch 5)XX XX
Input clutch solenoid (ATF pressure
switch 3)XX XX
High and low reverse clutch sole-
noid (ATF pressure switch 6)XX XX
Front brake solenoid (ATF pressure
switch 1)XX XX
Low coast brake solenoid (ATF
pressure switch 2)XX XXX
Line pressure solenoid XXXXXXX
TCC solenoid X X X
Self-diagnostics table
(*5)X
Sta rter rela yXX

A/T CONTROL SYSTEM
AT-33
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During Shift Change
The necessary and adequate line pressure for shift change is set.
For this reason, line pressure pattern setting corresponds to input
torque and gearshift selection. Also, line pressure characteristic is
set according to engine speed, during engine brake operation.
At Low Fluid Temperature
When the A/T fluid temperature drops below the prescribed tempera-
ture, in order to speed up the action of each friction element, the line
pressure is set higher than the normal line pressure characteristic.
Shift ControlACS002LJ
The clutch pressure control solenoid is controlled by the signals from the switches and sensors. Thus, the
clutch pressure is adjusted to be appropriate to the engine load state and vehicle driving state. It becomes
possible to finely control the clutch hydraulic pressure with high precision and a smoother shift change charac-
teristic is attained.
SHIFT CHANGE
The clutch is controlled with the optimum timing and oil pressure by the engine speed, engine torque informa-
tion, etc.
PCIA0010E
PCIA0011E
PCIA0012E