2006 INFINITI FX35 speed sensor

ACS-42
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2006 December 2006 FX35/FX45
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMSPFP:00000
Diagnostic Trouble Code (DTC) ChartNKS003F3
× : Applicable
DTC No. CONSULT-II
screen terms ICC
system
warning lamp Fail-safe
Malfunctions detected where... Refer-
ence
page
Vehicle-
to-
vehicle
distance
control mode Conven-
tional
(fixed
speed) cruise
control
mode Brake
assist
(with
preview
function)
11 CONTROL UNIT ××××

ICC unit internal malfunctionACS-44
20 CAN COMM CIRCUIT ××××
ICC unit detected CAN communi-
cation malfunction. ACS-44
31 POWER SUPPLY CIR
××××
ICC unit power supply voltage is
excessively low (less than 8 V). ACS-44
34 POWER SUPPLY CIR2
××××
ICC unit power supply voltage is
excessively high (more than 19 V). ACS-44
41 VHCL SPEED SE CIRC
××××

Wheel sensor malfunction.

ABS actuator and electric unit (
control unit) malfunction

AT vehicle speed sensor malfunc-
tion

TCM malfunction ACS-45
43 ABS/TCS/VDC CIRC
××××
VDC/TCS/ABS system malfunc-
tion ACS-46
45 BRAKE SW/STOP L SW
××××

Brake and stop lamp switch har-
ness is open or shorted.

Brake and stop lamp switch is ON
or stuck to OFF.

Brake and stop lamp switch is
stuck to ON. ACS-46
46 OPERATION SW CIRC
×××

ICC steering switch harness or
spiral cable is open or shorted.

ICC steering switch malfunction ACS-48
61 PRESS SEN CIRCUIT
×× ×

Brake pressure sensor harness is
open or shorted.

Brake pressure sensor malfunc-
tion

Brake pressure sensor input circuit
malfunction ACS-50
62
BOOSTER SOL/V
CIRCUIT ×× ×

Solenoid harness is open or
shorted.

Solenoid is open.

Solenoid drive circuit malfunction ACS-51
63 RELEASE SW CIRCUIT
××××

Release switch harness is open or
shorted.

Release switch malfunction

Release switch input circuit mal-
function ACS-52
65 PRESSURE CONTROL
×× ×
Booster malfunctionACS-54
74 LASER BEAM OFF CNTR ×× ×
Laser beam of ICC sensor is off
the aiming point. ACS-55

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS ACS-43
[ICC]
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Revision: 2006 December 2006 FX35/FX45
90 STOP LAMP RLY FIX ×× ×
Normally open terminal of stop
lamp relay is stuck. ACS-55
92 ECM CIRCUIT
××××

ECM malfunction

Accelerator pedal position sensor
malfunction

ICC unit malfunction ACS-61
96 NP RANGE
×××

Park/neutral position switch har-
ness is open or shorted.

Park/neutral position switch mal-
function.

TCM malfunction ACS-62
97 AT CIRCUIT
×××
TCM malfunctionACS-64
98 GEAR POSITION ×××

TCM malfunction

AT turbine revolution sensor mal-
function

AT vehicle speed sensor malfunc-
tion ACS-64
102 RADAR STAIN
×× ×
ICC sensor body window has con-
tamination. ACS-65
103 LASER SENSOR FAIL
×× ×
ICC sensor internal malfunctionACS-65
104 LASER AIMING INCMP ×× ×
Laser beam aiming of ICC sensor
is not adjusted. ACS-66
107 LASER COMM FAIL
×× ×

CAN data received by ICC sensor
is strange (from ICC unit, combi-
nation meter or ECM). ACS-66
109 LASER HIGH TEMP
×× ×
Temperature around ICC sensor is
excessively high. ACS-66
DTC
No. CONSULT-II
screen terms ICC
system
warning
lamp Fail-safe
Malfunctions detected where... Refer-
ence
page
Vehicle-
to-
vehicle
distance control
mode Conven-
tional
(fixed
speed)
cruise
control mode Brake
assist (with
preview
function)

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS ACS-45
[ICC]
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Revision: 2006 December 2006 FX35/FX45
3. CHECK GROUND CIRCUIT FOR ICC UNIT
1. Turn ignition switch OFF.
2. Disconnect ICC unit connector.
3. Check continuity between ICC unit harness connector and ground.
OK or NG
OK >> 1. Replace ICC unit. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
NG >> 1. Repair ICC unit ground harness. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
DTC 41 VHCL SPEED SE CIRCNKS003F7
1. CHECK ICC UNIT SELF-DIAGNOSIS
1. Perform self-diagnosis.
2. Check if “DTC 43 ABS/TCS/VDC CIRC” or “DTC 20 CAN COMM CIRCUIT” other than “DTC 41 VHCL SPEED SE CIRC” is indicated in self-diagnosis item in the display.
Is any indicated?
YES >> 1. Repair or replace applicable item. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
NO >> GO TO 2.
2. CHECK AT VEHICLE SPEED SENSOR
With CONSULT-II
With “DATA MONITOR”, check “VHCL SPD AT” operates normally. Refer to ACS-33, "
DATA MONITOR" .
OK or NG
OK >> 1. Replace ICC unit. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
NG >> 1. Perform “A/T” self-diagnosis. 2. After repairing or replacing applicable item, erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
ICC unit con-
nector Terminal
Ground Continuity
M88 19
Ye s
20
M89 46
SKIA6650E

AT-2Revision: 2006 December 2006 FX35/FX45 On Board Diagnosis Logic ...................................
.112
Possible Cause .................................................... .112
DTC Confirmation Procedure .............................. .112
Wiring Diagram — AT — PNP/SW ...................... .113
Diagnostic Procedure .......................................... .114
DTC P0717 TURBINE REVOLUTION SENSOR ... .116
Description ........................................................... .116
CONSULT-II Reference Value ............................. .116
On Board Diagnosis Logic ................................... .116
Possible Cause .................................................... .116
DTC Confirmation Procedure .............................. .116
Diagnostic Procedure .......................................... .117
DTC P0720 VEHICLE SPEED SENSOR A/T (REV-
OLUTION SENSOR) .............................................. .118
Description ........................................................... .118
CONSULT-II Reference Value ............................. .118
On Board Diagnosis Logic ................................... .118
Possible Cause .................................................... .118
DTC Confirmation Procedure .............................. .118
Wiring Diagram — AT — VSSA/T ........................ .120
Diagnostic Procedure .......................................... .121
DTC P0725 ENGINE SPEED SIGNAL .................. .123
Description ........................................................... .123
CONSULT-II Reference Value ............................. .123
On Board Diagnosis Logic ................................... .123
Possible Cause .................................................... .123
DTC Confirmation Procedure .............................. .123
Diagnostic Procedure .......................................... .124
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE ................................................ .125
Description ........................................................... .125
CONSULT-II Reference Value ............................. .125
On Board Diagnosis Logic ................................... .125
Possible Cause .................................................... .125
DTC Confirmation Procedure .............................. .125
Diagnostic Procedure .......................................... .126
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) .127
Description ........................................................... .127
CONSULT-II Reference Value ............................. .127
On Board Diagnosis Logic ................................... .127
Possible Cause .................................................... .127
DTC Confirmation Procedure .............................. .127
Diagnostic Procedure .......................................... .128
DTC P0745 LINE PRESSURE SOLENOID VALVE .129
Description ........................................................... .129
CONSULT-II Reference Value ............................. .129
On Board Diagnosis Logic ................................... .129
Possible Cause .................................................... .129
DTC Confirmation Procedure .............................. .129
Diagnostic Procedure .......................................... .130
DTC P1705 THROTTLE POSITION SENSOR ...... .131
Description ........................................................... .131
CONSULT-II Reference Value ............................. .131
On Board Diagnosis Logic ................................... .131
Possible Cause .................................................... .131
DTC Confirmation Procedure .............................. .131
Diagnostic Procedure .......................................... .132
DTC P1710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT ................................................................. .134 Description ...........................................................
.134
CONSULT-II Reference Value .............................. .134
On Board Diagnosis Logic ................................... .134
Possible Cause .................................................... .134
DTC Confirmation Procedure ............................... .134
Wiring Diagram — AT — FTS .............................. .135
Diagnostic Procedure ........................................... .136
Component Inspection ......................................... .138
DTC P1721 VEHICLE SPEED SENSOR MTR ...... .139
Description ........................................................... .139
CONSULT-II Reference Value .............................. .139
On Board Diagnosis Logic ................................... .139
Possible Cause .................................................... .139
DTC Confirmation Procedure ............................... .139
Diagnostic Procedure ........................................... .140
DTC P1730 A/T INTERLOCK ................................ .141
Description ........................................................... .141
On Board Diagnosis Logic ................................... .141
Possible Cause .................................................... .141
DTC Confirmation Procedure ............................... .141
Judgement of A/T Interlock .................................. .141
Diagnostic Procedure ........................................... .142
DTC P1731 A/T 1ST ENGINE BRAKING .............. .144
Description ........................................................... .144
CONSULT-II Reference Value .............................. .144
On Board Diagnosis Logic ................................... .144
Possible Cause .................................................... .144
DTC Confirmation Procedure ............................... .144
Diagnostic Procedure ........................................... .145
DTC P1752 INPUT CLUTCH SOLENOID VALVE . .146
Description ........................................................... .146
CONSULT-II Reference Value .............................. .146
On Board Diagnosis Logic ................................... .146
Possible Cause .................................................... .146
DTC Confirmation Procedure ............................... .146
Diagnostic Procedure ........................................... .147
DTC P1754 INPUT CLUTCH SOLENOID VALVE
FUNCTION ............................................................. .148
Description ........................................................... .148
CONSULT-II Reference Value .............................. .148
On Board Diagnosis Logic ................................... .148
Possible Cause .................................................... .148
DTC Confirmation Procedure ............................... .148
Diagnostic Procedure ........................................... .149
DTC P1757 FRONT BRAKE SOLENOID VALVE .. .150
Description ........................................................... .150
CONSULT-II Reference Value .............................. .150
On Board Diagnosis Logic ................................... .150
Possible Cause .................................................... .150
DTC Confirmation Procedure ............................... .150
Diagnostic Procedure ........................................... .151
DTC P1759 FRONT BRAKE SOLENOID VALVE
FUNCTION ............................................................. .152
Description ........................................................... .152
CONSULT-II Reference Value .............................. .152
On Board Diagnosis Logic ................................... .152
Possible Cause .................................................... .152
DTC Confirmation Procedure ............................... .152
Diagnostic Procedure ........................................... .153

AT-4Revision: 2006 December 2006 FX35/FX45 A/T Does Not Shift: 5th Gear
→ 4th Gear ........... .219
A/T Does Not Shift: 4th Gear → 3rd Gear ........... .221
A/T Does Not Shift: 3rd Gear → 2nd Gear .......... .223
A/T Does Not Shift: 2nd Gear → 1st Gear ........... .225
Vehicle Does Not Decelerate by Engine Brake ... .227
SHIFT CONTROL SYSTEM ................................... .229
Control Device Removal and Installation ............. .229
Control Rod Removal and Installation ................. .230
Adjustment of A/T Position .................................. .231
Checking of A/T Position ..................................... .231
A/T SHIFT LOCK SYSTEM .................................... .232
Description ........................................................... .232
Shift Lock System Electrical Parts Location ........ .232
Wiring Diagram — AT — SHIFT .......................... .233
Diagnostic Procedure .......................................... .234
KEY INTERLOCK CABLE ..................................... .236
Components ........................................................ .236
Removal and Installation ..................................... .237
ON-VEHICLE SERVICE ......................................... .239
Control Valve with TCM and A/T Fluid Temperature
Sensor 2 .............................................................. .239
Parking Components (2WD Models Only) ........... .251
Rear Oil Seal ....................................................... .258
Revolution Sensor Components (2WD Models
Only) .................................................................... .259
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 .......................................................... .288
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings ......................... .291
DISASSEMBLY ...................................................... .294
Disassembly ......................................................... .294
REPAIR FOR COMPONENT PARTS ..................... .312
Oil Pump .............................................................. .312
Front Sun Gear, 3rd One-way Clutch ................... .315
Front Carrier, Input Clutch, Rear Internal Gear .... .317
Mid Sun Gear, Rear Sun Gear, High and Low
Reverse Clutch Hub ............................................. .323
High and Low Reverse Clutch ............................. .329
Direct Clutch ........................................................ .332
ASSEMBLY ............................................................ .335
Assembly (1) ........................................................ .335
Adjustment ........................................................... .349
Assembly (2) ........................................................ .352
SERVICE DATA AND SPECIFICATIONS (SDS) ... .359
General Specifications ......................................... .359
Vehicle Speed at Which Gear Shifting Occurs ..... .359
Vehicle Speed at Which Lock-up Occurs/Releases .360
Stall Speed ........................................................... .360
Line Pressure ....................................................... .360
A/T Fluid Temperature Sensor ............................. .360
Turbine Revolution Sensor ................................... .361
Vehicle Speed Sensor A/T (Revolution Sensor) .. .361
Reverse Brake ..................................................... .361
Total End Play ...................................................... .361

AT-32
A/T CONTROL SYSTEM
Revision: 2006 December 2006 FX35/FX45
TCM FunctionNCS001AZ
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 signal
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 switch Shift 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 system Input 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-33
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Revision: 2006 December 2006 FX35/FX45
CAN CommunicationNCS001B0
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-32,
"CAN Communication Unit" .
Input/Output Signal of TCMNCS001B1
*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 kin d of error.
*5: Input by CAN communications
*6: Output by CAN communications Control item
Line
pressure control Vehicle
speed
control Shift
control Lock-up
control Engine
brake
control Fail-safe
function (*3) Self-diag-
nostics
function
Input Accelerator pedal position signal
(*5)XXXXXXX
Vehicle speed sensor A/T
(revolution sensor) XXXXXXX
Vehicle speed sensor MTR
(*1) (*5)X
Closed throttle position signal
(*5)X (*2) X X X X (*4)
Wide open throttle position signal
(*5)XX (*4)
Turbine revolution sensor 1 X X X X X
Turbine revolution sensor 2
(for 4th speed only) X XXXX
Engine speed signals
(*5)XXXXXXX
Stop lamp switch signal
(*5)XXX X (*4)
A/T fluid temperature sensors 1, 2XXXX XX
ASCD or
ICC Operation signal
(*5)XXX
Overdrive cancel
signal
(*5)X
Out-
put Direct 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
(*6)X
Sta rter rela y XX

A/T CONTROL SYSTEM AT-35
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Revision: 2006 December 2006 FX35/FX45
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 ControlNCS001B3
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