2007 INFINITI FX35 AT 104

ACS-2Revision: 2006 July 2007 FX35/FX45
DTC 65 PRESSURE CONTROL .........................
... 54
DTC 74 LASER BEAM OFF CNTR ..................... ... 55
DTC 90 STOP LAMP RLY FIX ............................ ... 55
DTC 92 ECM CIRCUIT ........................................ ... 61
DTC 96 NP RANGE ............................................ ... 62
DTC 97 AT CIRCUIT ........................................... ... 64
DTC 98 GEAR POSITION ................................... ... 64
DTC 102 RADAR STAIN ..................................... ... 65
DTC 103 LASER SENSOR FAIL ......................... ... 65
DTC 104 LASER AIMING INCMP ....................... ... 66
DTC 107 LASER COMM FAIL ............................. ... 66
DTC 109 LASER HIGH TEMP ............................ ... 66
TROUBLE DIAGNOSIS FOR SYMPTOMS ........... ... 67
Symptom Chart .................................................... ... 67
Symptom 1: MAIN Switch Does Not Turn ON*
1 ,
MAIN Switch Does Not Turn OFF*
2 ..................... ... 68
Symptom 2: ICC System Cannot Be Set (MAIN
Switch Turns ON/OFF) ........................................ ... 68
Symptom 3: ICC System Cannot Be Operated by
CANCEL Switch, RESUME/ACCELERATE Switch
or DISTANCE Switch ........................................... ... 69
Symptom 4: ICC System Is Not Cancelled When the A/T Selector Lever Is in Other Than “D” and “M”
Position ................................................................ ... 70
Symptom 5: Chime Does Not Sound ................... ... 70
Symptom 6: Driving Force Is Hunting .................. ... 71
Symptom 7: ICC System Frequently Cannot Detect
the Vehicle Ahead/ Detection Zone Is Short ........ ... 71
Symptom 8: The System Does Not Detect the Vehi-
cle Ahead at All .................................................... ... 72
ELECTRICAL COMPONENT INSPECTION .......... ... 73
ICC Steering Switch ............................................. ... 73
Booster Solenoid .................................................. ... 73
Release Switch .................................................... ... 73
ICC Brake Switch and Stop Lamp Switch ............ ... 74
ICC Brake Hold Relay .......................................... ... 74
REMOVAL AND INSTALLATION ........................... ... 75
ICC Unit ............................................................... ... 75
REMOVAL ......................................................... ... 75
INSTALLATION ................................................. ... 75
ICC Sensor .......................................................... ... 75
REMOVAL ......................................................... ... 75
INSTALLATION ................................................. ... 76
ICC Steering Switch ............................................. ... 76

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS ACS-43
[ICC]
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ACS
Revision: 2006 July 2007 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)

ACS-66
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2006 July 2007 FX35/FX45
DTC 104 LASER AIMING INCMPNKS003FN
1. CHECK DIAGNOSIS
1. Adjust laser beam aiming. Erase DTC and perform ICC system running test.
2. After that, perform self-diagnosis of ICC system.
3. Check if “DTC 104 LASER AIMING INCMP” is indicated.
Is it indicated?
YES >> 1. Replace ICC sensor, and adjust laser beam aiming. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
NO >> INSPECTION END
DTC 107 LASER COMM FAILNKS003FO
1. CHECK ICC UNIT SELF-DIAGNOSIS
1. Perform self-diagnosis.
2. Check if “DTC 11 CONTROL UNIT” or “DTC 20 CAN COMM CIRCUIT” item other than “DTC 107 LASER COMM FAIL” is indicated in the self-diagnosis item in the display.
Is any indicated?
YES >> Go to applicable item inspection. Refer to ACS-44, "DTC 11 CONTROL UNIT" , and ACS-44,
"DTC 20 CAN COMM CIRCUIT" .
NO >> 1. Replace ICC sensor, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
DTC 109 LASER HIGH TEMPNKS003FP
1. CHECK SYMPTOM
Check if cooling system malfunctions.
Does it malfunction?
YES >> 1. Repair cooling system. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
NO >> 1. Replace ICC sensor, and adjust laser beam aiming. 2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

AT-1
AUTOMATIC TRANSMISSION
C TRANSMISSION/TRANSAXLE
CONTENTS
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Revision: 2006 July 2007 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
PREPARATION ...................................................... ... 10
Special Service Tools .......................................... ... 10
Commercial Service Tools ................................... .... 11
A/T FLUID .............................................................. ... 12
Changing A/T Fluid ............................................. ... 12
Checking A/T Fluid .............................................. ... 13
A/T Fluid Cooler Cleaning ................................... ... 15
A/T CONTROL SYSTEM ....................................... ... 18
Cross-sectional View (2WD Models) ................... ... 18
Cross-sectional View (VQ35DE Models for AWD) ... 19
Cross-sectional View (VK45DE Models for AWD) ... 20
Shift Mechanism .................................................. ... 21
TCM Function ...................................................... ... 32
CAN Communication ........................................... ... 33
Input/Output Signal of TCM ................................. ... 33
Line Pressure Control ......................................... ... 34
Shift Control ........................................................ ... 35
Lock-up Control ................................................... ... 37
Engine Brake Control .......................................... ... 38
Control Valve ....................................................... ... 38
ON BOARD DIAGNOSTIC (OBD) SYSTEM ......... ... 40
Introduction ......................................................... ... 40
OBD-II Function for A/T System .......................... ... 40
One or Two Trip Detection Logic of OBD-II ......... ... 40
OBD-II Diagnostic Trouble Code (DTC) .............. ... 40
Malfunction Indicator Lamp (MIL) ........................ ... 43
TROUBLE DIAGNOSIS ......................................... ... 44
DTC Inspection Priority Chart ............................. ... 44
Fail-safe .............................................................. ... 44 How to Perform Trouble Diagnosis for Quick and
Accurate Repair ................................................... ... 46
A/T Electrical Parts Location ............................... ... 51
Circuit Diagram .................................................... ... 52
Inspections Before Trouble Diagnosis ................. ... 53
Check Before Engine Is Started .......................... ... 57
Check at Idle ........................................................ ... 57
Cruise Test - Part 1 .............................................. ... 58
Cruise Test - Part 2 .............................................. ... 60
Cruise Test - Part 3 .............................................. ... 61
Vehicle Speed at Which Gear Shifting Occurs .... ... 62
Vehicle Speed at Which Lock-up Occurs/Releases ... 63
Symptom Chart .................................................... ... 64
TCM Input/Output Signal Reference Values ........ ... 89
CONSULT-II Function (A/T) ................................. ... 90
Diagnostic Procedure without CONSULT-II ......... .102
DTC U1000 CAN COMMUNICATION LINE ........... .104
Description ........................................................... .104
On Board Diagnosis Logic ................................... .104
Possible Cause .................................................... .104
DTC Confirmation Procedure .............................. .104
Wiring Diagram — AT — CAN ............................. .105
Diagnostic Procedure .......................................... .106
DTC P0615 START SIGNAL CIRCUIT .................. .107
Description ........................................................... .107
CONSULT-II Reference Value ............................. .107
On Board Diagnosis Logic ................................... .107
Possible Cause .................................................... .107
DTC Confirmation Procedure .............................. .107
Wiring Diagram — AT — STSIG ......................... .108
Diagnostic Procedure .......................................... .109
DTC P0700 TCM .................................................... .. 111
Description ........................................................... ..111
On Board Diagnosis Logic ................................... ..111
Possible Cause .................................................... ..111
DTC Confirmation Procedure .............................. ..111
Diagnostic Procedure .......................................... ..111
DTC P0705 PARK/NEUTRAL POSITION SWITCH .112
Description ........................................................... .112
CONSULT-II Reference Value ............................. .112

TROUBLE DIAGNOSIS AT-47
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Revision: 2006 July 2007 FX35/FX45
Work Flow Chart
DIAGNOSTIC WORKSHEET
Information from Customer
KEY POINTS

WHAT ..... Vehicle and A/T model

WHEN ..... Date, Frequencies
*1.AT- 4 7*2.AT- 4 8*3. AT- 4 4
*4.AT- 5 3*5.AT- 5 3, AT- 5 4*6. AT- 5 6
*7.AT- 9 0*8.AT- 4 0*9. AT- 4 4
*10.AT-104*11.AT- 1 7 7*12. AT- 1 8 6
*13.AT- 6 4*14.AT- 4 1*15. AT- 1 0 4
*16.AT-177*17. EC-54 (for VQ35DE) or
EC-716
(for VK45DE)
SCIA7037E

TROUBLE DIAGNOSIS AT-49
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Revision: 2006 July 2007 FX35/FX45
4 ❏
Perform all road tests and enter checks in required inspection items. AT- 5 6
4-1. Check before engine is started
AT- 5 7
❏ The A/T CHECK Indicator Lamp does come on. AT- 1 8 9 .
❏ Perform self-diagnostics. Enter checks for detected items. AT- 9 2
, AT- 1 0 2 .
❏ AT-104, "
DTC U1000 CAN COMMUNICATION LINE" .
❏ AT-107, "
DTC P0615 START SIGNAL CIRCUIT" .
❏ AT- 111 , "
DTC P0700 TCM"
❏ AT-112, "DTC P0705 PARK/NEUTRAL POSITION SWITCH" .
❏ AT-116, "
DTC P0717 TURBINE REVOLUTION SENSOR" .
❏ AT-118, "
DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)" .
❏ AT-123, "
DTC P0725 ENGINE SPEED SIGNAL" .
❏ AT-125, "
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE" .
❏ AT-127, "
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)" .
❏ AT-129, "
DTC P0745 LINE PRESSURE SOLENOID VALVE" .
❏ AT-131, "
DTC P1705 THROTTLE POSITION SENSOR" .
❏ AT-134, "
DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT" .
❏ AT-139, "
DTC P1721 VEHICLE SPEED SENSOR MTR" .
❏ AT-141, "
DTC P1730 A/T INTERLOCK" .
❏ AT-144, "
DTC P1731 A/T 1ST ENGINE BRAKING" .
❏ AT-146, "
DTC P1752 INPUT CLUTCH SOLENOID VALVE" .
❏ AT-148, "
DTC P1754 INPUT CLUTCH SOLENOID VALVE FUNCTION" .
❏ AT-150, "
DTC P1757 FRONT BRAKE SOLENOID VALVE" .
❏ AT-152, "
DTC P1759 FRONT BRAKE SOLENOID VALVE FUNCTION" .
❏ AT-154, "
DTC P1762 DIRECT CLUTCH SOLENOID VALVE" .
❏ AT-156, "
DTC P1764 DIRECT CLUTCH SOLENOID VALVE FUNCTION" .
❏ AT-158, "
DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE" .
❏ AT-160, "
DTC P1769 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE
FUNCTION" .
❏ AT-162, "
DTC P1772 LOW COAST BRAKE SOLENOID VALVE" .
❏ AT-164, "
DTC P1774 LOW COAST BRAKE SOLENOID VALVE FUNCTION" .
❏ AT-166, "
DTC P1815 MANUAL MODE SWITCH" .
❏ AT-171, "
DTC P1841 ATF PRESSURE SWITCH 1" .
❏ AT-173, "
DTC P1843 ATF PRESSURE SWITCH 3" .
❏ AT-175, "
DTC P1845 ATF PRESSURE SWITCH 5" .
❏ AT-177, "
DTC P1846 ATF PRESSURE SWITCH 6" .
4-2. Check at Idle
AT- 5 7
❏ AT- 1 9 0 , "Engine Cannot Be Started in “P” or “N” Position" .
❏ AT- 1 9 1 , "
In “P” Position, Vehicle Moves When Pushed"
❏ AT- 1 9 2 , "In “N” Position, Vehicle Moves" .
❏ AT- 1 9 3 , "
Large Shock (“N” to “D” Position)" .
❏ AT- 1 9 6 , "
Vehicle Does Not Creep Backward in “R” Position" .
❏ AT- 1 9 9 , "
Vehicle Does Not Creep Forward in “D” Position" .
4-3. Cruise Test
AT- 5 8
Part 1
❏ AT- 2 0 1 , "
Vehicle Cannot Be Started From D1" .
❏ AT- 2 0 4 , "
A/T Does Not Shift: D1 → D2" .
❏ AT- 2 0 6 , "
A/T Does Not Shift: D2 → D3" .
❏ AT- 2 0 8 , "
A/T Does Not Shift: D3 → D4" .
❏ AT- 2 11 , "
A/T Does Not Shift: D4 → D5" .
❏ AT- 2 1 3 , "
A/T Does Not Lock-up"
❏ AT- 2 1 5 , "A/T Does Not Hold Lock-up Condition" .
❏ AT- 2 1 7 , "
Lock-up Is Not Released" .
❏ AT- 2 1 7 , "
Engine Speed Does Not Return to Idle" .

AT-50
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
44-3. Part 2
AT- 6 0
❏ AT-201, "Vehicle Cannot Be Started From D1" .
❏ AT-204, "
A/T Does Not Shift: D1 → D2" .
❏ AT-206, "
A/T Does Not Shift: D2 → D3" .
❏ AT-208, "
A/T Does Not Shift: D3 → D4" .
Part 3 AT- 6 1
❏ AT-219, "Cannot Be Changed to Manual Mode" .
❏ AT-219, "
A/T Does Not Shift: 5th Gear → 4th Gear" .
❏ AT-221, "
A/T Does Not Shift: 4th Gear → 3rd Gear" .
❏ AT-223, "
A/T Does Not Shift: 3rd Gear → 2nd Gear" .
❏ AT-225, "
A/T Does Not Shift: 2nd Gear → 1st Gear" .
❏ AT-227, "
Vehicle Does Not Decelerate by Engine Brake" .
❏ Perform self-diagnostics. Enter checks for detected items. AT- 9 2
, AT-102 .
❏ AT-104, "
DTC U1000 CAN COMMUNICATION LINE" .
❏ AT-107, "
DTC P0615 START SIGNAL CIRCUIT" .
❏ AT- 111 , "
DTC P0700 TCM"
❏ AT- 11 2 , "DTC P0705 PARK/NEUTRAL POSITION SWITCH" .
❏ AT- 11 6 , "
DTC P0717 TURBINE REVOLUTION SENSOR" .
❏ AT- 11 8 , "
DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)" .
❏ AT-123, "
DTC P0725 ENGINE SPEED SIGNAL" .
❏ AT-125, "
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE" .
❏ AT-127, "
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)" .
❏ AT-129, "
DTC P0745 LINE PRESSURE SOLENOID VALVE" .
❏ AT-131, "
DTC P1705 THROTTLE POSITION SENSOR" .
❏ AT-134, "
DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT" .
❏ AT-139, "
DTC P1721 VEHICLE SPEED SENSOR MTR" .
❏ AT-141, "
DTC P1730 A/T INTERLOCK" .
❏ AT-144, "
DTC P1731 A/T 1ST ENGINE BRAKING" .
❏ AT-146, "
DTC P1752 INPUT CLUTCH SOLENOID VALVE" .
❏ AT-148, "
DTC P1754 INPUT CLUTCH SOLENOID VALVE FUNCTION" .
❏ AT-150, "
DTC P1757 FRONT BRAKE SOLENOID VALVE" .
❏ AT-152, "
DTC P1759 FRONT BRAKE SOLENOID VALVE FUNCTION" .
❏ AT-154, "
DTC P1762 DIRECT CLUTCH SOLENOID VALVE" .
❏ AT-156, "
DTC P1764 DIRECT CLUTCH SOLENOID VALVE FUNCTION" .
❏ AT-158, "
DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE" .
❏ AT-160, "
DTC P1769 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE
FUNCTION" .
❏ AT-162, "
DTC P1772 LOW COAST BRAKE SOLENOID VALVE" .
❏ AT-164, "
DTC P1774 LOW COAST BRAKE SOLENOID VALVE FUNCTION" .
❏ AT-166, "
DTC P1815 MANUAL MODE SWITCH" .
❏ AT-171, "
DTC P1841 ATF PRESSURE SWITCH 1" .
❏ AT-173, "
DTC P1843 ATF PRESSURE SWITCH 3" .
❏ AT-175, "
DTC P1845 ATF PRESSURE SWITCH 5" .
❏ AT-177, "
DTC P1846 ATF PRESSURE SWITCH 6" .
5 ❏ Inspect each system for items found to be NG in the self-diagnostics and repair or replace the malfunctioning parts.
6 ❏ Perform all road tests and enter the checks again for the required items. AT- 5 6
7 ❏
For any remaining NG items, perform the “diagnostics procedure” and repair or replace the malfunctioning
parts. See the chart for diagnostics by symptoms. (This chart also contains other symptoms and inspection pro-
cedures.) AT- 6 4
8
❏ Erase the results of the self-diagnostics from the TCM. AT- 9 5,
AT-
102

AT-62
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
3. CHECK ENGINE BRAKE
Check engine brake.
Does engine braking effectively reduce speed in M1 position?
YES >> 1. Stop the vehicle. 2. Perform self-diagnostics. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 2 ,
"Diagnostic Procedure without CONSULT-II" .
NO >> Enter a check mark at AT- 2 2 7 , "
Vehicle Does Not Decelerate by Engine Brake" on the AT- 4 7 ,
"DIAGNOSTIC WORKSHEET" , then continue trouble diagnosis.
Vehicle Speed at Which Gear Shifting OccursNCS001BN
2WD MODELS

At half throttle, the accelerator opening is 4/8 of the full opening.
AW D M OD E LS

At half throttle, the accelerator opening is 4/8 of the full opening.

At half throttle, the accelerator opening is 4/8 of the full opening.
Engine model VQ35DE
Throttle position Vehicle speed km/h (MPH)
D
1 → D2D2 → D3D3 → D4D4 → D5D5 → D4D4 → D3D3 → D2D2 → D1
Full throttle 68 - 72
(42 - 45) 106 - 114
(66 - 71) 164 - 174
(102 - 108) 235 - 245
(146 - 152) 231 - 241
(144 - 150) 144 - 154
(89 - 96) 89 - 97
(55 - 60) 43 - 47
(27 - 29)
Half throttle 54 - 58
(34 - 36) 84 - 90
(52 - 56) 127 - 135
(79 - 84) 159 - 167
(99 - 104) 104 - 112
(65 - 70) 75 - 83
(47 - 52) 35 - 41
(22 - 25) 11 - 1 5
(7 - 9)
Engine model VQ35DE
Throttle position Vehicle speed km/h (MPH)
D
1 → D2D2 → D3D3 → D4D4 → D5D5 → D4D4 → D3D3 → D2D2 → D1
Full throttle 62 - 66
(39 - 41) 96 - 104
(60 - 65) 149 - 159
(93 - 99) 213 - 223
(132 - 139) 209 - 219
(130 - 136) 131 - 141
(81 - 88) 81 - 89
(50 - 55) 39 - 43
(24 - 27)
Half throttle 49 - 53
(30 - 33) 76 - 82
(47 - 51) 115 - 123
(71 - 76) 144 - 152
(89 - 94) 95 - 103
(59 - 64) 67 - 75
(42 - 47) 32 - 38
(20 - 24) 11 - 1 5
(7 - 9)
Engine model VK45DE
Throttle position Vehicle speed km/h (MPH)
D
1 → D2D2 → D3D3 → D4D4 → D5D5 → D4D4 → D3D3 → D2D2 → D1
Full throttle 59 - 63
(37 - 39) 93 - 101
(58 - 63) 147 - 157
(92 - 98) 219 - 229
(137 - 143) 215 - 225
(134 - 141) 130 - 140
(81 - 88) 79 - 87
(49 - 54) 35 - 39
(22 - 24)
Half throttle 48 - 52
(30 - 33) 78 - 84
(48 - 52) 122 - 130
(76 - 81) 154 - 162
(96 - 101) 122 - 130
(76 - 81) 68 - 76
(42 - 47) 40 - 46
(25 - 29) 9 - 13
(6 - 8)