Engine INFINITI FX35 2004 Workshop Manual

AT-62
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
Vehicle Speed When Shifting GearsACS007AD
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 positionVehicle 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)154 - 164
(96 - 102)89 - 97
(55 - 60)37 - 43
(23 - 27)
Half throttle 54 - 58
(34 - 36)83 - 91
(52 - 57)126 - 136
(78 - 85)158 - 168
(98 - 104)103 - 113
(64 - 70)74 - 84
(46 - 52)34 - 42
(21 - 26)11 - 1 5
(7 - 9)
Engine model VQ35DE
Throttle positionVehicle 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)121 - 131
(75 - 81)81 - 89
(50 - 55)39 - 43
(24 - 27)
Half throttle 49 - 53
(30 - 33)75 - 83
(47 - 52)114 - 124
(71 - 77)141 - 151
(88 - 94)94 - 104
(58 - 65)66 - 76
(41 - 47)31 - 39
(19 - 24)11 - 1 5
(7 - 9)
Engine model VK45DE
Throttle positionVehicle speed km/h (MPH)
D
1 →D2D2 →D3D3 →D4D4 →D5D5 →D4D4 →D3D3 →D2D2 →D1
Full throttle 64 - 68
(40 - 42)98 - 106
(61 - 66)152 - 162
(94 - 101)219 - 229
(136 - 142)215 - 225
(134 - 140)136 - 146
(85 - 91)85 - 93
(53 - 58)41 - 45
(25 - 28)
Half throttle 31 - 35
(19 - 22)59 - 67
(37 - 42)100 - 110
(62 - 68)166 - 176
(103 - 109)107 - 117
(66 - 73)65 - 75
(40 - 47)38 - 46
(24 - 29)12 - 16
(7 - 10)

TROUBLE DIAGNOSIS
AT-63
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45
Vehicle Speed When Performing and Releasing Complete Lock-up ACS007AE
2WD MODELS

At closed throttle, the accelerator opening is less than 1/8 condition.

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

At closed throttle, the accelerator opening is less than 1/8 condition.

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

At closed throttle, the accelerator opening is less than 1/8 condition.

At half throttle, the accelerator opening is 4/8 of the full opening. Engine model VQ35DE
Throttle positionVehicle speed km/h (MPH)
Lock-up “ON” Lock-up “OFF”
Closed throttle 63 - 73 (39 - 45) 40 - 48 (25 - 30)
Half throttle 196 - 204 (122 - 127) 153 - 161 (95 - 100)
Engine model VQ35DE
Throttle positionVehicle speed km/h (MPH)
Lock-up “ON” Lock-up “OFF”
Closed throttle 59 - 67 (37 - 42) 56 - 64 (35 - 40)
Half throttle 178 - 186 (111 - 116) 139 - 147 (86 - 91)
Engine model VK45DE
Throttle positionVehicle speed km/h (MPH)
Lock-up “ON” Lock-up “OFF”
Closed throttle 66 - 74 (41 - 46) 53 - 61 (33 - 38)
Half throttle 191 - 199 (119 - 124) 136 - 144 (85 - 89)

AT-64
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
Vehicle Speed When Performing and Releasing Slip Lock-upACS007AF
2WD MODELS

At closed throttle, the accelerator opening is less than 1/8 condition.
AW D M OD E LS

At closed throttle, the accelerator opening is less than 1/8 condition.

At closed throttle, the accelerator opening is less than 1/8 condition. Engine modelVQ35DE
Throttle position Gear positionVehicle speed km/h (MPH)
Slip lock-up “ON” Slip lock-up “OFF”
Closed throttle4th 43 - 51 (27 - 32) 40 - 48 (25 - 30)
5th 51 - 59 (32 - 37) 48 - 56 (30 - 35)
Engine modelVQ35DE
Throttle position Gear positionVehicle speed km/h (MPH)
Slip lock-up “ON” Slip lock-up “OFF”
Closed throttle4th 40 - 48 (25 - 30) 36 - 44 (22 - 27)
5th 48 - 56 (30 - 35) 45 - 53 (28 - 33)
Engine modelVK45DE
Throttle position Gear positionVehicle speed km/h (MPH)
Slip lock-up “ON” Slip lock-up “OFF”
Closed throttle4th 39 - 47 (24 - 29) 34 - 42 (21 - 26)
5th 47 - 55 (29 - 34) 44 - 52 (27 - 32)

TROUBLE DIAGNOSIS
AT-65
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45
Symptom ChartACS007AG

The diagnostics item numbers show the sequence for inspection. Inspect in order from Item 1.

Overhaul and inspection inside the A/T only if A/T fluid condition is NG. Refer to AT- 5 1 , "Fluid Condition
Check" .
No. Items Symptom Condition Diagnostic ItemReference
page
1
Shift
ShockLarge shock. (N → D
position)
Refer to AT-195,
"Large Shock (“N” to
“D” Position)" .ON vehicle1. Engine idle speedEC-37
(for
VQ35DE)
or EC-685

(for
VK45DE)
2. Engine speed signalAT-121
3. Accelerator pedal position sensorAT-136
4. Control linkage adjustmentAT-234
5. ATF temperature sensorAT-139
6. ATF pressure switch 1 and front brake solenoid valveAT-178,
AT-156
7. CAN communication lineAT-105
8. Fluid level and stateAT- 5 1
9. Line pressure testAT- 5 2
10. Control valve with TCMAT-242
OFF vehicle11. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17, "Cross-Sectional View (2WD Models)" or AT-18, "Cross-
Sectional View (AWD Models)" )AT-286
2Shock is too large
when changing D1 →
D
2 or M1 → M2 .ON vehicle1. Accelerator pedal position sensorAT-136
2. Control linkage adjustmentAT-234
3. ATF pressure switch 5 and direct clutch solenoid valveAT-182,
AT-160
4. CAN communication lineAT-105
5. Engine speed signalAT-121
6. Turbine revolution sensorAT-143
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT-145
8. Fluid level and stateAT- 5 1
9. Control valve with TCMAT-242
OFF vehicle 10. Direct clutchAT-323

AT-66
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
3
Shift
ShockShock is too large
when changing D2 →
D
3 or M2 → M3 .ON vehicle1. Accelerator pedal position sensorAT- 1 3 6
2. Control linkage adjustmentAT- 2 3 4
3. ATF pressure switch 6, high and low reverse clutch sole-
noid valveAT- 1 8 4,
AT- 1 6 4
4. CAN communication lineAT- 1 0 5
5. Engine speed signalAT- 1 2 1
6. Turbine revolution sensorAT- 1 4 3
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT- 1 4 5
8. Fluid level and stateAT- 5 1
9. Control valve with TCMAT- 2 4 2
OFF vehicle 10. High and low reverse clutchAT- 3 2 0
4Shock is too large
when changing D3 →
D
4 or M3 → M4 .ON vehicle1. Accelerator pedal position sensorAT- 1 3 6
2. Control linkage adjustmentAT- 2 3 4
3. ATF pressure switch 3 and input clutch solenoid valveAT- 1 8 0,
AT- 1 5 2
4. CAN communication lineAT- 1 0 5
5. Engine speed signalAT- 1 2 1
6. Turbine revolution sensorAT- 1 4 3
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT- 1 4 5
8. Fluid level and stateAT- 5 1
9. Control valve with TCMAT- 2 4 2
OFF vehicle 10. Input clutchAT- 3 0 8
5Shock is too large
when changing D4 →
D
5 or M4 → M5 .ON vehicle1. Accelerator pedal position sensorAT- 1 3 6
2. Control linkage adjustmentAT- 2 3 4
3. ATF pressure switch 1 and front brake solenoid valveAT- 1 7 8,
AT- 1 5 6

4. CAN communication lineAT- 1 0 5
5. Engine speed signalAT- 1 2 1
6. Turbine revolution sensorAT- 1 4 3
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT- 1 4 5
8. Fluid level and stateAT- 5 1
9. Control valve with TCMAT- 2 4 2
OFF vehicle10. Front brake (brake band)AT- 2 7 411. Input clutchAT- 3 0 8
No. Items Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-67
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45
6
Shift
ShockShock is too large for
downshift when accel-
erator pedal is
pressed.ON vehicle1. Accelerator pedal position sensorAT-136
2. Control linkage adjustmentAT-234
3. CAN communication lineAT-105
4. Engine speed signalAT-121
5. Turbine revolution sensorAT-143
6. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT-145
7. Fluid level and stateAT- 5 1
8. Control valve with TCMAT-242
OFF vehicle9. Front brake (brake band)AT-27410. Input clutch AT-308
11. High and low reverse clutchAT-320
12. Direct clutchAT-323
7Shock is too large for
upshift when acceler-
ator pedal is released.ON vehicle1. Accelerator pedal position sensorAT-136
2. Control linkage adjustmentAT-234
3. Engine speed signalAT-121
4. CAN communication lineAT-105
5. Turbine revolution sensorAT-143
6. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT-145
7. Fluid level and stateAT- 5 1
8. Control valve with TCMAT-242
OFF vehicle9. Front brake (brake band)AT-27410. Input clutch AT-308
11. High and low reverse clutch AT-320
12. Direct clutch AT-323
8Shock is too large for
lock-up.ON vehicle1. Accelerator pedal position sensorAT-136
2. Control linkage adjustmentAT-234
3. Engine speed signalAT-121
4. CAN communication lineAT-105
5. Turbine revolution sensorAT-143
6. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT-145
7. Torque converter clutch solenoid valveAT-123
8. Fluid level and stateAT- 5 1
9. Control valve with TCMAT-242
OFF vehicle 10. Torque converterAT-286
No. Items Symptom Condition Diagnostic ItemReference
page

AT-68
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
9Shift
ShockShock is too large
during engine brake.ON vehicle1. Accelerator pedal position sensorAT- 1 3 6
2. Control linkage adjustmentAT- 2 3 4
3. CAN communication lineAT- 1 0 5
4. Fluid level and stateAT- 5 1
5. Control valve with TCMAT- 2 4 2
OFF vehicle6. Front brake (brake band)AT- 2 7 47. Input clutch AT- 3 0 8
8. High and low reverse clutchAT- 3 2 0
9. Direct clutch AT- 3 2 3
10
No Up
ShiftGear does not change
from D
1 → D2 or from
M
1 → M2 .
Refer to AT-206, "
A/T
Does Not Shift: D1 →
D2" .ON vehicle1. Fluid level and stateAT- 5 1
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT- 1 4 5
3. ATF pressure switch 5 and direct clutch solenoid valveAT- 1 8 2,
AT- 1 6 0
4. Line pressure testAT- 5 2
5. CAN communication lineAT- 1 0 5
6. Control valve with TCMAT- 2 4 2
OFF vehicle 7. Direct clutchAT- 3 2 3
11Gear does not change
from D
2 → D3 or from
M
2 → M3 .
Refer to AT-208, "
A/T
Does Not Shift: D2 →
D3" .ON vehicle1. Fluid level and stateAT- 5 1
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT- 1 4 5
3. ATF pressure switch 6, high and low reverse clutch sole-
noid valveAT- 1 8 4,
AT- 1 6 4
4. Line pressure testAT- 5 2
5. CAN communication lineAT- 1 0 5
6. Control valve with TCMAT- 2 4 2
OFF vehicle 7. High and low reverse clutchAT- 3 2 0
12Gear does not change
from D
3 → D4 or from
M
3 → M4 .
Refer to AT- 2 11 , "
A/T
Does Not Shift: D3 →
D4" .ON vehicle1. Fluid level and stateAT- 5 1
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT- 1 4 5
3. ATF pressure switch 3 and input clutch solenoid valveAT- 1 8 0,
AT- 1 5 2
4. ATF pressure switch 1 and front brake solenoid valveAT- 1 7 8,
AT- 1 5 6
5. Line pressure testAT- 5 2
6. CAN communication lineAT- 1 0 5
7. Control valve with TCMAT- 2 4 2
OFF vehicle 8. Input clutchAT- 3 0 8
No. Items Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-73
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45
23
Slips/Will
Not
EngageVehicle cannot be
started from D
1 .
Refer to AT-203,
"Vehicle Cannot Be
Started From D1" .ON vehicle1. Fluid level and stateAT- 5 1
2. Accelerator pedal position sensorAT-136
3. Line pressure testAT- 5 2
4. CAN communication lineAT-105
5. Control valve with TCMAT-242
OFF vehicle6. Torque converterAT-286
7. Oil pump assemblyAT-303
8. 3rd one-way clutchAT-306
9. 1st one-way clutch AT-314
10. Gear systemAT-274
11. Reverse brakeAT-286
12. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT- 1 7 , "
Cross-Sectional View (2WD Models)" or AT- 1 8 ,
"Cross-Sectional View (AWD Models)" )AT-286
13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-Sectional View (2WD Models)" or AT-18, "Cross-
Sectional View (AWD Models)" )AT-286
24Does not lock-up.
Refer to AT-216, "A/T
Does Not Perform
Lock-up" .ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. Engine speed signalAT-121
4. Turbine revolution sensorAT-143
5. Torque converter clutch solenoid valveAT-123
6. CAN communication lineAT-105
7. Control valve with TCMAT-242
OFF vehicle8. Torque converterAT-2869. Oil pump assemblyAT-303
25Does not hold lock-up
condition.
Refer to AT-218, "A/T
Does Not Hold Lock-
up Condition" .ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. Engine speed signalAT-121
4. Turbine revolution sensorAT-143
5. Torque converter clutch solenoid valveAT-123
6. CAN communication lineAT-105
7. Control valve with TCMAT-242
OFF vehicle8. Torque converterAT-2869. Oil pump assemblyAT-303
No. Items Symptom Condition Diagnostic ItemReference
page

AT-74
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
26
Slips/Will
Not
engageLock-up is not
released.
Refer to AT-220,
"Lock-up Is Not
Released" .ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. Engine speed signalAT- 1 2 1
4. Turbine revolution sensorAT- 1 4 3
5. Torque converter clutch solenoid valveAT- 1 2 3
6. CAN communication lineAT- 1 0 5
7. Control valve with TCMAT- 2 4 2
OFF vehicle8. Torque converterAT- 2 8 69. Oil pump assemblyAT- 3 0 3
27No shock at all or the
clutch slips when
vehicle changes
speed D
1 → D2 or
M
1 → M2 . ON vehicle1. Fluid level and stateAT- 5 1
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT- 1 4 5
3. ATF pressure switch 5 and direct clutch solenoid valveAT- 1 8 2,
AT- 1 6 0
4. CAN communication lineAT- 1 0 5
5. Line pressure testAT- 5 2
6. Control valve with TCMAT- 2 4 2
OFF vehicle7. Torque converterAT- 2 8 6
8. Oil pump assemblyAT- 3 0 3
9. 3rd one-way clutchAT- 3 0 6
10. Gear systemAT- 2 7 4
11. Direct clutchAT- 3 2 3
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-Sectional View (2WD Models)" or AT- 1 8 , "Cross-
Sectional View (AWD Models)" )AT- 2 8 6
No. Items Symptom Condition Diagnostic ItemReference
page

AT-76
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
30
Slips/Will
Not
engageNo shock at all or the
clutch slips when
vehicle changes
speed D
4 → D5 or
M
4 → M5 .ON vehicle1. Fluid level and stateAT- 5 1
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT- 1 4 5
3. ATF pressure switch 1 and front brake solenoid valveAT- 1 7 8,
AT- 1 5 6
4. ATF pressure switch 5 and direct clutch solenoid valveAT- 1 8 2,
AT- 1 6 0
5. CAN communication lineAT- 1 0 5
6. Line pressure testAT- 5 2
7. Control valve with TCMAT- 2 4 2
OFF vehicle8. Torque converterAT- 2 8 6
9. Oil pump assemblyAT- 3 0 3
10. Front brake (brake band)AT- 2 8 6
11. Input clutchAT- 3 0 8
12. Gear systemAT- 2 7 4
13. High and low reverse clutchAT- 3 2 0
31When you press the
accelerator pedal and
shift speed D5 → D4
or M
5 → M4 the
engine idles or the
transmission slips.ON vehicle1. Fluid level and stateAT- 5 1
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT- 1 4 5
3. ATF pressure switch 1 and front brake solenoid valveAT- 1 7 8,
AT- 1 5 6
4. ATF pressure switch 5 and direct clutch solenoid valveAT- 1 8 2,
AT- 1 6 0
5. CAN communication lineAT- 1 0 5
6. Line pressure testAT- 5 2
7. Control valve with TCMAT- 2 4 2
OFF vehicle8. Torque converterAT- 2 8 6
9. Oil pump assemblyAT- 3 0 3
10. Input clutchAT- 3 0 8
11. Gear systemAT- 2 7 4
12. High and low reverse clutchAT- 3 2 0
13. Direct clutchAT- 3 2 3
No. Items Symptom Condition Diagnostic ItemReference
page