2008 INFINITI FX35 Service Manual

MPG key fob tow bar relay towing capacity rims

Page 129 of 3924

INFINITI FX35 2008 Service Manual
AT-56
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
When releasing accelerator pedal from D5, check lock-up from D5 to L/U. Refer to AT-58, "Vehicle Speed at
Which Lock-up Occurs/Releases".
With CONSULT-

AT-56
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
When releasing accelerator pedal from D5, check lock-up from D5 to L/U. Refer to AT-58, "Vehicle Speed at
Which Lock-up Occurs/Releases".
With CONSULT-III
Select “TCC SOLENOID” with the “DATA MONI TOR” mode for “TRANSMISSION”. Refer to AT-84, "
CON-
SULT-III Function (TRANSMISSION)".
Does it lock-up?
YES >> GO TO 7.
NO >> Enter a check mark at AT-190, "
A/T Does Not Lock-up" on the “Diagnostic Worksheet Chart”, then
continue the road test.
7.CHECK LOCK-UP HOLD
Check hold lock-up. With CONSULT-III
Select “TCC SOLENOID” with the “DATA MONI TOR” mode for “TRANSMISSION”. Refer to AT-84, "
CON-
SULT-III Function (TRANSMISSION)".
Does it maintain lock-up status?
YES >> GO TO 8.
NO >> Enter a check mark at AT-192, "
A/T Does Not Hold Lock-up Condition" on the “Diagnostic Work-
sheet Chart”, then continue the road test.
8.CHECK LOCK-UP RELEASE
Check lock-up cancellation by depressing brake pedal lightly to decelerate. With CONSULT-III
Select “TCC SOLENOID” with the “DATA MONI TOR” mode for “TRANSMISSION”. Refer to AT-84, "
CON-
SULT-III Function (TRANSMISSION)".
Does lock-up cancel?
YES >> GO TO 9.
NO >> Enter a check mark at AT-194, "
Lock-up Is Not Released" on the “Diagnostic Worksheet Chart”,
then continue the road test.
9.CHECK SHIFT-DOWN D5 → D4
Decelerate by pressing lightly on the brake pedal.
With CONSULT-III
Read the gear position and engine speed. Refer to AT-84, "
CONSULT-III Function (TRANSMISSION)".
When the A/T shift-down D
5 → D4, does the engine speed drop smoothly back to idle?
YES >> 1. Stop the vehicle. 2. Go to AT-53, "
Road Test".
NO >> Enter a check mark at AT-194, "
Engine Speed Does Not Return to Idle" on the “Diagnostic Work-
sheet Chart”, then continue the road test. Go to AT-53, "
Road Test".
CRUISE TEST - PART 2
1.CHECK STARTING FROM D1
1. Move selector lever into “D” position.
2. Accelerate at half throttle.
With CONSULT-III
Read the gear position. Refer to AT-84, "
CONSULT-III Function (TRANSMISSION)".
Does it start from D
1?
YES >> GO TO 2.
NO >> Enter a check mark at AT-180, "
Vehicle Cannot Be Started from D1" on the “Diagnostic Worksheet
Chart”, then continue the road test.
2.CHECK SHIFT-UP D1 → D2
Press the accelerator pedal down all the way and check whether or not the A/T shifts up (D1 → D2) at the cor-
rect speed. Refer to AT-58, "
Vehicle Speed at Which Gear Shifting Occurs".
With CONSULT-III
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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INFINITI FX35 2008 Service Manual
TROUBLE DIAGNOSISAT-57
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P
Read the gear position, throttle pos ition and vehicle speed. Refer to AT-84, "CONSULT-III Function (TRANS-
MISSION)".
D

TROUBLE DIAGNOSISAT-57
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P
Read the gear position, throttle pos ition and vehicle speed. Refer to AT-84, "CONSULT-III Function (TRANS-
MISSION)".
Does the A/T shift-up D
1 → D2 at the correct speed?
YES >> GO TO 3.
NO >> Enter a check mark at AT-182, "
A/T Does Not Shift: D1→ D2" on the “Diagnostic Worksheet
Chart”, then continue the road test.
3.CHECK SHIFT-UP D2 → D3
Press the accelerator pedal down all the way and check whether or not the A/T shifts up (D2 → D3) at the cor-
rect speed. Refer to AT-58, "
Vehicle Speed at Which Gear Shifting Occurs".
With CONSULT-III
Read the gear position, throttle pos ition and vehicle speed. Refer to AT-84, "
CONSULT-III Function (TRANS-
MISSION)".
Does the A/T shift-up D
2 → D3 at the correct speed?
YES >> GO TO 4.
NO >> Enter a check mark at AT-184, "
A/T Does Not Shift: D2→ D3" on the “Diagnostic Worksheet
Chart”, then continue the road test.
4.CHECK SHIFT-UP D3 → D4 AND ENGINE BRAKE
When the A/T changes speed D
3 → D4, return the accelerator pedal.
With CONSULT-III
Read the gear position. Refer to AT-84, "
CONSULT-III Function (TRANSMISSION)".
Does the A/T shift-up D
3 → D4 and apply the engine brake?
YES >> 1. Stop the vehicle. 2. Go to AT-53, "
Road Test".
NO >> Enter a check mark at AT-186, "
A/T Does Not Shift: D3→ D4" on the “Diagnostic Worksheet
Chart”, then continue the road test. Go to AT-53, "
Road Test".
CRUISE TEST - PART 3
1.MANUAL MODE FUNCTION
Move to manual mode from “D” position.
Does it switch to manual mode?
YES >> GO TO 2.
NO >> Continue road test and add check mark to AT-195, "
Cannot Be Changed to Manual Mode" on the
“Diagnostic Worksheet Chart”.
2.CHECK SHIFT-DOWN
During manual mode driving, is downshift from M5 → M4 → M3 → M2 → M1 performed?
With CONSULT-III
Read the gear position. Refer to AT-84, "
CONSULT-III Function (TRANSMISSION)".
Is downshifting correctly performed?
YES >> GO TO 3.
NO >> Enter a check mark at “Vehicle Does No t Shift” at the corresponding position (5th → 4th, 4th →
3rd, 3rd → 2nd, 2nd → 1st) on the “Diagnostic Worksheet Chart”, then continue the road test.
3.CHECK ENGINE BRAKE
Check engine brake.
Does engine braking effectively reduce speed in M1 position?
YES - 1>> With CONSULT-III
1. Stop the vehicle.
2. Perform self-diagnostics.
YES - 2>> Without CONSULT-III
1. Stop the vehicle.
2. Perform self-diagnostics. Refer to AT-91, "
Diagnosis Procedure without CONSULT-III".
NO >> Enter a check mark at AT-202, "
Vehicle Does Not Decelerate by Engine Brake" on the “Diagnostic
Worksheet Chart”, then continue trouble diagnosis.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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INFINITI FX35 2008 Service Manual
AT-58
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
Vehicle Speed at Which Gear Shifting Occurs
INFOID:0000000001327159
2WD MODELS
At half throttle, the accelerator opening is 4/8 of the full opening.

AT-58
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
Vehicle Speed at Which Gear Shifting Occurs
INFOID:0000000001327159
2WD MODELS
At half throttle, the accelerator opening is 4/8 of the full opening.
AWD MODELS
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.
Vehicle Speed at Which Lock-up Occurs/ReleasesINFOID:0000000001327160
2WD MODELS
At closed throttle, the accelerator opening is less than 1/8 condition. (Closed throttle position signal: OFF)
At half throttle, the accelerator opening is 4/8 of the full opening.
AWD MODELS
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) 95 - 103
(59 - 64) 147 - 157
(92 - 98) 219 - 229
(137 - 143) 215 - 225
(134 - 141) 130 - 140
(81 - 88) 82 - 90
(51 - 56) 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)
Engine model VQ35DE
Throttle position Vehicle speed km/h (MPH)
Lock-up ON Lock-up OFF
Closed throttle 65 - 73 (4 0 - 45) 62 - 70 (39 - 43)
Half throttle 196 - 204 (122 - 127) 153 - 161 (95 - 100)
Engine model VQ35DE
Throttle position Vehicle speed km/h (MPH)
Lock-up ON Lock-up OFF
Closed throttle 59 - 67 (3 7 - 42) 56 - 64 (35 - 40)
Half throttle 178 - 186 (111 - 116) 139 - 147 (86 - 91)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

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INFINITI FX35 2008 Service Manual
TROUBLE DIAGNOSISAT-59
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P
At closed throttle, the accelerator opening is less than 1/8 condition. (Closed throttle position signal: OFF)
At ha

TROUBLE DIAGNOSISAT-59
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P
At closed throttle, the accelerator opening is less than 1/8 condition. (Closed throttle position signal: OFF)
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. (Closed throttle position signal: OFF)
At half throttle, the accelerator opening is 4/8 of the full opening.
Symptom ChartINFOID:0000000001327161
The diagnostics item numbers show the sequence for inspection. Check in order from item 1.
Overhaul and check inside the A/T only if A/T fluid condition is NG. Refer to AT-49, "
Inspections Before Trou-
ble Diagnosis".
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) 145 - 153 (90 - 95)
No. Items Symptom Condition Diagnostic Item Reference
page
1 Shift
Shock Large shock. (“N”
→
“D” position)
Refer to AT- 1 7 3 ,
"Large Shock ("N" to
"D" Position)". ON vehicle 1. Engine idle speed
EC-84
(for
VQ35DE)
or EC-661

(for
VK45DE)
2. Engine speed signal AT- 11 2
3. Accelerator pedal position sensorAT- 1 3 0
4. A/T positionAT- 2 0 7
5. A/T fluid temperature sensorAT- 1 3 2
6. Front brake solenoid valveAT- 1 4 5
7. CAN communication line AT- 9 4
8. A/T fluid level and stateAT- 4 9
9. Line pressure testAT- 4 9
10. Control valve with TCMAT- 2 1 5
OFF vehicle11. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
AT- 1 6 , "
Cross-
Sectional View (2WD Models)", AT- 1 7 , "Cross-Sectional View
(VQ35DE Models for AWD)" or AT- 1 8 , "Cross-Sectional View
(VK45DE Models for AWD)") AT- 2 6 7
2
Shock is too large
when changing D1
→
D
2 or M1 → M2. ON vehicle 1. Accelerator pedal position sensor
AT- 1 3 0
2. A/T positionAT- 2 0 7
3. Direct clutch solenoid valveAT- 1 4 7
4. CAN communication line AT- 9 4
5. Engine speed signalAT- 11 2
6. Turbine revolution sensorAT- 1 0 6
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 7
8. A/T fluid level and state AT- 4 9
9. Control valve with TCMAT- 2 1 5
OFF vehicle 10. Direct clutch AT- 3 0 3
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

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INFINITI FX35 2008 Service Manual
AT-60
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
3Shift
Shock Shock is too large
when changing D2
→
D
3 or M2 → M3. ON vehicle 1. Accelerator pedal position sensor
AT- 1 3 0
2. A/T positionA

Page 134 of 3924

INFINITI FX35 2008 Service Manual
TROUBLE DIAGNOSISAT-61
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P
6
Shift
Shock Shock is too large for
downshift when accel-
erator pedal is
pressed.
ON vehicle1. Accelerator pedal po

Page 135 of 3924

INFINITI FX35 2008 Service Manual
AT-62
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
9Shift
Shock Shock is too large dur-
ing engine brake. ON vehicle
1. Accelerator pedal position sensor
AT- 1 3 0
2. A/T positionAT- 2 0 7
3. CAN commu

AT-62
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
9Shift
Shock Shock is too large dur-
ing engine brake. ON vehicle
1. Accelerator pedal position sensor
AT- 1 3 0
2. A/T positionAT- 2 0 7
3. CAN communication line AT- 9 4
4. A/T fluid level and stateAT- 4 9
5. Control valve with TCMAT- 2 1 5
OFF vehicle6. Front brake (brake band)
AT- 2 4 97. Input clutch AT- 2 8 9
8. High and low reverse clutchAT- 3 0 1
9. Direct clutch AT- 3 0 3
10
No Up
Shift Gear does not change
from D
1 to D2 or from
M1to M2.
Refer to AT- 1 8 2 , "
A/T
Does Not Shift: D1→
D2". ON vehicle1. A/T fluid level and state
AT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 3 7
3. Direct clutch solenoid valveAT- 1 4 7
4. Line pressure test AT- 4 9
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle 7. Direct clutch AT- 3 0 3
11Gear does not change
from D
2 to D3 or from
M2 to M3.
Refer to AT- 1 8 4 , "
A/T
Does Not Shift: D2→
D3". ON vehicle1. A/T fluid level and state
AT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 7
3. High and low reverse clutch solenoid valve AT- 1 4 9
4. Line pressure test AT- 4 9
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle 7. High and low reverse clutch AT- 3 0 1
12Gear does not change
from D
3 to D4 or from
M3 to M4.
Refer to AT- 1 8 6 , "
A/T
Does Not Shift: D3→
D4". ON vehicle1. A/T fluid level and state
AT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 7
3. Input clutch solenoid valve AT- 1 4 3
4. Front brake solenoid valveAT- 1 4 5
5. Line pressure test AT- 4 9
6. CAN communication lineAT- 9 4
7. Control valve with TCMAT- 2 1 5
OFF vehicle 8. Input clutch AT- 2 8 9
13No Up
Shift Gear does not change
from D
4 to D5 or from
M4 to M5.
Refer to AT- 1 8 8 , "
A/T
Does Not Shift: D4→
D5". ON vehicle1. A/T fluid level and state
AT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 7
3. Front brake solenoid valve AT- 1 4 5
4. Direct clutch solenoid valveAT- 1 4 7
5. Turbine revolution sensorAT- 1 0 6
6. Line pressure test AT- 4 9
7. CAN communication lineAT- 9 4
8. Control valve with TCMAT- 2 1 5
OFF vehicle9. Front brake (brake band)
AT- 2 6 710. Input clutchAT- 2 8 9
No. Items Symptom Condition Diagnostic Item Reference
page
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

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INFINITI FX35 2008 Service Manual
TROUBLE DIAGNOSISAT-63
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P14
No Down
Shift In “D” or “M” position,
does not downshift to
4th gear.
ON vehicle1. A/T fluid level and stat

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