2005 INFINITI FX35 shift

AT-60
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
7. CHECK LOCK-UP HOLD
Check hold lock-up. With CONSULT-II
Select “TCC SOLENOID” with the “MAIN SIGNAL” mode for “A/T”. Refer to AT- 9 0 , "
CONSULT-II REFER-
ENCE VALUE" .
Does it maintain lock-up status?
YES >> GO TO 8.
NO >> Enter a check mark at “A/T Does Not Hold lock-up Condition” on the AT- 4 7 , "
DIAGNOSTIC
WORKSHEET" , then continue the road test.
8. CHECK LOCK-UP RELEASE
Check lock-up cancellation by depressing brake pedal lightly to decelerate. With CONSULT-II
Select “TCC SOLENOID” with the “MAIN SIGNAL” mode for A/T. Refer to AT- 9 0 , "
CONSULT-II REFERENCE
VA L U E" .
Does lock-up cancel?
YES >> GO TO 9.
NO >> Enter a check mark at “Lock-up Is Not Released” on the AT- 4 7 , "
DIAGNOSTIC WORKSHEET" ,
then continue the road test.
9. CHECK SHIFT-DOWN D5 → D4
Decelerate by pressing lightly on the brake pedal. With CONSULT-II
Read the gear position and engine speed. Refer to AT- 9 6 , "
DATA MONITOR MODE" .
When the A/T shift-down D5
→ D4, does the engine speed drop smoothly back to idle?
YES >> 1. Stop the vehicle. 2. Go to AT- 6 0 , "
Cruise Test - Part 2" .
NO >> Enter a check mark at “Engine Speed Does Not Return to Idle” on the AT- 4 7 , "
DIAGNOSTIC
WORKSHEET" , then continue the road test. Go to AT- 6 0 , "Cruise Test - Part 2" .
Cruise Test - Part 2ACS002M2
1. CHECK STARTING FROM D1
1. Move selector lever into “D” position.
2. Accelerate at half throttle.
With CONSULT-II
Read the gear position. Refer to AT- 9 6 , "
DATA MONITOR MODE" .
Does it start from D1?
YES >> GO TO 2.
NO >> Enter a check mark at “Vehicle Cannot Be Started from D1” on the AT- 4 7 , "
DIAGNOSTIC WORK-
SHEET" , then continue the road test.

TROUBLE DIAGNOSIS AT-61
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2005 July 2005 FX
2. CHECK SHIFT-UP D1 → D2
Press the accelerator pedal down all the way and check whether or not the transmission shifts up (D1 → D2)
at the correct speed.

Refer to AT- 6 2 , "Vehicle Speed at Which Gear Shifting Occurs" .
With CONSULT-II
Read the gear position, throttle position and vehicle speed. Refer to AT- 9 6 , "
DATA MONITOR MODE" .
Does the A/T shift-up D1
→ D2 at the correct speed?
YES >> GO TO 3.
NO >> Enter a check mark at “A/T Does Not Shift: D1 → D2” on the AT- 4 7 , "
DIAGNOSTIC WORK-
SHEET" , 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 transmission shifts up (D2 → D3)
at the correct speed.

Refer to AT- 6 2 , "Vehicle Speed at Which Gear Shifting Occurs" .
With CONSULT-II
Read the gear position, throttle position and vehicle speed. Refer to AT- 9 6 , "
DATA MONITOR MODE" .
Does the A/T shift-up D2
→ D3 at the correct speed?
YES >> GO TO 4.
NO >> Enter a check mark at “A/T Does Not Shift: D2 → D3” on the AT- 4 7 , "
DIAGNOSTIC WORK-
SHEET" , then continue the road test.
4. CHECK SHIFT-UP D3 → D4 AND ENGINE BRAKE
When the transmission changes speed D3 → D4, return the accelerator pedal.
With CONSULT-II
Read the gear position. Refer to AT- 9 6 , "
DATA MONITOR MODE" .
Does the A/T shift-up D3
→ D4 and apply the engine brake?
YES >> 1. Stop the vehicle.
2. Go to AT- 6 1 , "
Cruise Test - Part 3" .
NO >> Enter a check mark at “A/T Does Not Shift: D3 → D4” on the AT- 4 7 , "
DIAGNOSTIC WORK-
SHEET" , then continue the road test. Go to AT- 6 1 , "Cruise Test - Part 3" .
Cruise Test - Part 3ACS002M3
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 “Cannot Be Changed To Manual Mode” on the AT- 4 7 ,
"DIAGNOSTIC WORKSHEET" .
2. CHECK SHIFT-DOWN
During manual mode driving, is downshift from M5 → M4 → M3 → M2 → M1 performed?
With CONSULT-II
Read the gear position. Refer to AT- 9 6 , "
DATA MONITOR MODE" .
Is downshifting correctly performed?
YES >> GO TO 2.
NO >> Enter a check mark at “Vehicle Does Not Shift” at the corresponding position (5th → 4th, 4th →
3rd, 3rd → 2nd, 2nd → 1st) on the AT- 4 7 , "
DIAGNOSTIC WORKSHEET" , then continue the road
test.

AT-62
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
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 3 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 3 ,
"Diagnostic Procedure without CONSULT-II" .
NO >> Enter a check mark at “Vehicle Does Not Decelerate By Engine Brake” on the AT- 4 7 , "
DIAGNOS-
TIC WORKSHEET" , then continue trouble diagnosis.
Vehicle Speed at Which Gear Shifting OccursACS002M4
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 66 - 74
(41 - 46) 106 - 114
(66 - 71) 165 - 173
(103 - 108) 236 - 244
(147 - 152) 232 - 240
(144 - 149) 145- 153
(90 - 95) 89 - 97
(55 - 60) 41 - 49
(25 - 30)
Half throttle 52 - 60
(32 - 37) 83 - 91
(52 - 57) 127 - 135
(79 - 84) 159 - 167
(99 - 104) 104 - 112
(65 - 70) 75 - 83
(47 - 52) 34 - 42
(21 - 26) 9 - 17
(6 - 11)
Engine model VQ35DE
Throttle position Vehicle speed km/h (MPH)
D
1 → D2D2 → D3D3 → D4D4 → D5D5 → D4D4 → D3D3 → D2D2 → D1
Full throttle 60 - 68
(37 - 42) 96 - 104
(60 - 65) 150 - 158
(93 - 98) 214 - 222
(133 - 138) 210 - 218
(130 - 135) 132 - 140
(82 - 87) 81 - 89
(50 - 55) 37 - 45
(23 - 28)
Half throttle 47 - 55
(29 - 34) 75 - 83
(47 - 52) 115 - 123
(71 - 76) 144 - 152
(89 - 94) 95 - 103
(59 - 64) 68 - 76
(42 - 47) 31 - 39
(19 - 24) 9 - 17
(6 -11)
Engine model VK45DE
Throttle position Vehicle speed km/h (MPH)
D
1 → D2D2 → D3D3 → D4D4 → D5D5 → D4D4 → D3D3 → D2D2 → D1
Full throttle 62 - 70
(39 - 43) 98 - 106
(61 - 66) 153 - 161
(95 - 100) 220 - 228
(137 - 142) 216 - 224
(134 - 139) 137 - 145
(85 - 90) 85 - 93
(53 - 58) 39 - 47
(24 - 29)
Half throttle 29 - 37
(18 - 23) 59 - 67
(37 - 42) 101 - 109
(63 - 68) 161 - 169
(100 - 105) 108 - 116
(67 - 72) 66 - 74
(41 - 46) 38 - 46
(24 - 29) 22 - 30
(14 - 19)

AT-64
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
Symptom ChartACS0080Q

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- 5 2 , "A/T Fluid Condition
Check" .
No. Items Symptom Condition Diagnostic Item Reference
page
1 Shift
Shock Large shock. (“N”
→
“D” position)
Refer to AT-197,
"Large Shock (“N” to
“D” Position)" . ON vehicle 1. Engine idle speed
EC-83
(for
VQ35DE)
or EC-774

(for
VK45DE)
2. Engine speed signal AT- 1 2 3
3. Accelerator pedal position sensorAT- 1 3 3
4. Control linkage adjustmentAT- 2 3 5
5. A/T fluid temperature sensorAT- 1 3 6
6. ATF pressure switch 1 and front brake solenoid valve AT- 1 7 5,
AT- 1 5 4
7. CAN communication line AT- 1 0 6
8. A/T fluid level and state AT- 5 2
9. Line pressure testAT- 5 4
10. Control valve with TCMAT- 2 4 3
OFF vehicle 11. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-18, "Cross-Sectional View (2WD Models)" or AT- 1 9 , "Cross-
Sectional View (AWD Models)" ) AT- 2 9 0
2
Shock is too large
when changing D1 →
D
2 or M1 → M2 . ON vehicle 1. Accelerator pedal position sensor
AT- 1 3 3
2. Control linkage adjustmentAT- 2 3 5
3. ATF pressure switch 5 and direct clutch solenoid valve AT- 1 7 9,
AT- 1 5 8
4. CAN communication line AT- 1 0 6
5. Engine speed signalAT- 1 2 3
6. Turbine revolution sensorAT- 1 4 1
7. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT- 1 4 3
8. A/T fluid level and state AT- 5 2
9. Control valve with TCMAT- 2 4 3
OFF vehicle 10. Direct clutch AT- 3 2 6

TROUBLE DIAGNOSIS AT-65
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2005 July 2005 FX
3
Shift
Shock Shock is too large
when changing D2 →
D
3 or M2 → M3 . ON vehicle 1. Accelerator pedal position sensor
AT-133
2. Control linkage adjustmentAT-235
3. ATF pressure switch 6, high and low reverse clutch sole-
noid valve AT-181,
AT-162
4. CAN communication line AT-106
5. Engine speed signalAT-123
6. Turbine revolution sensorAT-141
7. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-143
8. A/T fluid level and state AT- 5 2
9. Control valve with TCMAT-243
OFF vehicle 10. High and low reverse clutch AT-323
4 Shock is too large
when changing D3 →
D
4 or M3 → M4 . ON vehicle 1. Accelerator pedal position sensor
AT-133
2. Control linkage adjustmentAT-235
3. ATF pressure switch 3 and input clutch solenoid valve AT-177,
AT-150
4. CAN communication line AT-106
5. Engine speed signalAT-123
6. Turbine revolution sensorAT-141
7. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-143
8. A/T fluid level and state AT- 5 2
9. Control valve with TCMAT-243
OFF vehicle 10. Input clutch AT-313
5 Shock is too large
when changing D4 →
D
5 or M4 → M5 . ON vehicle 1. Accelerator pedal position sensor
AT-133
2. Control linkage adjustmentAT-235
3. ATF pressure switch 1 and front brake solenoid valve AT-175,
AT-154

4. CAN communication line AT-106
5. Engine speed signalAT-123
6. Turbine revolution sensorAT-141
7. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-143
8. A/T fluid level and state AT- 5 2
9. Control valve with TCMAT-243
OFF vehicle 10. Front brake (brake band)
AT-27811. Input clutchAT-313
No. Items Symptom Condition Diagnostic Item Reference
page

AT-66
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
6
Shift
Shock Shock is too large for
downshift when accel-
erator pedal is
pressed. ON vehicle 1. Accelerator pedal position sensor
AT- 1 3 3
2. Control linkage adjustmentAT- 2 3 5
3. CAN communication lineAT- 1 0 6
4. Engine speed signalAT- 1 2 3
5. Turbine revolution sensorAT- 1 4 1
6. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT- 1 4 3
7. A/T fluid level and state AT- 5 2
8. Control valve with TCMAT- 2 4 3
OFF vehicle 9. Front brake (brake band)
AT- 2 7 810. Input clutch AT- 3 1 3
11. High and low reverse clutchAT- 3 2 3
12. Direct clutchAT- 3 2 6
7 Shock is too large for
upshift when acceler-
ator pedal is released. ON vehicle 1. Accelerator pedal position sensor
AT- 1 3 3
2. Control linkage adjustmentAT- 2 3 5
3. Engine speed signalAT- 1 2 3
4. CAN communication lineAT- 1 0 6
5. Turbine revolution sensorAT- 1 4 1
6. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT- 1 4 3
7. A/T fluid level and state AT- 5 2
8. Control valve with TCMAT- 2 4 3
OFF vehicle 9. Front brake (brake band)
AT- 2 7 810. Input clutch AT- 3 1 3
11. High and low reverse clutch AT- 3 2 3
12. Direct clutch AT- 3 2 6
8 Shock is too large for
lock-up. ON vehicle 1. Accelerator pedal position sensor
AT- 1 3 3
2. Control linkage adjustmentAT- 2 3 5
3. Engine speed signalAT- 1 2 3
4. CAN communication lineAT- 1 0 6
5. Turbine revolution sensorAT- 1 4 1
6. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT- 1 4 3
7. Torque converter clutch solenoid valve AT- 1 2 5
8. A/T fluid level and state AT- 5 2
9. Control valve with TCMAT- 2 4 3
OFF vehicle 10. Torque converter AT- 2 9 0
No. Items Symptom Condition Diagnostic Item Reference
page

TROUBLE DIAGNOSIS AT-67
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2005 July 2005 FX9 Shift
Shock Shock is too large
during engine brake. ON vehicle
1. Accelerator pedal position sensor
AT-133
2. Control linkage adjustmentAT-235
3. CAN communication lineAT-106
4. A/T fluid level and state AT- 5 2
5. Control valve with TCMAT-243
OFF vehicle 6. Front brake (brake band)
AT-2787. Input clutch AT-313
8. High and low reverse clutchAT-323
9. Direct clutch AT-326
10
No Up
Shift Gear does not change
from D
1 → D2 or from
M
1 → M2 .
Refer to AT-208, "
A/T
Does Not Shift: D1 →
D2" . ON vehicle 1. A/T fluid level and state
AT- 5 2
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-143
3. ATF pressure switch 5 and direct clutch solenoid valve AT-179,
AT-158
4. Line pressure test AT- 5 4
5. CAN communication lineAT-106
6. Control valve with TCMAT-243
OFF vehicle 7. Direct clutch AT-326
11 Gear does not change
from D
2 → D3 or from
M
2 → M3 .
Refer to AT-210, "
A/T
Does Not Shift: D2 →
D3" . ON vehicle 1. A/T fluid level and state
AT- 5 2
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-143
3. ATF pressure switch 6, high and low reverse clutch sole-
noid valve AT-181,
AT-162
4. Line pressure test AT- 5 4
5. CAN communication lineAT-106
6. Control valve with TCMAT-243
OFF vehicle 7. High and low reverse clutch AT-323
12 Gear does not change
from D
3 → D4 or from
M
3 → M4 .
Refer to AT-212, "
A/T
Does Not Shift: D3 →
D4" . ON vehicle 1. A/T fluid level and state
AT- 5 2
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-143
3. ATF pressure switch 3 and input clutch solenoid valve AT-177,
AT-150
4. ATF pressure switch 1 and front brake solenoid valve AT-175,
AT-154
5. Line pressure test AT- 5 4
6. CAN communication lineAT-106
7. Control valve with TCMAT-243
OFF vehicle 8. Input clutch AT-313
No. Items Symptom Condition Diagnostic Item Reference
page

AT-68
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
13 No Up
Shift Gear does not change
from D
4 → D5 or from
M
4 → M5 .
Refer to AT-215, "
A/T
Does Not Shift: D4 →
D5" . ON vehicle 1. A/T fluid level and state
AT- 5 2
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT- 1 4 3
3. ATF pressure switch 1 and front brake solenoid valve AT- 1 7 5,
AT- 1 5 4
4. ATF pressure switch 5 and direct clutch solenoid valve AT- 1 7 9,
AT- 1 5 8
5. Turbine revolution sensor AT- 1 4 1
6. Line pressure test AT- 5 4
7. CAN communication lineAT- 1 0 6
8. Control valve with TCMAT- 2 4 3
OFF vehicle 9. Front brake (brake band)
AT- 2 9 010. Input clutchAT- 3 1 3
14
No Down
Shift In “D” or “M” position,
does not downshift to
4th gear. ON vehicle 1. A/T fluid level and state
AT- 5 2
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT- 1 4 3

3. ATF pressure switch 1 and front brake solenoid valve AT- 1 7 5
,
AT- 1 5 4
4. ATF pressure switch 5 and direct clutch solenoid valve AT- 1 7 9,
AT- 1 5 8
5. CAN communication line AT- 1 0 6
6. Line pressure test AT- 5 4
7. Control valve with TCMAT- 2 4 3
OFF vehicle 8. Front brake (brake band)
AT- 2 9 09. Input clutchAT- 3 1 3
15 In “D” or “M” position,
does not downshift to
3rd gear. ON vehicle 1. A/T fluid level and state
AT- 5 2
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT- 1 4 3
3. ATF pressure switch 3 and input clutch solenoid valve AT- 1 7 7,
AT- 1 5 0
4. ATF pressure switch 1 and front brake solenoid valve AT- 1 7 5,
AT- 1 5 4
5. CAN communication line AT- 1 0 6
6. Line pressure test AT- 5 4
7. Control valve with TCMAT- 2 4 3
OFF vehicle 8. Input clutch AT- 3 1 3
No. Items Symptom Condition Diagnostic Item Reference
page