INFINITI FX35 2004 Service Manual

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-69
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45
13No Up
ShiftGear does not change
from D
4 → D5 or from
M
4 → M5 .
Refer to AT-213, "
A/T
Does Not Shift: D4 →
D5" .ON vehicle1. Fluid level and stateAT- 5 1
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT-145
3. ATF pressure switch 1 and front brake solenoid valveAT-178,
AT-156
4. ATF pressure switch 5 and direct clutch solenoid valveAT-182,
AT-160
5. Turbine revolution sensorAT-143
6. Line pressure testAT- 5 2
7. CAN communication lineAT-105
8. Control valve with TCMAT-242
OFF vehicle9. Front brake (brake band)AT-28610. Input clutchAT-308
14
No Down
ShiftIn D or M range, does
not downshift to 4th
gear.
Refer to AT-223, "A/T
Does Not Shift: 5th
gear → 4th gear" .ON vehicle1. Fluid level and stateAT- 5 1
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT-145

3. ATF pressure switch 1 and front brake solenoid valveAT-178
,
AT-156
4. ATF pressure switch 5 and direct clutch solenoid valveAT-182,
AT-160
5. CAN communication lineAT-105
6. Line pressure testAT- 5 2
7. Control valve with TCMAT-242
OFF vehicle8. Front brake (brake band)AT-2869. Input clutchAT-308
15In D or M range, does
not downshift to 3rd
gear.
Refer to AT-225, "A/T
Does Not Shift: 4th
gear → 3rd gear" .ON vehicle1. Fluid level and stateAT- 5 1
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT-145
3. ATF pressure switch 3 and input clutch solenoid valveAT-180,
AT-152
4. ATF pressure switch 1 and front brake solenoid valveAT-178,
AT-156
5. CAN communication lineAT-105
6. Line pressure testAT- 5 2
7. Control valve with TCMAT-242
OFF vehicle 8. Input clutchAT-308
No. Items Symptom Condition Diagnostic ItemReference
page

AT-70
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
16
No Down
ShiftIn D or M range, does
not downshift to 2nd
gear.
Refer to AT-227, "A/T
Does Not Shift: 3rd
gear → 2nd gear" .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. CAN communication lineAT- 1 0 5
5. Line pressure testAT- 5 2
6. Control valve with TCMAT- 2 4 2
OFF vehicle 7. High and low reverse clutchAT- 3 2 0
17In D or M range, does
not downshift to 1st
gear.
Refer to AT-229, "A/T
Does Not Shift: 2nd
gear → 1st gear" .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 vehicle 7. Direct clutchAT- 3 2 3
18Slips/Will
Not
engageWhen D or M position,
remains in 1st gear.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. Direct clutch solenoid valveAT- 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 vehicle7. 3rd one-way clutchAT- 3 0 6
8. 1st one-way clutchAT- 3 1 4
9. Gear systemAT- 2 7 4
10. Reverse brakeAT- 2 8 6
11. Forward one-way clutch (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- 2 8 6
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

TROUBLE DIAGNOSIS
AT-71
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45
19
Slips/Will
Not
engageWhen D or M position,
remains in 2nd gear.ON vehicle1. Fluid level and stateAT- 5 1
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT-145
3. Low coast brake solenoid valveAT-168
4. Line pressure testAT- 5 2
5. CAN communication lineAT-105
6. Control valve with TCMAT-242
OFF vehicle7. 3rd one-way clutchAT-306
8. Gear systemAT-274
9. Direct clutchAT-323
10. 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
20When D or M position,
remains in 3rd gear.ON vehicle1. Fluid level and stateAT- 5 1
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT-145
3. Line pressure testAT- 5 2
4. CAN communication lineAT-105
5. Control valve with TCMAT-242
OFF vehicle6. 3rd one-way clutchAT-306
7. Gear systemAT-274
8. High and low reverse clutchAT-320
9. 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
10. 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
No. Items Symptom Condition Diagnostic ItemReference
page

AT-72
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
21
Slips/Will
Not
engageWhen D or M position,
remains in 4th gear.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 5 and direct clutch solenoid valveAT- 1 8 2,
AT- 1 6 0
5. ATF pressure switch 6, high and low reverse clutch sole-
noid valveAT- 1 8 4,
AT- 1 6 4
6. Low coast brake solenoid valveAT- 1 6 8
7. Front brake solenoid valveAT- 1 5 6
8. Line pressure testAT- 5 2
9. CAN communication lineAT- 1 0 5
10. Control valve with TCMAT- 2 4 2
OFF vehicle11. Input clutchAT- 3 0 812. Gear systemAT- 2 7 4
13. High and low reverse clutchAT- 3 2 0
14. Direct clutchAT- 3 2 3
22When D or M position,
remains in 5th gear.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. Line pressure testAT- 5 2
5. CAN communication lineAT- 1 0 5
6. Control valve with TCMAT- 2 4 2
OFF vehicle7. Front brake (brake band)AT- 2 8 68. Input clutchAT- 3 0 8
9. Gear systemAT- 2 7 4
10. High and low reverse clutchAT- 3 2 0
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