2004 INFINITI FX35 Torque

AT-78
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
34
Slips/Will
Not
EngageWhen you press the
accelerator pedal and
shift speed D2 → D1
or M
2 → M1 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 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. 1st one-way clutchAT- 3 1 4
11. Gear systemAT- 2 7 4
12. Reverse brakeAT- 2 8 6
13. 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
14. 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
35With selector lever in
D position, accelera-
tion is extremely poor.ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. Accelerator pedal position sensorAT- 1 3 6
4. CAN communication lineAT- 1 0 5
5. PNP switchAT- 11 2
6. Control linkage adjustmentAT- 2 3 4
7. Control valve with TCMAT- 2 4 2
OFF vehicle8. Torque converterAT- 2 8 6
9. Oil pump assemblyAT- 3 0 3
10. 1st one-way clutchAT- 3 1 4
11. Gear systemAT- 2 7 4
12. Reverse brakeAT- 2 8 6
13. 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
14. 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-79
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45
36
Slips/Will
Not
EngageWith selector lever in
R position, accelera-
tion is extremely poor.ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. Accelerator pedal position sensorAT-136
4. ATF pressure switch 6, high and low reverse clutch sole-
noid valveAT-184,
AT-164
5. CAN communication lineAT-105
6. PNP switchAT- 11 2
7. Control linkage adjustmentAT-234
8. Control valve with TCMAT-242
OFF vehicle9. Gear systemAT-27410. Output shaft AT-286
11. Reverse brakeAT-286
37While starting off by
accelerating in 1st,
engine races or slip-
page occurs.ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. Accelerator pedal position sensorAT-136
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 clutchAT-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
No. Items Symptom Condition Diagnostic ItemReference
page

AT-80
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
38
Slips/Will
Not
EngageWhile accelerating in
2nd, engine races or
slippage occurs.ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. Accelerator pedal position sensorAT- 1 3 6
4. CAN communication lineAT- 1 0 5
5. ATF pressure switch 5 and direct clutch solenoid valveAT- 1 8 2,
AT- 1 6 0
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
39While accelerating in
3rd, engine races or
slippage occurs.ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. Accelerator pedal position sensorAT- 1 3 6
4. CAN communication lineAT- 1 0 5
5. ATF pressure switch 6, high and low reverse clutch sole-
noid valveAT- 1 8 4,
AT- 1 6 4

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. High and low reverse clutchAT- 3 2 0
12. 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
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- 1 8 , "Cross-
Sectional View (AWD Models)" )AT- 2 8 6
No. Items Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-81
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45
40
Slips/Will
Not
EngageWhile accelerating in
4th, engine races or
slippage occurs.ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. Accelerator pedal position sensorAT-136
4. CAN communication lineAT-105
5. ATF pressure switch 3 and input clutch solenoid valveAT-180,
AT-152
6. Control valve with TCMAT-242
OFF vehicle7. Torque converterAT-286
8. Oil pump assemblyAT-303
9. Input clutchAT-308
10. Gear systemAT-274
11. High and low reverse clutchAT-320
12. Direct clutchAT-323
41 While accelerating in
5th, engine races or
slippage occurs.ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. Accelerator pedal position sensorAT-136
4. CAN communication lineAT-105
5. ATF pressure switch 1 and front brake solenoid valveAT-178,
AT-156
6. Control valve with TCMAT-242
OFF vehicle7. Torque converterAT-286
8. Oil pump assembly AT-303
9. Front brake (brake band)AT-286
10. Input clutchAT-308
11. Gear systemAT-274
12. High and low reverse clutchAT-320
42 Slips at 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
No. Items Symptom Condition Diagnostic ItemReference
page

AT-82
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
43
Slips/Will
Not
EngageNo creep at all.
Refer to AT-198,
"Vehicle Does Not
Creep Backward In
“R” Position" , AT-201,
"Vehicle Does Not
Creep Forward In “D”
Position"
ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. Accelerator pedal position sensorAT- 1 3 6
4. ATF pressure switch 5 and direct clutch solenoid valveAT- 1 8 2,
AT- 1 6 0
5. PNP switchAT- 11 2
6. CAN communication lineAT- 1 0 5
7. Control linkage adjustmentAT- 2 3 4
8. Control valve with TCMAT- 2 4 2
OFF vehicle9. Torque converterAT- 2 8 6
10. Oil pump assemblyAT- 3 0 3
11. 1st one-way clutchAT- 3 1 4
12. Gear systemAT- 2 7 4
13. Reverse brakeAT- 2 8 6
14. Direct clutchAT- 3 2 3
15. 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
16. 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
44Vehicle cannot run in
all positions.ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. PNP switchAT- 11 2
4. Control linkage adjustmentAT- 2 3 4
5. Control valve with TCMAT- 2 4 2
OFF vehicle6. Oil pump assemblyAT- 3 0 37. Gear systemAT- 2 7 4
8. Output shaftAT- 2 8 6
No. Items Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-83
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45
45
Slips/Will
Not
EngageWith selector lever in
D position, driving is
not possible.ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. PNP switchAT- 11 2
4. Control linkage adjustmentAT-234
5. Control valve with TCMAT-242
OFF vehicle6. Torque converterAT-286
7. Oil pump assemblyAT-303
8. 1st one-way clutchAT-314
9. Gear systemAT-274
10. Reverse brakeAT-286
11. 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
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-18, "Cross-
Sectional View (AWD Models)" )AT-286
46With selector lever in
R position, driving is
not possible.ON vehicle1. Fluid level and stateAT- 5 1
2. Line pressure testAT- 5 2
3. PNP switchAT- 11 2
4. Control linkage adjustmentAT-234
5. Control valve with TCMAT-242
OFF vehicle6. Gear systemAT-2747. Output shaftAT-286
8. Reverse brakeAT-286
47Does Not
ChangeDoes not change M5
→ M
4 .ON vehicle1. PNP switchAT- 11 2
2. Fluid level and stateAT- 5 1
3. Control linkage adjustmentAT-234
4. Manual mode switchAT-172
5. ATF pressure switch 1AT-178
6. CAN communication lineAT-105
7. Control valve with TCMAT-242
OFF vehicle 8. Front brake (brake band)AT-286
No. Items Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-85
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45
53
OthersShift point is low in D
position.ON vehicle1. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6
,
AT-145
2. Accelerator pedal position sensorAT-136
3. CAN communication lineAT-105
4. Control valve with TCMAT-242
54Judder occurs during
lock-up.ON vehicle1. Fluid level and stateAT- 5 1
2. Engine speed signalAT-121
3. Turbine revolution sensorAT-143
4. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 11 6,
AT-145
5. Accelerator pedal position sensorAT-136
6. CAN communication lineAT-105
7. Torque converter clutch solenoid valveAT-123
8. Control valve with TCMAT-242
OFF vehicle 9. Torque converterAT-286
55Strange noise in R
position.ON vehicle1. Fluid level and stateAT- 5 1
2. Engine speed signalAT-121
3. CAN communication lineAT-105
4. Control valve with TCMAT-242
OFF vehicle5. Torque converterAT-286
6. Oil pump assemblyAT-303
7. Gear systemAT-274
8. High and low reverse clutchAT-320
9. Reverse brakeAT-286
56Strange noise in N
position.ON vehicle1. Fluid level and stateAT- 5 1
2. Engine speed signalAT-121
3. CAN communication lineAT-105
4. Control valve with TCMAT-242
OFF vehicle5. Torque converterAT-2866. Oil pump assemblyAT-303
7. Gear systemAT-274
No. Items Symptom Condition Diagnostic ItemReference
page

AT-86
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
57
OthersStrange noise in D
position.ON vehicle1. Fluid level and stateAT- 5 1
2. Engine speed signalAT- 1 2 1
3. CAN communication lineAT- 1 0 5
4. Control valve with TCMAT- 2 4 2
OFF vehicle5. Torque converterAT- 2 8 6
6. Oil pump assemblyAT- 3 0 3
7. Gear systemAT- 2 7 4
8. 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
58Vehicle dose not
decelerate by engine
brake.
Refer to AT-231,
"Vehicle Does Not
Decelerate By Engine
Brake" .ON vehicle1. PNP switchAT- 11 2
2. Fluid level and stateAT- 5 1
3. Control linkage adjustmentAT- 2 3 4
4. Manual mode switchAT- 1 7 2
5. ATF pressure switch 5AT- 1 8 2
6. CAN communication lineAT- 1 0 5
7. Control valve with TCMAT- 2 4 2
OFF vehicle8. Input clutchAT- 3 0 89. High and low reverse clutchAT- 3 2 0
10. Direct clutchAT- 3 2 3
59Engine brake does
not work M5 → M4 .ON vehicle1. PNP switchAT- 11 2
2. Fluid level and stateAT- 5 1
3. Control linkage adjustmentAT- 2 3 4
4. Manual mode switchAT- 1 7 2
5. ATF pressure switch 1AT- 1 7 8
6. CAN communication lineAT- 1 0 5
7. Control valve with TCMAT- 2 4 2
OFF vehicle 8. Front brake (brake band) AT- 2 8 6
60Engine brake does
not work M4 → M3 .ON vehicle1. PNP switchAT- 11 2
2. Fluid level and stateAT- 5 1
3. Control linkage adjustmentAT- 2 3 4
4. Manual mode switchAT- 1 7 2
5. ATF pressure switch 1 and ATF pressure switch 3AT- 1 7 8,
AT- 1 8 0
6. CAN communication lineAT- 1 0 5
7. Control valve with TCMAT- 2 4 2
OFF vehicle8. Front brake (brake band)AT- 2 8 69. Input clutchAT- 3 0 8
No. Items Symptom Condition Diagnostic ItemReference
page