2007 INFINITI M35 B engine

TROUBLE DIAGNOSIS
AT-61
D
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MA
B
AT
Revision: 2007 April2007 M35/M45
Cruise Test - Part 2NCS001KB
1. CHECK STARTING FROM D1
1. Move selector lever to “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 AT- 1 9 9 , "
Vehicle Cannot Be Started from D1" on the AT- 4 8 , "DIAGNOSTIC
WORKSHEET" , then continue the road test.
2. CHECK SHIFT-UP D1 → D2
Press the accelerator pedal down all the way and inspect whether or not the A/T shifts up (D1 → D2) at the
correct speed. Refer to AT- 6 3 , "
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 AT- 2 0 1 , "
A/T Does Not Shift: D1 → D2" on the AT- 4 8 , "DIAGNOSTIC
WORKSHEET" , then continue the road test.
3. CHECK SHIFT-UP D2 → D3
Press the accelerator pedal down all the way and inspect whether or not the A/T shifts up (D2 → D3) at the
correct speed. Refer to AT- 6 3 , "
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 AT- 2 0 3 , "
A/T Does Not Shift: D2 → D3" on the AT- 4 8 , "DIAGNOSTIC
WORKSHEET" , then continue the road test.
4. CHECK SHIFT-UP D3 → D4 AND ENGINE BRAKE
When the A/T 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 AT- 2 0 5 , "
A/T Does Not Shift: D3 → D4" on the AT- 4 8 , "DIAGNOSTIC
WORKSHEET" , then continue the road test. Go to AT- 6 1 , "Cruise Test - Part 3" .
Cruise Test - Part 3NCS001KC
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- 2 1 3 , "
Cannot Be Changed to Manual Mode" on AT-
48, "DIAGNOSTIC WORKSHEET" .

AT-62
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
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 “A/T Does Not Shift” at the corresponding position (5th → 4th, 4th → 3rd,
3rd → 2nd, 2nd → 1st) on the AT- 4 8 , "
DIAGNOSTIC WORKSHEET" , then continue the road test.
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 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 3 ,
"Diagnostic Procedure without CONSULT-II" .
NO >> Enter a check mark at AT- 2 2 0 , "
Vehicle Does Not Decelerate by Engine Brake" on the AT- 4 8 ,
"DIAGNOSTIC WORKSHEET" , then continue trouble diagnosis.

TROUBLE DIAGNOSIS
AT-63
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Revision: 2007 April2007 M35/M45
Vehicle Speed at Which Gear Shifting OccursNCS001KD
2WD 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.
AWD MODELS

At half throttle, the accelerator opening is 4/8 of the full opening.
Vehicle Speed at Which Lock-Up Occurs/ReleasesNCS001KE
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.

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. Engine model VQ35DE
Throttle positionVehicle speed km/h (MPH)
D
1 →D2D2 →D3D3 →D4D4 →D5D5 →D4D4 →D3D3 →D2D2 →D1
Full throttle 52 - 56
(32 - 35)85 - 93
(53 - 58)126 - 136
(78 - 85)195 - 205
(121 - 127)191 - 201
(119 - 125)113- 123
(70 - 76)70 - 78
(44 - 48)28 - 32
(17 - 20)
Half throttle 42 - 46
(26 - 29)70 - 76
(44 - 47)107 - 115
(67 - 71)140 - 148
(87 - 92)111 - 11 9
(69 - 74)67 - 75
(42 - 47)35 - 41
(22 - 25)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 56 - 60
(35 - 37)89 - 97
(55 - 60)121 - 131
(75 - 81)206 - 216
(128 - 134)202 - 212
(126 - 132)121 - 131
(75 - 81)73 - 81
(45 - 50)30 - 34
(19 - 21)
Half throttle 48 - 52
(30 - 32)82 - 88
(51 - 55)126 - 134
(78 - 83)155 - 163
(96 - 101)128 - 136
(80 - 85)70 - 78
(43 - 48)29 - 35
(18 - 22)9 - 13
(6 - 8)
Engine model VQ35DE
Throttle positionVehicle speed km/h (MPH)
D
1 →D2D2 →D3D3 →D4D4 →D5D5 →D4D4 →D3D3 →D2D2 →D1
Full throttle 50 - 54
(31 - 34)81 - 89
(50 - 55)120 - 130
(75 - 81)187 - 197
(116 - 122)183 - 193
(114 - 120)108 - 118
(67 - 73)66 - 74
(41 - 46)27 - 31
(17 - 19)
Half throttle 40 - 44
(25 - 27)67 - 73
(42 - 45)102 - 110
(63 - 68)133 - 141
(83 - 88)106 - 114
(66 - 71)64 - 72
(40 - 45)33 - 39
(21 - 24)11 - 1 5
(7 - 9)
Engine model VQ35DE
Throttle positionVehicle speed km/h (MPH)
Lock-up ON Lock-up OFF
Closed throttle 53 - 61 (33 - 38) 50 - 58 (31 - 36)
Half throttle 196 - 204 (122 - 127) 138 - 146 (86 - 91)
Engine model VK45DE
Throttle positionVehicle speed km/h (MPH)
Lock-up ON Lock-up OFF
Closed throttle 67 - 75 (42 - 47) 50 - 58 (31 - 36)
Half throttle 181 - 189 (112 - 117) 160 - 168 (99 - 104)

AT-64
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
AW D M OD E LS

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 ChartNCS001KF

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 3 , "A/T Fluid Condi-
tion Check" .
Engine model VQ35DE
Throttle positionVehicle speed km/h (MPH)
Lock-up ON Lock-up OFF
Closed throttle 51 - 59 (32 - 37) 48 - 56 (30 - 35)
Half throttle 188 - 196 (117 - 122) 132 - 140 (82 - 87)
No. Item Symptom Condition Diagnostic ItemReference
page
1Shift
ShockLarge shock. (“N” →
“D” position)
Refer to AT-193,
"Large Shock (“N” to
“D” Position)" .ON vehicle1. Engine idle speedEC-83
(for
VQ35DE
engine),
EC-785

(for
VK45DE
engine)
2. Engine speed signalAT- 1 2 4
3. Accelerator pedal position sensorAT- 1 3 2
4. A/T positionAT- 2 2 7
5. A/T fluid temperature sensorAT- 1 3 5
6. ATF pressure switch 1 and front brake solenoid valveAT- 1 7 2,
AT- 1 5 1
7. CAN communication lineAT- 1 0 5
8. A/T fluid level and stateAT- 5 3
9. Line pressure testAT- 5 5
10. Control valve with TCMAT- 2 3 6
OFF vehicle11. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17, "Cross-Sectional View (VQ35DE Models for 2WD)" , AT-18,
"Cross-Sectional View (VK45DE Models for 2WD)" o r AT-19,
"Cross-Sectional View (AWD Models)" .)AT- 3 0 1

TROUBLE DIAGNOSIS
AT-65
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Revision: 2007 April2007 M35/M45
2
Shift
ShockShock is too large
when changing D1 →
D
2 or M1 → M2 .ON vehicle1. Accelerator pedal position sensorAT-132
2. A/T positionAT-227
3. ATF pressure switch 5 and direct clutch solenoid valveAT-176,
AT-155
4. CAN communication lineAT-105
5. Engine speed signalAT-124
6. Turbine revolution sensorAT- 11 7
7. Vehicle speed sensor·A/T and vehicle speed sensor·MTRAT- 11 9,
AT-140
8. A/T fluid level and stateAT- 5 3
9. Control valve with TCMAT-236
OFF vehicle 10. Direct clutchAT-341
3Shock is too large
when changing D2 →
D
3 or M2 → M3 .ON vehicle1. Accelerator pedal position sensorAT-132
2. A/T positionAT-227
3. ATF pressure switch 6, high and low reverse clutch sole-
noid valveAT-178,
AT-159
4. CAN communication lineAT-105
5. Engine speed signalAT-124
6. Turbine revolution sensorAT- 11 7
7. Vehicle speed sensor·A/T and vehicle speed sensor·MTRAT- 11 9,
AT-140
8. A/T fluid level and stateAT- 5 3
9. Control valve with TCMAT-236
OFF vehicle 10. High and low reverse clutchAT-339
4Shock is too large
when changing D3 →
D
4 or M3 → M4 .ON vehicle1. Accelerator pedal position sensorAT-132
2. A/T positionAT-227
3. ATF pressure switch 3 and input clutch solenoid valveAT-174,
AT-147
4. CAN communication lineAT-105
5. Engine speed signalAT-124
6. Turbine revolution sensorAT- 11 7
7. Vehicle speed sensor·A/T and vehicle speed sensor·MTRAT- 11 9,
AT-140
8. A/T fluid level and stateAT- 5 3
9. Control valve with TCMAT-236
OFF vehicle 10. Input clutchAT-327
No. Item Symptom Condition Diagnostic ItemReference
page

AT-66
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
5
Shift
ShockShock is too large
when changing D4 →
D
5 or M4 → M5 .ON vehicle1. Accelerator pedal position sensorAT- 1 3 2
2. A/T positionAT- 2 2 7
3. ATF pressure switch 1 and front brake solenoid valveAT- 1 7 2,
AT- 1 5 1

4. CAN communication lineAT- 1 0 5
5. Engine speed signalAT- 1 2 4
6. Turbine revolution sensorAT- 11 7
7. Vehicle speed sensor·A/T and vehicle speed sensor·MTRAT- 11 9,
AT- 1 4 0
8. A/T fluid level and stateAT- 5 3
9. Control valve with TCMAT- 2 3 6
OFF vehicle10. Front brake (brake band)AT- 3 0 111. Input clutchAT- 3 2 7
6Shock is too large for
downshift when accel-
erator pedal is
pressed.ON vehicle1. Accelerator pedal position sensorAT- 1 3 2
2. A/T positionAT- 2 2 7
3. CAN communication lineAT- 1 0 5
4. Engine speed signalAT- 1 2 4
5. Turbine revolution sensorAT- 11 7
6. Vehicle speed sensor·A/T and vehicle speed sensor·MTRAT- 11 9,
AT- 1 4 0
7. A/T fluid level and stateAT- 5 3
8. Control valve with TCMAT- 2 3 6
OFF vehicle9. Front brake (brake band)AT- 3 0 110. Input clutch AT- 3 2 7
11. High and low reverse clutchAT- 3 3 9
12. Direct clutchAT- 3 4 1
7Shock is too large for
upshift when acceler-
ator pedal is released.ON vehicle1. Accelerator pedal position sensorAT- 1 3 2
2. A/T positionAT- 2 2 7
3. Engine speed signalAT- 1 2 4
4. CAN communication lineAT- 1 0 5
5. Turbine revolution sensorAT- 11 7
6. Vehicle speed sensor·A/T and vehicle speed sensor·MTRAT- 11 9,
AT- 1 4 0
7. A/T fluid level and stateAT- 5 3
8. Control valve with TCMAT- 2 3 6
OFF vehicle9. Front brake (brake band)AT- 3 0 110. Input clutch AT- 3 2 7
11. High and low reverse clutch AT- 3 3 9
12. Direct clutch AT- 3 4 1
No. Item Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-67
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AT
Revision: 2007 April2007 M35/M45
8
Shift
ShockShock is too large for
lock-up.ON vehicle1. Accelerator pedal position sensorAT-132
2. A/T positionAT-227
3. Engine speed signalAT-124
4. CAN communication lineAT-105
5. Turbine revolution sensorAT- 11 7
6. Vehicle speed sensor·A/T and vehicle speed sensor·MTRAT- 11 9,
AT-140
7. Torque converter clutch solenoid valveAT-126
8. A/T fluid level and stateAT- 5 3
9. Control valve with TCMAT-236
OFF vehicle 10. Torque converterAT-301
9Shock is too large
during engine brake.ON vehicle1. Accelerator pedal position sensorAT-132
2. A/T positionAT-227
3. CAN communication lineAT-105
4. A/T fluid level and stateAT- 5 3
5. Control valve with TCMAT-236
OFF vehicle6. Front brake (brake band)AT-3017. Input clutch AT-327
8. High and low reverse clutchAT-339
9. Direct clutch AT-341
10
No Up
ShiftGear does not change
from D
1 → D2 or from
M
1 → M2 .
Refer to AT-201, "
A/T
Does Not Shift: D1 →
D2" .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensor·A/T and vehicle speed sensor·MTRAT- 11 9,
AT-140
3. ATF pressure switch 5 and direct clutch solenoid valveAT-176,
AT-155
4. Line pressure testAT- 5 5
5. CAN communication lineAT-105
6. Control valve with TCMAT-236
OFF vehicle 7. Direct clutchAT-341
11Gear does not change
from D
2 → D3 or from
M
2 → M3 .
Refer to AT-203, "
A/T
Does Not Shift: D2 →
D3" .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensor·A/T and vehicle speed sensor·MTRAT- 11 9,
AT-140
3. ATF pressure switch 6, high and low reverse clutch sole-
noid valveAT-178,
AT-159
4. Line pressure testAT- 5 5
5. CAN communication lineAT-105
6. Control valve with TCMAT-236
OFF vehicle 7. High and low reverse clutchAT-339
No. Item Symptom Condition Diagnostic ItemReference
page

AT-72
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
22
Slips/Will
Not
EngageWhen “D” or “M” posi-
tion, remains in 5th
gear.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensor·A/T and vehicle speed sensor·MTRAT- 11 9,
AT- 1 4 0

3. ATF pressure switch 1 and front brake solenoid valveAT- 1 7 2
,
AT- 1 5 1
4. Line pressure testAT- 5 5
5. CAN communication lineAT- 1 0 5
6. Control valve with TCMAT- 2 3 6
OFF vehicle7. Front brake (brake band)AT- 3 0 18. Input clutchAT- 3 2 7
9. Gear systemAT- 2 8 1
10. High and low reverse clutchAT- 3 3 9
23Vehicle cannot be
started from D
1 .
Refer to AT-199,
"Vehicle Cannot Be
Started from D1" .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Accelerator pedal position sensorAT- 1 3 2
3. Line pressure testAT- 5 5
4. CAN communication lineAT- 1 0 5
5. Control valve with TCMAT- 2 3 6
OFF vehicle6. Torque converterAT- 3 0 1
7. Oil pump assemblyAT- 3 2 2
8. 3rd one-way clutchAT- 3 2 5
9. 1st one-way clutch AT- 3 3 3
10. Gear systemAT- 2 8 1
11. Reverse brakeAT- 3 0 1
12. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT-17, "
Cross-Sectional View (VQ35DE Models for 2WD)" ,
AT-18, "
Cross-Sectional View (VK45DE Models for 2WD)" or
AT-19, "
Cross-Sectional View (AWD Models)" .)AT- 3 0 1
13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-Sectional View (VQ35DE Models for 2WD)" , AT-18,
"Cross-Sectional View (VK45DE Models for 2WD)" o r AT-19,
"Cross-Sectional View (AWD Models)" .)AT- 3 0 1
24Does not lock-up.
Refer to AT-209, "A/T
Does Not Lock-up" .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Line pressure testAT- 5 5
3. Engine speed signalAT- 1 2 4
4. Turbine revolution sensorAT- 11 7
5. Torque converter clutch solenoid valveAT- 1 2 6
6. CAN communication lineAT- 1 0 5
7. Control valve with TCMAT- 2 3 6
OFF vehicle8. Torque converterAT- 3 0 19. Oil pump assemblyAT- 3 2 2
No. Item Symptom Condition Diagnostic ItemReference
page