2007 NISSAN 350Z Automatic Transmission Workshop Manual

TROUBLE DIAGNOSIS
AT-57
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 November2007 350Z
Cruise Test — Part 2NCS00028
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- 8 8 , "
DATA MONITOR MODE" .
Does it start from D1?
YES >> GO TO 2.
NO >> Enter a check mark at AT- 1 8 1 , "
Vehicle Cannot Be Started from D1" on the AT- 4 4 , "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- 5 8 , "
Vehicle Speed at When Gears Shifting Occurs" .
With CONSULT-III
Read the gear position, throttle position and vehicle speed. Refer to AT- 8 8 , "
DATA MONITOR MODE" .
Does the A/T shift-up D
1 → D2 at the correct speed?
YES >> GO TO 3.
NO >> Enter a check mark at AT- 1 8 3 , "
A/T Does Not Shift: D1 → D2" on the AT- 4 4 , "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- 5 8 , "
Vehicle Speed at When Gears Shifting Occurs" .
With CONSULT-III
Read the gear position, throttle position and vehicle speed. Refer to AT- 8 8 , "
DATA MONITOR MODE" .
Does the A/T shift-up D
2 → D3 at the correct speed?
YES >> GO TO 4.
NO >> Enter a check mark at AT- 1 8 5 , "
A/T Does Not Shift: D2 → D3" on the AT- 4 4 , "DIAGNOSTIC
WORKSHEET" , 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- 8 8 , "
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- 5 8 , "
Cruise Test — Part 3" .
NO >> Enter a check mark at AT- 1 8 7 , "
A/T Does Not Shift: D3 → D4" on the AT- 4 4 , "DIAGNOSTIC
WORKSHEET" , then continue the road test. Go to AT- 5 8 , "Cruise Test — Part 3" .

AT-58
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
Cruise Test — Part 3NCS00029
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- 1 9 6 , "
Cannot Be Changed to Manual Mode" on the
AT- 4 4 , "
DIAGNOSTIC WORKSHEET" .
2. CHECK SHIFT-DOWN
During manual mode driving, is downshift from M
5 → M4 → M3 → M2 → M1 performed?
With CONSULT-III
Read the gear position. Refer to AT- 8 8 , "
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 4 , "
DIAGNOSTIC WORKSHEET" , then continue the road test.
3. CHECK ENGINE BRAKE
Check engine brake.
Does engine braking effectively reduce speed in M
1 position?
YES >> 1. Stop the vehicle.
2. Perform self-diagnostics. Refer to AT- 8 6 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 9 2 ,
"Diagnostic Procedure Without CONSULT-III" .
NO >> Enter a check mark at AT- 2 0 2 , "
Vehicle Does Not Decelerate by Engine Brake" on the AT- 4 4 ,
"DIAGNOSTIC WORKSHEET" , then continue trouble diagnosis.
Vehicle Speed at When Gears Shifting OccursNCS0002A

At half throttle, the accelerator opening is 4/8 of the full opening.
Vehicle Speed at Which Lock-up Occurs/ReleasesNCS0002B

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.
Throttle positionVehicle speed km/h (MPH)
D1 →D2D2 →D3D3 →D4D4 →D5D5 →D4D4 →D3D3 →D2D2 →D1
Full throttle 50 – 54
(31 – 34)97 – 105
(60 – 65)154 – 164
(96 – 102)224 – 234
(139 – 145)220 – 230
(137 – 143)145 – 155
(90 – 96)86 – 94
(53 – 58)39 – 43
(24 – 27)
Half throttle 29 – 33
(18 – 21)63 – 69
(39 – 43)100 – 108
(62 – 67)136 – 144
(85 – 89)88 – 96
(55 – 60)64 – 72
(40 – 45)28 – 34
(17 – 21)9 – 13
(6 – 8)
Throttle positionVehicle speed km/h (MPH)
Lock-up ON Lock-up OFF
Closed throttle 62 – 70 (39 – 44) 59 – 67 (37 – 42)
Half throttle 136 – 144 (85 – 89) 88 – 96 (55 – 60)

TROUBLE DIAGNOSIS
AT-59
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 November2007 350Z
Symptom ChartNCS0002C

The diagnostics item numbers show the sequence for inspection. Inspect in order from item 1.

Overhaul and inspect inside the A/T only if A/T fluid condition is NG. Refer to AT- 4 9 , "A/T Fluid Con-
dition Check".
No. Items Symptom Condition Diagnostic ItemReference
page
1
Shift
ShockLarge shock. (“N” → “
D” position)
Refer to AT-175,
"Large Shock (“N” to
“D” Position)" .ON vehicle1. Engine idle speedEC-76
2. Engine speed signalAT- 11 3
3. Accelerator pedal position sensorAT-131
4. A/T positionAT-206
5. A/T fluid temperature sensorAT-134
6. Front brake solenoid valveAT-147
7. CAN communication lineAT- 9 4
8. A/T fluid level and stateAT- 4 9
9. Line pressure testAT- 5 0
10. Control valve with TCMAT-215
OFF vehicle11. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-sectional View" .)AT-255
2Shock is too large
when changing D1 →
D
2 or M1 → M2 .ON vehicle1. Accelerator pedal position sensorAT-131
2. A/T positionAT-206
3. Direct clutch solenoid valveAT-149
4. CAN communication lineAT- 9 4
5. Engine speed signalAT- 11 3
6. Turbine revolution sensorAT-106
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-108,
AT-139
8. A/T fluid level and stateAT- 4 9
9. Control valve with TCMAT-215
OFF vehicle 10. Direct clutchAT-288
3Shock is too large
when changing D2 →
D
3 or M2 → M3 .ON vehicle1. Accelerator pedal position sensorAT-131
2. A/T positionAT-206
3. High and low reverse clutch solenoid valveAT-151
4. CAN communication lineAT- 9 4
5. Engine speed signalAT- 11 3
6. Turbine revolution sensorAT-106
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-108,
AT-139
8. A/T fluid level and stateAT- 4 9
9. Control valve with TCMAT-215
OFF vehicle 10. High and low reverse clutchAT-286

AT-60
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
4
Shift
ShockShock is too large
when changing D3 →
D
4 or M3 → M4 .ON vehicle1. Accelerator pedal position sensorAT- 1 3 1
2. A/T positionAT- 2 0 6
3. Input clutch solenoid valveAT- 1 4 5
4. CAN communication lineAT- 9 4
5. Engine speed signalAT- 11 3
6. Turbine revolution sensorAT- 1 0 6
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
8. A/T fluid level and stateAT- 4 9
9. Control valve with TCMAT- 2 1 5
OFF vehicle 10. Input clutchAT- 2 7 6
5Shock is too large
when changing D4 →
D
5 or M4 → M5 .ON vehicle1. Accelerator pedal position sensorAT- 1 3 1
2. A/T positionAT- 2 0 6
3. Front brake solenoid valveAT- 1 4 7
4. CAN communication lineAT- 9 4
5. Engine speed signalAT- 11 3
6. Turbine revolution sensorAT- 1 0 6
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
8. A/T fluid level and stateAT- 4 9
9. Control valve with TCMAT- 2 1 5
OFF vehicle10. Front brake (brake band)AT- 2 5 511. Input clutchAT- 2 7 6
6Shock is too large for
downshift when accel-
erator pedal is
pressed.ON vehicle1. Accelerator pedal position sensorAT- 1 3 1
2. A/T positionAT- 2 0 6
3. CAN communication lineAT- 9 4
4. Engine speed signalAT- 11 3
5. Turbine revolution sensorAT- 1 0 6
6. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
7. A/T fluid level and stateAT- 4 9
8. Control valve with TCMAT- 2 1 5
OFF vehicle9. Front brake (brake band)AT- 2 5 510. Input clutchAT- 2 7 6
11. High and low reverse clutchAT- 2 8 6
12. Direct clutchAT- 2 8 8
No. Items Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-61
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 November2007 350Z
7
Shift
ShockShock is too large for
upshift when acceler-
ator pedal is released.ON vehicle1. Accelerator pedal position sensorAT-131
2. A/T positionAT-206
3. Engine speed signalAT- 11 3
4. CAN communication lineAT- 9 4
5. Turbine revolution sensorAT-106
6. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-108,
AT-139
7. A/T fluid level and stateAT- 4 9
8. Control valve with TCMAT-215
OFF vehicle9. Front brake (brake band)AT-25510. Input clutchAT-276
11. High and low reverse clutchAT-286
12. Direct clutchAT-288
8Shock is too large for
lock-up.ON vehicle1. Accelerator pedal position sensorAT-131
2. A/T positionAT-206
3. Engine speed signalAT- 11 3
4. CAN communication lineAT- 9 4
5. Turbine revolution sensorAT-106
6. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-108,
AT-139
7. Torque converter clutch solenoid valveAT-125
8. A/T fluid level and stateAT- 4 9
9. Control valve with TCMAT-215
OFF vehicle 10. Torque converterAT-255
9Shock is too large
during engine brake.ON vehicle1. Accelerator pedal position sensorAT-131
2. A/T positionAT-206
3. CAN communication lineAT- 9 4
4. A/T fluid level and stateAT- 4 9
5. Control valve with TCMAT-215
OFF vehicle6. Front brake (brake band)AT-2557. Input clutchAT-276
8. High and low reverse clutchAT-286
9. Direct clutchAT-288
No. Items Symptom Condition Diagnostic ItemReference
page

AT-62
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
10
No Up
ShiftGear does not change
from D
1 → D2 or from
M
1 → M2 .
Refer to AT-183, "
A/T
Does Not Shift: D1 →
D2" .ON vehicle1. A/T fluid level and stateAT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
3. Direct clutch solenoid valveAT- 1 4 9
4. Line pressure testAT- 5 0
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle 7. Direct clutchAT- 2 8 8
11Gear does not change
from D
2 → D3 or from
M
2 → M3 .
Refer to AT-185, "
A/T
Does Not Shift: D2 →
D3" .ON vehicle1. A/T fluid level and stateAT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
3. High and low reverse clutch solenoid valveAT- 1 5 1
4. Line pressure testAT- 5 0
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle 7. High and low reverse clutchAT- 2 8 6
12Gear does not change
from D
3 → D4 or from
M
3 → M4 .
Refer to AT-187, "
A/T
Does Not Shift: D3 →
D4" .ON vehicle1. A/T fluid level and stateAT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
3. Input clutch solenoid valveAT- 1 4 5
4. Front brake solenoid valveAT- 1 4 7
5. Line pressure testAT- 5 0
6. CAN communication lineAT- 9 4
7. Control valve with TCMAT- 2 1 5
OFF vehicle 8. Input clutchAT- 2 7 6
13Gear does not change
from D
4 → D5 or from
M
4 → M5 .
Refer to AT-189, "
A/T
Does Not Shift: D4 →
D5" .ON vehicle1. A/T fluid level and stateAT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
3. Front brake solenoid valveAT- 1 4 7
4. Direct clutch solenoid valveAT- 1 4 9
5. Turbine revolution sensorAT- 1 0 6
6. Line pressure testAT- 5 0
7. CAN communication lineAT- 9 4
8. Control valve with TCMAT- 2 1 5
OFF vehicle9. Front brake (brake band)AT- 2 5 510. Input clutchAT- 2 7 6
No. Items Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-63
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 November2007 350Z14
No Down
ShiftIn “D” or “M” position,
does not downshift to
4th gear.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-108,
AT-139

3. Front brake solenoid valveAT-147
4. Direct clutch solenoid valveAT-149
5. CAN communication lineAT- 9 4
6. Line pressure testAT- 5 0
7. Control valve with TCMAT-215
OFF vehicle8. Front brake (brake band)AT-2559. Input clutchAT-276
15In “D” or “M” position,
does not downshift to
3rd gear.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-108,
AT-139
3. Input clutch solenoid valveAT-145
4. Front brake solenoid valveAT-147
5. CAN communication lineAT- 9 4
6. Line pressure testAT- 5 0
7. Control valve with TCMAT-215
OFF vehicle 8. Input clutchAT-276
16In “D” or “M” position,
does not downshift to
2nd gear.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-108,
AT-139

3. High and low reverse clutch solenoid valveAT-151
4. CAN communication lineAT- 9 4
5. Line pressure testAT- 5 0
6. Control valve with TCMAT-215
OFF vehicle 7. High and low reverse clutchAT-286
17In “D” or “M” position,
does not downshift to
1st gear.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-108,
AT-139
3. Direct clutch solenoid valveAT-149
4. CAN communication lineAT- 9 4
5. Line pressure testAT- 5 0
6. Control valve with TCMAT-215
OFF vehicle 7. Direct clutchAT-288
No. Items Symptom Condition Diagnostic ItemReference
page

AT-64
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
18
Slips/Will
Not
EngageWhen “D” or “M” posi-
tion, remains in 1st
gear.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
3. Direct clutch solenoid valveAT- 1 4 9
4. Line pressure testAT- 5 0
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. 3rd one-way clutchAT- 2 7 4
8. 1st one-way clutchAT- 2 8 1
9. Gear systemAT- 2 4 6
10. Reverse brakeAT- 2 5 5
11. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT-17, "
Cross-sectional View" .)AT- 2 5 5
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-sectional View" .)AT- 2 5 5
19When “D” or “M” posi-
tion, remains in 2nd
gear.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 1 0 8 ,
AT- 1 3 9
3. Low coast brake solenoid valveAT- 1 5 3
4. Line pressure testAT- 5 0
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. 3rd one-way clutchAT- 2 7 4
8. Gear systemAT- 2 4 6
9. Direct clutchAT- 2 8 8
10. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-sectional View" .)AT- 2 5 5
20When “D” or “M” posi-
tion, remains in 3rd
gear.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 9
3. Line pressure testAT- 5 0
4. CAN communication lineAT- 9 4
5. Control valve with TCMAT- 2 1 5
OFF vehicle6. 3rd one-way clutchAT- 2 7 4
7. Gear systemAT- 2 4 6
8. High and low reverse clutchAT- 2 8 6
9. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT-17, "
Cross-sectional View" .)AT- 2 5 5
10. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-sectional View" .)AT- 2 5 5
No. Items Symptom Condition Diagnostic ItemReference
page