oil change NISSAN 350Z 2007 Z33 Automatic Transmission Workshop Manual

AT-3
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 November2007 350Z Description ........................................................... 145
CONSULT-III Reference Value ............................. 145
On Board Diagnosis Logic ................................... 145
Possible Cause .................................................... 145
DTC Confirmation Procedure ............................... 145
Diagnostic Procedure ........................................... 146
DTC P1757 FRONT BRAKE SOLENOID VALVE .. 147
Description ........................................................... 147
CONSULT-III Reference Value ............................. 147
On Board Diagnosis Logic ................................... 147
Possible Cause .................................................... 147
DTC Confirmation Procedure ............................... 147
Diagnostic Procedure ........................................... 148
DTC P1762 DIRECT CLUTCH SOLENOID VALVE . 149
Description ........................................................... 149
CONSULT-III Reference Value ............................. 149
On Board Diagnosis Logic ................................... 149
Possible Cause .................................................... 149
DTC Confirmation Procedure ............................... 149
Diagnostic Procedure ........................................... 150
DTC P1767 HIGH AND LOW REVERSE CLUTCH
SOLENOID VALVE ................................................. 151
Description ........................................................... 151
CONSULT-III Reference Value ............................. 151
On Board Diagnosis Logic ................................... 151
Possible Cause .................................................... 151
DTC Confirmation Procedure ............................... 151
Diagnostic Procedure ........................................... 152
DTC P1772 LOW COAST BRAKE SOLENOID
VALVE ..................................................................... 153
Description ........................................................... 153
CONSULT-III Reference Value ............................. 153
On Board Diagnosis Logic ................................... 153
Possible Cause .................................................... 153
DTC Confirmation Procedure ............................... 153
Diagnostic Procedure ........................................... 154
DTC P1774 LOW COAST BRAKE SOLENOID
VALVE FUNCTION ................................................. 155
Description ........................................................... 155
CONSULT-III Reference Value ............................. 155
On Board Diagnosis Logic ................................... 155
Possible Cause .................................................... 155
DTC Confirmation Procedure ............................... 155
Diagnostic Procedure ........................................... 156
DTC P1815 MANUAL MODE SWITCH .................. 157
Description ........................................................... 157
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... 157
On Board Diagnosis Logic ................................... 157
Possible Cause .................................................... 157
DTC Confirmation Procedure ............................... 157
Wiring Diagram — AT — MMSW ......................... 158
Diagnostic Procedure ........................................... 160
Component Inspection ......................................... 161
MAIN POWER SUPPLY AND GROUND CIRCUIT . 162
Wiring Diagram — AT — MAIN ............................ 162
Diagnostic Procedure ........................................... 163
CLOSED THROTTLE POSITION AND WIDE OPEN
THROTTLE POSITION CIRCUIT ........................... 166CONSULT-III Reference Value .............................166
Diagnostic Procedure ...........................................166
BRAKE SIGNAL CIRCUIT ......................................167
CONSULT-III Reference Value .............................167
Diagnostic Procedure ...........................................167
A/T INDICATOR CIRCUIT .......................................168
Description ............................................................168
CONSULT-III Reference Value .............................168
Diagnostic Procedure ...........................................168
TROUBLE DIAGNOSIS FOR SYMPTOMS ............169
Wiring Diagram — AT — NONDTC ......................169
A/T Check Indicator Lamp Does Not Come On ....172
Engine Cannot Be Started in “P” or “N” Position ..173
In “P” Position, Vehicle Moves When Pushed ......173
In “N” Position, Vehicle Moves ..............................174
Large Shock (“N” to “D” Position) .........................175
Vehicle Does Not Creep Backward in “R” Position .177
Vehicle Does Not Creep Forward in “D” Position . 179
Vehicle Cannot Be Started from D
1 ......................181
A/T Does Not Shift: D
1 → D2 ................................183
A/T Does Not Shift: D
2 → D3 ................................185
A/T Does Not Shift: D
3 → D4 ................................187
A/T Does Not Shift: D
4 → D5 ................................189
A/T Does Not Lock-up ..........................................191
A/T Does Not Hold Lock-up Condition ..................193
Lock-up Is Not Released ......................................194
Engine Speed Does Not Return to Idle ................195
Cannot Be Changed to Manual Mode ..................196
A/T Does Not Shift: 5th Gear → 4th Gear ............196
A/T Does Not Shift: 4th Gear → 3rd Gear ............198
A/T Does Not Shift: 3rd Gear → 2nd Gear ...........199
A/T Does Not Shift: 2nd Gear → 1st Gear ...........201
Vehicle Does Not Decelerate by Engine Brake ....202
SHIFT CONTROL SYSTEM ....................................204
Control Device Removal and Installation ..............204
Control Rod Removal and Installation ..................205
Adjustment of A/T Position ...................................206
Checking of A/T Position ......................................206
A/T SHIFT LOCK SYSTEM ....................................207
Description ............................................................207
Shift Lock System Electrical Parts Location .........207
Wiring Diagram — AT — SHIFT ...........................208
Diagnostic Procedure ...........................................209
KEY INTERLOCK CABLE ......................................212
Components .........................................................212
Removal and Installation ......................................213
ON-VEHICLE SERVICE ..........................................215
Control Valve with TCM and A/T Fluid Temperature
Sensor 2 ...............................................................215
Parking Components ............................................227
Rear Oil Seal ........................................................234
Revolution Sensor ................................................235
AIR BREATHER HOSE ..........................................241
Removal and Installation ......................................241
TRANSMISSION ASSEMBLY ................................242
Removal and Installation ......................................242
OVERHAUL ............................................................246
Components .........................................................246

A/T CONTROL SYSTEM
AT-33
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Revision: 2006 November2007 350Z
NORMAL SHIFT CONTROL
The clutch is controlled with the optimum timing and oil pressure by the engine speed, engine torque informa-
tion, etc.
Shift Change System Diagram
*1: Full phase real-time feedback control monitors movement of gear ratio at gear change, and controls oil
pressure at real-time to achieve the best gear ratio.
BLIPPING CONTROL
This system makes transmission clutch engage readily by controlling (synchronizing) engine revolution
according to the (calculation of) engine revolution after shifting down.

“BLIPPING CONTROL” functions.
–When downshifting by accelerator pedal depression at “D” position.
–When downshifting under the manual mode.

TCM selects “BLIPPING CONTROL” or “NORMAL SHIFT CONTROL” according to the gear position, the
select lever position, the engine torque and the speed when accelerating by pedal depression.

Revolution control demand signal is transmitted from TCM to ECM under “BLIPPING CONTROL”.

TCM synchronizes engine revolution according to the revolution control demand signal.
PCIA0013E

AT-36
A/T CONTROL SYSTEM
Revision: 2006 November2007 350Z
FUNCTION OF ATF PRESSURE SWITCH
Accumulator control valveAdjusts the pressure (accumulator control pressure) acting on the accumulator piston
and low coast reducing valve to the pressure appropriate to the driving state.
Pilot valve AAdjusts the line pressure and produces the constant pressure (pilot pressure) required
for line pressure control, shift change control, and lock-up control.
Pilot valve BAdjusts the line pressure and produces the constant pressure (pilot pressure) required
for shift change control.
Low coast brake switching valve During engine braking, supplies the line pressure to the low coast brake reducing valve.
Low coast brake reducing valveWhen the low coast brake is coupled, adjusts the line pressure to the optimum pressure
(low coast brake pressure) and supplies it to the low coast brake.
N-R accumulator Produces the stabilizing pressure for when N-R is selected.
Direct clutch piston switching valve Operates in 4th gear and switches the direct clutch coupling capacity.
High and low reverse clutch control valveWhen the high and low reverse clutch is coupled, adjusts the line pressure to the opti-
mum pressure (high and low reverse clutch pressure) and supplies it to the high and low
reverse clutch. (In 1st, 3rd, 4th and 5th gears, adjusts the clutch pressure.)
Input clutch control valveWhen the input clutch is coupled, adjusts the line pressure to the optimum pressure
(input clutch pressure) and supplies it to the input clutch. (In 4th and 5th gears, adjusts
the clutch pressure.)
Direct clutch control valveWhen the direct clutch is coupled, adjusts the line pressure to the optimum pressure
(direct clutch pressure) and supplies it to the direct clutch. (In 2nd, 3rd, and 4th gears,
adjusts the clutch pressure.)
TCC control valve
TCC control plug
TCC control sleeveSwitches the lock-up to operating or released. Also, by performing the lock-up operation
transiently, lock-up smoothly.
Torque converter lubrication valveOperates during lock-up to switch the torque converter, cooling, and lubrication system
oil passage.
Cool bypass valve Allows excess oil to bypass cooler circuit without being fed into it.
Line pressure relief valve Discharges excess oil from line pressure circuit.
N-D accumulator Produces the stabilizing pressure for when N-D is selected.
Manual valveSends line pressure to each circuit according to the select position. The circuits to which
the line pressure is not sent drain. Name Function
Name Function
ATF pressure switch 2 (LC/B)Detects any malfunction in the low coast brake hydraulic pressure. When it detects any
malfunction, it puts the system into fail-safe mode.

TROUBLE DIAGNOSIS
AT-67
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Revision: 2006 November2007 350Z26
Slips/Will
Not
EngageLock-up is not
released.
Refer to AT-194,
"Lock-up Is Not
Released" .ON vehicle1. A/T fluid level and stateAT- 4 9
2. Line pressure testAT- 5 0
3. Engine speed signalAT- 11 3
4. Turbine revolution sensorAT-106
5. Torque converter clutch solenoid valveAT-125
6. CAN communication lineAT- 9 4
7. Control valve with TCMAT-215
OFF vehicle8. Torque converterAT-2559. Oil pump assemblyAT-271
27No shock at all or the
clutch slips when
vehicle changes
speed D
1 → D2 or
M
1 → M2 . 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 vehicle7. Torque converterAT-255
8. Oil pump assemblyAT-271
9. 3rd one-way clutchAT-274
10. Gear systemAT-246
11. Direct clutchAT-288
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-sectional View" .)AT-255
No. Items Symptom Condition Diagnostic ItemReference
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AT-68
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
28
Slips/Will
Not
EngageNo shock at all or the
clutch slips when
vehicle changes
speed D
2 → D3 or
M
2 → M3 .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. CAN communication lineAT- 9 4
5. Line pressure testAT- 5 0
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. Torque converterAT- 2 5 5
8. Oil pump assemblyAT- 2 7 1
9. 3rd one-way clutchAT- 2 7 4
10. Gear systemAT- 2 4 6
11. High and low reverse clutchAT- 2 8 6
12. 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
13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-sectional View" .)AT- 2 5 5
29No shock at all or the
clutch slips when
vehicle changes
speed D
3 → D4 or
M
3 → M4 .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. CAN communication lineAT- 9 4
6. Line pressure testAT- 5 0
7. Control valve with TCMAT- 2 1 5
OFF vehicle8. Torque converterAT- 2 5 5
9. Oil pump assemblyAT- 2 7 1
10. Input clutchAT- 2 7 6
11. Gear systemAT- 2 4 6
12. High and low reverse clutchAT- 2 8 6
13. Direct clutchAT- 2 8 8
No. Items Symptom Condition Diagnostic ItemReference
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TROUBLE DIAGNOSIS
AT-69
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Revision: 2006 November2007 350Z
30
Slips/Will
Not
EngageNo shock at all or the
clutch slips when
vehicle changes
speed D
4 → D5 or
M
4 → M5 .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. Torque converterAT-255
9. Oil pump assemblyAT-271
10. Front brake (brake band)AT-255
11. Input clutchAT-276
12. Gear systemAT-246
13. High and low reverse clutchAT-286
31When you press the
accelerator pedal and
shift speed D5 → D4
or M
5 → M4 the
engine idles or the A/
T slips.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. Torque converterAT-255
9. Oil pump assemblyAT-271
10. Input clutchAT-276
11. Gear systemAT-246
12. High and low reverse clutchAT-286
13. Direct clutchAT-288
No. Items Symptom Condition Diagnostic ItemReference
page

AT-76
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
45
Slips/Will
Not
EngageWith selector lever in
“D” position, driving is
not possible.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Line pressure testAT- 5 0
3. PNP switchAT- 1 0 2
4. A/T positionAT- 2 0 6
5. Control valve with TCMAT- 2 1 5
OFF vehicle6. Torque converterAT- 2 5 5
7. Oil pump assembly AT- 2 7 1
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
46With selector lever in
“R” position, driving is
not possible.ON vehicle1. A/T fluid level and stateAT- 4 9
2. Line pressure testAT- 5 0
3. PNP switchAT- 1 0 2
4. A/T positionAT- 2 0 6
5. Control valve with TCMAT- 2 1 5
OFF vehicle6. Gear systemAT- 2 4 67. Output shaftAT- 2 5 5
8. Reverse brakeAT- 2 5 5
47
Does Not
ChangeDoes not change M
5
→ M
4 .
Refer to AT-196, "
A/T
Does Not Shift: 5th
Gear → 4th Gear" .ON vehicle1. PNP switchAT- 1 0 2
2. A/T fluid level and stateAT- 4 9
3. A/T positionAT- 2 0 6
4. Manual mode switchAT- 1 5 7
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle 7. Front brake (brake band)AT- 2 5 5
48Does not change M
4
→ M
3 .
Refer to AT-198, "
A/T
Does Not Shift: 4th
Gear → 3rd Gear" .ON vehicle1. PNP switchAT- 1 0 2
2. A/T fluid level and stateAT- 4 9
3. A/T positionAT- 2 0 6
4. Manual mode switchAT- 1 5 7
5. CAN communication lineAT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. Front brake (brake band)AT- 2 5 58. Input clutchAT- 2 7 6
No. Items Symptom Condition Diagnostic ItemReference
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