2007 NISSAN 350Z Automatic Transmission Workshop Manual

TROUBLE DIAGNOSIS FOR SYMPTOMS
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Revision: 2006 November2007 350Z
A/T Does Not Shift: 2nd Gear → 1st GearNCS0008Q
SYMPTOM:
When shifted from M2 to M1 position in manual mode, does not downshift from 2nd to 1st gear.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 8 6 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 9 2 , "Diagnostic Procedure
Without CONSULT-III" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT- 8 6 , "SELF-DIAGNOSTIC RESULT MODE" , AT- 9 3 ,
"Judgment Self-diagnosis Code" .
NO >> GO TO 2.
2. CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to AT- 1 2 , "
Checking A/T Fluid" .
OK or NG
OK >> GO TO 3.
NG >> Refill ATF.
3. CHECK A/T POSITION
Check A/T position. Refer to AT- 2 0 6 , "
Checking of A/T Position" .
OK or NG
OK >> GO TO 4.
NG >> Adjust A/T position. Refer to AT- 2 0 6 , "
Adjustment of A/T Position" .
4. MANUAL MODE SWITCH
Check manual mode switch. Refer to AT- 1 5 7 , "
DTC P1815 MANUAL MODE SWITCH" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT- 2 1 5 , "
Control Valve with TCM and A/T Fluid Temperature Sensor 2" .
2. Check A/T fluid condition. Refer to AT- 4 9 , "
A/T Fluid Condition Check" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 9.
6. DETECT MALFUNCTIONING ITEM
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT- 5 9 ,
"Symptom Chart" (Symptom No. 50).
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7. CHECK SYMPTOM
Check again. Refer to AT- 5 8 , "
Cruise Test — Part 3" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 8.

AT-202
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 November2007 350Z
8. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 8 3 , "
TCM Input/Output Signal Reference Values" .
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
9. DETECT MALFUNCTIONING ITEM
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT- 5 9 ,
"Symptom Chart" (Symptom No. 50).
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
Vehicle Does Not Decelerate by Engine BrakeNCS0008R
SYMPTOM:
No engine brake is applied when the gear is shifted from the 2nd to 1st gear.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 8 6 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 9 2 , "Diagnostic Procedure
Without CONSULT-III" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT- 8 6 , "SELF-DIAGNOSTIC RESULT MODE" , AT- 9 3 ,
"Judgment Self-diagnosis Code" .
NO >> GO TO 2.
2. CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to AT- 1 2 , "
Checking A/T Fluid" .
OK or NG
OK >> GO TO 3.
NG >> Refill ATF.
3. CHECK A/T POSITION
Check A/T position. Refer to AT- 2 0 6 , "
Checking of A/T Position" .
OK or NG
OK >> GO TO 4.
NG >> Adjust A/T position. Refer to AT- 2 0 6 , "
Adjustment of A/T Position" .
4. MANUAL MODE SWITCH
Check manual mode switch. Refer to AT- 1 5 7 , "
DTC P1815 MANUAL MODE SWITCH" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

TROUBLE DIAGNOSIS FOR SYMPTOMS
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5. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT- 2 1 5 , "
Control Valve with TCM and A/T Fluid Temperature Sensor 2" .
2. Check A/T fluid condition. Refer to AT- 4 9 , "
A/T Fluid Condition Check" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 9.
6. DETECT MALFUNCTIONING ITEM
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT- 5 9 ,
"Symptom Chart" (Symptom No. 58).
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7. CHECK SYMPTOM
Check again. Refer to AT- 5 8 , "
Cruise Test — Part 3" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 8.
8. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 8 3 , "
TCM Input/Output Signal Reference Values" .
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
9. DETECT MALFUNCTIONING ITEM
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT- 5 9 ,
"Symptom Chart" (Symptom No. 58).
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

AT-204
SHIFT CONTROL SYSTEM
Revision: 2006 November2007 350Z
SHIFT CONTROL SYSTEMPFP:34901
Control Device Removal and InstallationNCS0008S
1. Selector lever knob 2. Knob cover 3. Lock pin
4. Control device assembly 5. A/T device harness connector 6. Position indicator plate
7. Shift lock solenoid and park position
switch assembly8. Snap pin 9. Conical washer
10. Plain washer 11. Bracket 12. Control rod
13. Dust cover 14. Dust cover plate 15. Bulb case
16. Position lamp
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SHIFT CONTROL SYSTEM
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Revision: 2006 November2007 350Z
REMOVAL
CAUTION:
Make sure that parking brake is applied before removal/installation.
1. Disconnect lower lever of control device and control rod.
2. Remove knob cover below selector lever downward.
3. Pull lock pin out of selector lever knob.
4. Remove selector lever knob.
5. Remove console finisher (A/T ring) and console finisher (A/T).
Refer to IP-10, "
Component Parts Drawing" .
6. Remove center console. Refer to IP-10, "
Component Parts
Drawing" .
7. Remove key interlock cable from control device. Refer to AT-
213, "Removal and Installation" .
8. Disconnect A/T device harness connector.
9. Remove control device assembly.
CAUTION:
Do not impact, or damage propeller shaft tube.
INSTALLATION
Note the following, and install in the reverse order of removal.

After installation is completed, adjust and check A/T position. Refer to AT- 2 0 6 , "Adjustment of A/T Posi-
tion" , AT- 2 0 6 , "Checking of A/T Position" .
Control Rod Removal and InstallationNCS0008T
CONTROL ROD COMPONENTS
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1. Control device assembly 2. A/T 3. Manual lever
4. Control rod 5. Lower lever
Refer to GI section to make sure icons (symbol marks) in the figure. Refer to GI-11, "
Components" .
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AT-206
SHIFT CONTROL SYSTEM
Revision: 2006 November2007 350Z
REMOVAL
1. Disconnect lower lever of control device and control rod.
2. Remove manual lever from A/T.
3. Remove control rod from vehicle.
INSTALLATION
Note the following, and install in the reverse order of removal.

After installation is completed, adjust and check A/T position. Refer to AT- 2 0 6 , "Adjustment of A/T Posi-
tion" and AT- 2 0 6 , "Checking of A/T Position" .
Adjustment of A/T PositionNCS0008U
1. Loosen nut of control rod.
2. Place PNP switch and selector lever in “P” position.
3. While pressing lower lever toward rear of vehicle (in “P” position
direction), tighten nut to the specified torque. Refer toAT- 2 0 5 ,
"CONTROL ROD COMPONENTS"
Checking of A/T PositionNCS0008V
1. Place selector lever in “P” position, and turn ignition switch ON.
2. Make sure that selector lever can be shifted to other than “P” position when brake pedal is depressed.
Also make sure that selector lever can be shifted from “P” position only when brake pedal is depressed.
3. Move the selector lever and check for excessive effort, sticking, noise or rattle.
4. Confirm the selector lever stops at each position with the feel of engagement when it is moved through all
the positions. Check whether or not the actual position the selector lever is in matches the position shown
by the shift position indicator and the transmission body.
5. The method of operating the lever to individual positions cor-
rectly should be as shown in the figure.
6. When selector button is pressed in “P”, “R”, or “N” position with-
out applying forward/backward force to selector lever, check but-
ton operation for sticking.
7. Confirm the back-up lamps illuminate only when lever is placed
in the “R” position. Confirm the back-up lamps does not illumi-
nate when selector lever is pushed against “R” position in the
“P” or “N” position.
8. Confirm the engine can only be started with the selector lever in
the “P” and “N” positions. (With selector lever in the “P” position,
engine can be started even when selector lever is moved for-
ward and backward.)
9. Make sure that transmission is locked completely in “P” position.
10. When selector lever is set to manual shift gate, make sure that manual mode is displayed on combination
meter.
Shift selector lever to “+” and “-” sides, and check that set shift position changes.
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A/T SHIFT LOCK SYSTEM
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Revision: 2006 November2007 350Z
A/T SHIFT LOCK SYSTEMPFP:34950
DescriptionNCS0008W

The mechanical key interlock mechanism also operates as a shift lock:
With the ignition switch turned to ON, the selector lever cannot be shifted from “P” position to any other
position unless the brake pedal is depressed.
With the key removed, the selector lever cannot be shifted from “P” position to any other position.
The key cannot be removed unless the selector lever is placed in “P” position.

The shift lock and key interlock mechanisms are controlled by the ON-OFF operation of the shift lock sole-
noid and by the operation of the rotator and slider located inside the key cylinder.
Shift Lock System Electrical Parts LocationNCS001RP
1. A/T device harness connector 2. Key inter lock cable 3. Shift lock solenoid
4. Shift lock relay 5. Stop lamp switch 6. Brake pedal
A. Control device assembly B. Shift lock solenoid, revers side C. Park position switch
D. Fuse, fusible link and relay box E. Brake pedal, upper F. A/T console finisher
G. Shift lock release button
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AT-208
A/T SHIFT LOCK SYSTEM
Revision: 2006 November2007 350Z
Wiring Diagram — AT — SHIFTNCS0008Y
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