2007 NISSAN 350Z cruise control

AT-1
AUTOMATIC TRANSMISSION
C TRANSMISSION/TRANSAXLE
CONTENTS
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SECTION AT
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AT
Revision: 2006 November2007 350Z
AUTOMATIC TRANSMISSION
INDEX FOR DTC ........................................................ 5
Alphabetical Index .................................................... 5
DTC No. Index ......................................................... 6
PRECAUTIONS .......................................................... 7
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 7
Precautions for Battery Service ................................ 7
Precautions for On Board Diagnostic (OBD) System
of A/T and Engine .................................................... 7
Precautions .............................................................. 8
Service Notice or Precautions .................................. 9
PREPARATION ......................................................... 10
Special Service Tools ............................................. 10
Commercial Service Tools ....................................... 11
A/T FLUID ................................................................. 12
Changing A/T Fluid ................................................ 12
Checking A/T Fluid ................................................. 12
A/T Fluid Cooler Cleaning ...................................... 14
A/T CONTROL SYSTEM .......................................... 17
Cross-sectional View .............................................. 17
Shift Mechanism ..................................................... 18
TCM Function ......................................................... 29
CAN Communication .............................................. 30
Input/Output Signal of TCM .................................... 30
Line Pressure Control ............................................ 31
Shift Control ........................................................... 32
Lock-up Control ...................................................... 34
Engine Brake Control ............................................. 35
Control Valve .......................................................... 35
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 37
Introduction ............................................................ 37
OBD-II Function for A/T System ............................. 37
One or Two Trip Detection Logic of OBD-II ............ 37
OBD-II Diagnostic Trouble Code (DTC) ................. 37
Malfunction Indicator Lamp (MIL) ........................... 39
TROUBLE DIAGNOSIS ............................................ 40
DTC Inspection Priority Chart ................................ 40
Fail-safe ................................................................. 40
How to Perform Trouble Diagnosis for Quick and Accurate Repair ...................................................... 42
A/T Electrical Parts Location .................................. 47
Circuit Diagram ....................................................... 48
Inspections Before Trouble Diagnosis .................... 49
Check Before Engine is Started .............................. 53
Check at Idle ........................................................... 53
Cruise Test — Part 1 .............................................. 55
Cruise Test — Part 2 .............................................. 57
Cruise Test — Part 3 .............................................. 58
Vehicle Speed at When Gears Shifting Occurs ...... 58
Vehicle Speed at Which Lock-up Occurs/Releases ... 58
Symptom Chart ....................................................... 59
TCM Input/Output Signal Reference Values ........... 83
CONSULT-III Function (TRANSMISSION) ............. 84
Diagnostic Procedure Without CONSULT-III .......... 92
DTC U1000 CAN COMMUNICATION LINE .............. 94
Description .............................................................. 94
On Board Diagnosis Logic ...................................... 94
Possible Cause ....................................................... 94
DTC Confirmation Procedure ................................. 94
Wiring Diagram — AT — CAN ................................ 95
Diagnostic Procedure ............................................. 96
DTC P0615 START SIGNAL CIRCUIT ..................... 97
Description .............................................................. 97
CONSULT-III Reference Value ............................... 97
On Board Diagnosis Logic ...................................... 97
Possible Cause ....................................................... 97
DTC Confirmation Procedure ................................. 97
Wiring Diagram — AT — STSIG ............................ 98
Diagnostic Procedure ............................................. 99
DTC P0700 TCM .....................................................101
Description ............................................................101
On Board Diagnosis Logic ....................................101
Possible Cause .....................................................101
DTC Confirmation Procedure ...............................101
Diagnostic Procedure ...........................................101
DTC P0705 PARK/NEUTRAL POSITION SWITCH .102
Description ............................................................102
CONSULT-III Reference Value .............................102
On Board Diagnosis Logic ....................................102

TROUBLE DIAGNOSIS
AT-89
D
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MA
B
AT
Revision: 2006 November2007 350Z
SLCT LVR POSI — XSelector lever position is recognized by the TCM.
For fail-safe operation, the specific value used for
control is displayed.
OD CONT SW (ON/OFF) X —
Not mounted but displayed. POWERSHIFT SW (ON/OFF) X —
HOLD SW (ON/OFF) X —
MANU MODE SW (ON/OFF) X —
NON M-MODE SW (ON/OFF) X —
UP SW LEVER (ON/OFF) X —
DOWN SW LEVER (ON/OFF) X —
SFT UP ST SW (ON/OFF) — —
Not mounted but displayed.
SFT DWN ST SW (ON/OFF) — —
ASCD-OD CUT (ON/OFF) — —
ASCD-CRUISE (ON/OFF) — —
ABS SIGNAL (ON/OFF) — —
ACC OD CUT (ON/OFF) — —
Not mounted but displayed
ACC SIGNAL (ON/OFF) — —
TCS GR/P KEEP (ON/OFF) — —
TCS SIGNAL 2 (ON/OFF) — —
TCS SIGNAL 1 (ON/OFF) — —
TCC SOLENOID (A) — X
LINE PRES SOL (A) — X
I/C SOLENOID (A) — X
FR/B SOLENOID (A) — X
D/C SOLENOID (A) — X
HLR/C SOL (A) — X
ON OFF SOL (ON/OFF) — — LC/B solenoid
TCC SOL MON (A) — —
L/P SOL MON (A) — —
I/C SL MON (A) — —
FR/B SOL MON (A) — —
D/C SOL MON (A) — —
HLR/C SOL MON (A) — —
ON OFF SOL MON (ON/OFF) — — LC/B solenoid
P POSI IND (ON/OFF) — —
R POSI IND (ON/OFF) — —Monitored item (Unit)Monitor Item Selection
Remarks
ECU INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION FROM
MENU

AT-182
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 November2007 350Z
6. DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to AT- 2 1 5 , "
Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2" .
2. Disassemble A/T. Refer to AT- 2 5 5 , "
DISASSEMBLY" .
3. Check the following.
–Oil pump assembly. Refer to AT- 2 7 1 , "Oil Pump" .
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
7. DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to AT- 2 1 5 , "
Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2" .
2. Disassemble A/T. Refer to AT- 2 5 5 , "
DISASSEMBLY" .
3. Check the following.
–Oil pump assembly. Refer to AT- 2 7 1 , "Oil Pump" .
–Power train system. Refer to AT- 2 5 5 , "DISASSEMBLY" .
–Transmission case. Refer to AT- 2 5 5 , "DISASSEMBLY" .
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8. 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 9.
NG >> GO TO 12.
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. 23).
OK or NG
OK >> GO TO 10.
NG >> Repair or replace damaged parts.
10. CHECK SYMPTOM
Check again. Refer to AT- 5 5 , "
Cruise Test — Part 1" , AT- 5 7 , "Cruise Test — Part 2" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 11.
11 . 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.

AT-184
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 November2007 350Z
6. DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to AT- 2 1 5 , "
Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2" .
2. Disassemble A/T. Refer to AT- 2 5 5 , "
DISASSEMBLY" .
3. Check the following.
–Oil pump assembly. Refer to AT- 2 7 1 , "Oil Pump" .
–Power train system. Refer to AT- 2 5 5 , "DISASSEMBLY" .
–Transmission case. Refer to AT- 2 5 5 , "DISASSEMBLY" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7. 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 8.
NG >> GO TO 11.
8. 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. 10).
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
9. CHECK SYMPTOM
Check again. Refer to AT- 5 5 , "
Cruise Test — Part 1" , AT- 5 7 , "Cruise Test — Part 2" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 10.
10. 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.
11 . 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. 10).
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.

AT-186
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 November2007 350Z
6. DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to AT- 2 1 5 , "
Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2" .
2. Disassemble A/T. Refer to AT- 2 5 5 , "
DISASSEMBLY" .
3. Check the following.
–Oil pump assembly. Refer to AT- 2 7 1 , "Oil Pump" .
–Power train system. Refer to AT- 2 5 5 , "DISASSEMBLY" .
–Transmission case. Refer to AT- 2 5 5 , "DISASSEMBLY" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7. 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 8.
NG >> GO TO 11.
8. 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. 11).
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
9. CHECK SYMPTOM
Check again. Refer to AT- 5 5 , "
Cruise Test — Part 1" , AT- 5 7 , "Cruise Test — Part 2" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 10.
10. 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.
11 . 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. 11).
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.

AT-188
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 November2007 350Z
6. DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to AT- 2 1 5 , "
Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2" .
2. Disassemble A/T. Refer to AT- 2 5 5 , "
DISASSEMBLY" .
3. Check the following.
–Oil pump assembly. Refer to AT- 2 7 1 , "Oil Pump" .
–Power train system. Refer to AT- 2 5 5 , "DISASSEMBLY" .
–Transmission case. Refer to AT- 2 5 5 , "DISASSEMBLY" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7. 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 8.
NG >> GO TO 11.
8. 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. 12).
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
9. CHECK SYMPTOM
Check again. Refer to AT- 5 5 , "
Cruise Test — Part 1" , AT- 5 7 , "Cruise Test — Part 2" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 10.
10. 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.
11 . 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. 12).
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.

AT-190
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 November2007 350Z
6. DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to AT- 2 1 5 , "
Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2" .
2. Disassemble A/T. Refer to AT- 2 5 5 , "
DISASSEMBLY" .
3. Check the following.
–Oil pump assembly. Refer to AT- 2 7 1 , "Oil Pump" .
–Power train system. Refer to AT- 2 5 5 , "DISASSEMBLY" .
–Transmission case. Refer to AT- 2 5 5 , "DISASSEMBLY" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7. 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 8.
NG >> GO TO 11.
8. 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. 13).
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
9. CHECK SYMPTOM
Check again. Refer to AT- 5 5 , "
Cruise Test — Part 1" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 10.
10. 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.
11 . 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. 13).
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.

AT-192
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 November2007 350Z
6. 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 7.
NG >> GO TO 10.
7. 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. 24).
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8. CHECK SYMPTOM
Check again. Refer to AT- 5 5 , "
Cruise Test — Part 1" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 9.
9. 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.
10. 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. 24).
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.