AT-3
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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
AT-44
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
DIAGNOSTIC WORKSHEET
Information from Customer
KEY POINTS
WHAT..... Vehicle & A/T model
WHEN..... Date, Frequencies
WHERE..... Road conditions
HOW..... Operating conditions, Symptoms
Diagnostic Worksheet Chart
Customer name MR/MS Model & Year VIN
Trans. Model Engine Mileage
Incident Date Manuf. Date In Service Date
Frequency❏ Continuous❏ Intermittent ( times a day)
Symptoms❏ Vehicle does not move. (❏ Any position❏ Particular position)
❏ No up-shift (❏ 1st → 2nd❏ 2nd → 3rd❏ 3rd → 4th ❏ 4th → 5th)
❏ No down-shift (❏ 5th → 4th ❏ 4th → 3rd❏ 3rd → 2nd❏ 2nd → 1st)
❏ Lock-up malfunction
❏ Shift point too high or too low.
❏ Shift shock or slip (❏ N → D❏ Lock-up❏ Any drive position)
❏ Noise or vibration
❏ No kick down
❏ No pattern select
❏ Others
()
A/T CHECK indicator lamp❏ Continuously lit❏ Not lit
Malfunction indicator lamp (MIL)❏ Continuously lit❏ Not lit
1❏ Read the item on cautions concerning fail-safe and understand the customer's complaint.AT- 4 0
2❏ A/T fluid inspectionAT- 4 9❏ Leak (Repair leak location.)
❏ State
❏ Amount
3❏ Stall test and line pressure testAT- 4 9
,
AT- 5 0
❏ Stall test
❏ Torque converter one-way clutch
❏ Front brake
❏ High and low reverse clutch
❏ Low coast brake
❏ Forward brake
❏ Reverse brake
❏ Forward one-way clutch❏ 1st one-way clutch
❏ 3rd one-way clutch
❏ Engine
❏ Line pressure low
❏ Except for input clutch and direct
clutch, clutches and brakes OK
❏ Line pressure inspection - Suspected part:
SHIFT CONTROL SYSTEM
AT-205
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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
SCIA5251E
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" .
SCIA7468E
A/T SHIFT LOCK SYSTEM
AT-207
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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
SCIA8127E
A/T SHIFT LOCK SYSTEM
AT-209
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Revision: 2006 November2007 350Z
Diagnostic ProcedureNCS0008Z
SYMPTOM 1:
Selector lever cannot be moved from “P” position with key in ON position and brake pedal
applied.
Selector lever can be moved from “P” position with key in ON position and brake pedal released.
Selector lever can be moved from “P” position when key is removed from key cylinder.
SYMPTOM 2:
Ignition key cannot be removed when selector lever is set to “P” position.
Ignition key can be removed when selector lever is set to any position except “P” position.
1. CHECK KEY INTERLOCK CABLE
Check the key interlock cable for damage.
OK or NG
OK >> GO TO 2.
NG >> Replace key interlock cable. Refer to AT- 2 1 2 , "
KEY INTERLOCK CABLE" .
2. CHECK SELECTOR LEVER POSITION
Check the selector lever position for damage. Refer to AT- 2 0 6 , "
Checking of A/T Position" .
OK or NG
OK >> GO TO 3.
NG >> Check selector lever. Refer to AT- 2 0 6 , "
Adjustment of A/T Position" .
3. CHECK POWER SOURCE
1. Turn ignition switch OFF.
2. Disconnect shift lock relay.
3. Check voltage between shift lock relay E19 terminal 2 and
ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.Vo l t a g e
Brake pedal depressed: Battery voltage
Brake pedal released: 0 V
SCIA6866E
AT-212
KEY INTERLOCK CABLE
Revision: 2006 November2007 350Z
KEY INTERLOCK CABLEPFP:34908
ComponentsNCS00090
CAUTION:
Install key interlock cable in such a way that it will not be damaged by sharp bends, twists or inter-
ference with adjacent parts.
After installing key interlock cable to control device, make sure that casing cap and bracket are
firmly secured in their positions. If casing cap be removed with an external load of less than 39.2 N
(4.0 kg, 8.8 lb), replace key interlock cable with new one.
SCIA1546E
KEY INTERLOCK CABLE
AT-213
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Revision: 2006 November2007 350Z
Removal and InstallationNCS00091
REMOVAL
1. Unlock slider by squeezing lock tabs on slider from adjuster
holder.
2. Remove casing cap from bracket of control device assembly
and remove interlock rod from adjuster holder.
3. Remove lock plate from key cylinder.
4. Remove holder from key cylinder and remove key interlock
cable.
SCIA1230E
SCIA1549E
AT-214
KEY INTERLOCK CABLE
Revision: 2006 November2007 350Z
INSTALLATION
1. Set holder of key interlock cable to key cylinder and install lock
plate.
CAUTION:
Do not reuse the lock plate
2. Clamp key interlock cable and fix to key interlock cable with
band.
3. Turn ignition key to lock position.
4. Set selector lever to “P” position.
5. Insert interlock rod into adjuster holder.
6. Install casing cap to bracket.
7. Move slider in order to fix adjuster holder to interlock rod.
CAUTION:
Do not touch any parts except slider. Do not add any force
to slider except force toward slider.
SCIA1549E
SCIA1232E