torque INFINITI M35 2007 Factory Workshop Manual

AT-128
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
Revision: 2007 April2007 M35/M45
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)PFP:31940
DescriptionNCS001LX
This malfunction is detected when the A/T does not shift into 5th gear position or the torque converter clutch
does not lock-up as instructed by the TCM. This is not only caused by electrical malfunction (circuits open or
shorted) but also by mechanical malfunction such as control valve sticking, improper solenoid valve operation,
etc.
CONSULT-II Reference ValueNCS001LY
On Board Diagnosis LogicNCS001LZ

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0744 A/T TCC S/V FNCTN” with CONSULT-II or 3rd judgement flicker without
CONSULT-II is detected under the following conditions.
–When A/T cannot perform lock-up even if electrical circuit is good.
–When TCM detects as irregular by comparing difference value with slip rotation.
Possible CauseNCS001M0

Harness or connectors
(Solenoid circuit is open or shorted.)

Torque converter clutch solenoid valve

Hydraulic control circuit
DTC Confirmation ProcedureNCS001M1
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Start engine and Select “TCC SOL FUNCTN CHECK” of “DTC
WORK SUPPORT” mode for “A/T” with CONSULT-II and touch
“START”.
2. Accelerate vehicle to more than 80 km/h (50 MPH) and maintain
the following condition continuously until “TESTING” has turned
to “COMPLETE”. (It will take approximately 30 seconds after
“TESTING” shows.)
ACCELE POSI: More than 1.0/8 (at all times during step 4)
TCC SOLENOID: 0.4 - 0.6A
SLCT LVR POSI: “D” position
[Reference speed: Constant speed of more than 80 km/h (50
MPH)]
–Make sure “GEAR” shows “5”.
–For shift schedule, refer to AT- 3 7 1 , "Vehicle Speed at Which Lock-Up Occurs/Releases" .
–If “TESTING” does not appear on CONSULT-II for a long time, select “SELF-DIAG RESULTS”. In
case a 1st trip DTC other than P0744 is shown, refer to applicable “TROUBLE DIAGNOSIS FOR
DTC”.
3. Make sure that “OK” is displayed. (If “NG” is displayed, refer to AT- 1 2 9 , "
Diagnostic Procedure" .
Refer to shift schedule, AT- 3 7 1 , "
Vehicle Speed at Which Lock-Up Occurs/Releases" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value (Approx.)
TCC SOLENOID Lock-up is active 0.4 - 0.6 A
BCIA0030E

SHIFT CONTROL SYSTEM
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CONTROL ROD COMPONENTS (AWD MODELS)
Refer to the figure below for control rod removal and installation procedure.
Adjustment of A/T PositionNCS001QN
2WD MODELS
1. Loosen nut (2) of pivot pin (1).
2. Place PNP switch and selector lever in “P” position.
3. While pressing lower lever (3) toward rear of vehicle (in “P” posi-
tion direction), tighten nut (2) to specified torque.
Refer to AT- 2 2 6 , "
CONTROL ROD COMPONENTS (2WD
MODELS)" .
AWD MODELS
1. Loosen nut (2) of bracket (1).
2. Place PNP switch and selector lever in “P” position.
3. While pressing lower lever (3) toward rear of vehicle (in “P” posi-
tion direction), tighten nut (2) to specified torque.
Refer to AT- 2 2 7 , "
CONTROL ROD COMPONENTS (AWD
MODELS)" .
1. Control device assembly 2. A/T assembly 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-242
ON-VEHICLE SERVICE
Revision: 2007 April2007 M35/M45
6. Install A/T fluid temperature sensor 2 (with bracket) in control
valve with TCM. Tighten A/T fluid temperature sensor 2 bolt to
the specified torque. Refer to AT- 2 3 6 , "
COMPONENTS" .
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve with
TCM.
7. Install control valve with TCM in transmission case.
CAUTION:

Make sure that turbine revolution sensor securely installs
turbine revolution sensor hole.

Hang down revolution sensor harness toward outside so
as not to disturb installation of control valve with TCM.

Adjust A/T assembly harness connector of control valve
with TCM to terminal hole of transmission case.

Assemble it so that manual valve cutout is engaged with
manual plate projection.
8. Install bolts A, B and C in control valve with TCM.
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Bolt symbol Length mm (in) Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
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ON-VEHICLE SERVICE
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Revision: 2007 April2007 M35/M45
9. Tighten bolt 1, 2 and 3 temporarily to prevent dislocation. After
that tighten them in order (1 → 2 → 3), and then tighten other
bolts. Tighten control valve with TCM bolts to the specified
torque. Refer to AT- 2 3 6 , "
COMPONENTS" .
10. Connect A/T fluid temperature sensor 2 connector.
11. Securely fasten terminal cord assembly and A/T fluid tempera-
ture sensor 2 harness with terminal clips.
12. Connect revolution sensor connector.
13. Securely fasten revolution sensor harness with terminal clip.
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Revision: 2007 April2007 M35/M45
14. Install magnets in oil pan.
15. Install oil pan, oil pan gasket and clips (VQ35DE models) or oil pan, oil pan gasket, brackets and clips
(VK45DE models) according to the following procedures.
a. VQ35DE models
i. Install oil pan gasket to oil pan.
CAUTION:

Do not reuse oil pan gasket.

Install it in the direction to align hole positions.

Complete remove all moisture, oil and old gasket, etc. from oil pan gasket mounting surface.
ii. Install oil pan (2) (with oil pan gasket) and clips (1) to transmis-
sion case.
: Front
: Bolt (22)
CAUTION:

Install it so that drain plug comes to the position as
shown in the figure.

Be careful not to pinch harnesses.

Completely remove all moisture, oil and old gasket, etc.
from oil pan mounting surface.
iii. Tighten oil pan mounting bolts to the specified torque in numeri-
cal order shown in the figure after temporarily tightening them.
Tighten oil pan mounting bolts to the specified torque. Refer to
AT- 2 3 6 , "
COMPONENTS" .
CAUTION:
Do not reuse oil pan mounting bolts.
b. VK45DE models
i. Install oil pan gasket to oil pan.
CAUTION:

Do not reuse oil pan gasket.

Install it in the direction to align hole positions.

Complete remove all moisture, oil and old gasket, etc. from oil pan gasket mounting surface.
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ii. Install oil pan (3) (with oil pan gasket), clips (1) and brackets (2)
to transmission case.
: Front
: Bolt (22)
CAUTION:

Install it so that drain plug comes to the position as
shown in the figure.

Be careful not to pinch harnesses.

Completely remove all moisture, oil and old gasket, etc.
from oil pan mounting surface.

Be careful with installation direction of brackets (2).
iii. Tighten oil pan mounting bolts to the specified torque in numeri-
cal order shown in the figure after temporarily tightening them.
Tighten oil pan mounting bolts to the specified torque. Refer to
AT- 2 3 6 , "
COMPONENTS" .
CAUTION:
Do not reuse oil pan mounting bolts.
16. Install drain plug to oil pan. Tighten drain plug to the specified
torque. Refer to AT- 2 3 6 , "
COMPONENTS" .
CAUTION:
Do not reuse drain plug gasket.
17. Pull up A/T assembly harness connector.
CAUTION:
Be careful not to damage connector.
18. Install snap ring to A/T assembly harness connector.
19. Connect A/T assembly harness connector.
20. Connect heated oxygen sensor 2 harness connector.
21. Pour ATF into A/T assembly. Refer to AT- 1 2 , "
Changing A/T
Fluid" .
22. Connect the battery cable to the negative terminal.
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AT-248
ON-VEHICLE SERVICE
Revision: 2007 April2007 M35/M45
2. Install A/T fluid temperature sensor 2 (with bracket) in control
valve with TCM. Tighten A/T fluid temperature sensor 2 bolts to
the specified torque. Refer to AT- 2 3 6 , "
COMPONENTS" .
3. Connect A/T fluid temperature sensor 2 connector.
4. Securely fasten A/T fluid temperature sensor 2 harness with ter-
minal clip.
5. Install oil pan, oil pan gasket and clips (VQ35DE models) or oil pan, oil pan gasket, brackets and clips
(VK45DE models) according to the following procedures.
a. VQ35DE models
i. Install oil pan gasket to oil pan.
CAUTION:

Do not reuse oil pan gasket.

Install it in the direction to align hole positions.

Complete remove all moisture, oil and old gasket, etc. from oil pan gasket mounting surface.
ii. Install oil pan (2) (with oil pan gasket) and clips (1) to transmis-
sion case.
: Front
: Bolt (22)
CAUTION:

Install it so that drain plug comes to the position as
shown in the figure.

Be careful not to pinch harnesses.

Completely remove all moisture, oil and old gasket, etc.
from oil pan mounting surface.
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iii. Tighten oil pan mounting bolts to the specified torque in numeri-
cal order shown in the figure after temporarily tightening them.
Tighten oil pan mounting bolts to the specified torque. Refer to
AT- 2 3 6 , "
COMPONENTS" .
CAUTION:
Do not reuse oil pan mounting bolts.
b. VK45DE models
i. Install oil pan gasket to oil pan.
CAUTION:

Do not reuse oil pan gasket.

Install it in the direction to align hole positions.

Complete remove all moisture, oil and old gasket, etc. from oil pan gasket mounting surface.
ii. Install oil pan (3) (with oil pan gasket), clips (1) and brackets (2)
to transmission case.
: Front
: Bolt (22)
CAUTION:

Install it so that drain plug comes to the position as
shown in the figure.

Be careful not to pinch harnesses.

Completely remove all moisture, oil and old gasket, etc.
from oil pan mounting surface.

Be careful with installation direction of brackets (2).
iii. Tighten oil pan mounting bolts to the specified torque in numeri-
cal order shown in the figure after temporarily tightening them.
Tighten oil pan mounting bolts to the specified torque. Refer to
AT- 2 3 6 , "
COMPONENTS" .
CAUTION:
Do not reuse oil pan mounting bolts.
6. Install drain plug to oil pan. Tighten drain plug to the specified
torque. Refer to AT- 2 3 6 , "
COMPONENTS" .
CAUTION:
Do not reuse drain plug gasket.
7. Connect heated oxygen sensor 2 harness connector.
8. Pour ATF into A/T assembly. Refer to AT- 1 2 , "
Changing A/T Fluid" .
9. Connect the battery cable to the negative terminal.
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Revision: 2007 April2007 M35/M45
10. Apply recommended sealant (Genuine Anaerobic Liquid Gasket
or equivalent. Refer to GI-47, "
Recommended Chemical Prod-
ucts and Sealants" .) to rear extension assembly as shown in
the figure.
CAUTION:
Completely remove all moisture, oil and old sealant, etc.
from the transmission case and rear extension assembly
mounting surfaces.
11. Install rear extension assembly to transmission case. (With nee-
dle bearing.)
CAUTION:
Insert the tip of parking rod between the parking pawl and
the parking actuator support when assembling the rear
extension assembly.
12. Tighten rear extension assembly bolts to the specified torque.
Refer to AT- 2 5 0 , "
Components" .
CAUTION:
Do not reuse self-sealing bolts.
13. Install engine mounting insulator (rear). Refer to AT- 2 7 4 , "
Removal and Installation (2WD Models)" .
14. Install rear engine mounting member. Refer to AT- 2 7 4 , "
Removal and Installation (2WD Models)" .
15. Install control rod. Refer to AT- 2 2 6 , "
Control Rod Removal and Installation" .
16. Install rear propeller shaft. Refer to PR-8, "
Removal and Installation" .
17. Install exhaust front tube and center muffler. Refer to EX-5, "
Removal and Installation" .
18. Install drain plug to oil pan. Tighten a necessary drain plug with specified torque. Refer to AT- 2 3 6 , "
Control
Valve With TCM and A/T Fluid Temperature Sensor 2" .
CAUTION:
Do not reuse drain plug gasket.
19. Pour ATF into A/T assembly. Refer to AT- 1 2 , "
Changing A/T Fluid" .
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Revision: 2007 April2007 M35/M45
2. Install parking pawl (with return spring) (1) and pawl shaft (2) in
output shaft & companion flange complement.
3. Install parking actuator support (1) in output shaft & companion
flange complement.
4. Apply recommended sealant (Genuine Anaerobic Liquid Gasket
or equivalent. Refer to GI-47, "
Recommended Chemical Prod-
ucts and Sealants" .) to output shaft & companion flange com-
plement as shown in the figure.
CAUTION:
Completely remove all moisture, oil and old sealant, etc.
from the transmission case and output shaft & companion
flange complement mounting surfaces.
5. Install output shaft & companion flange complement to transmis-
sion case.
6. Tighten output shaft & companion flange complement bolts (1)
to the specified torque. Refer to AT- 2 5 7 , "
Components" .
: Bolt (10)
CAUTION:
Do not reuse self-sealing bolts (2).
Refer to GI section to make sure icons (symbol marks) in the fig-
ure. Refer to GI-11, "
Components" .
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