2011 INFINITI QX56 sensor

OUTPUT SPEED SENSORTM-197
< REMOVAL AND INSTALLATION > [7AT: RE7R01B]
C
EF
G H
I
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K L
M A
B
TM
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O P
12. Disconnect output speed sensor connector (A). CAUTION:
Be careful not to damage connector
13. Disengage terminal clips ( ).
14. Remove output speed sensor (1) from transmission case.
CAUTION:
 Never subject it to impact by dropping or hitting it.
 Never disassemble.
 Never allow metal filings, etc. to get on the sensor's frontedge magnetic area.
 Never place in an area affected by magnetism.
INSTALLATION
Note the following, and install in the reverse order removal.
CAUTION:
 Insert the tip of parking rod between the parkin g pole and the parking actuator support when assem-
bling the rear ext ension assembly.
 Never reuse drain plug gasket.
 Refer to the followings when installing output speed sensor.
CAUTION:
 Never subject it to impact by dropping or hitting it.
 Never disassemble.
 Never allow metal filings, etc. to get on the sensor's front edge magnetic area.
 Never place in an area affected by magnetism.
 Refer to the followings when installing rear extension assembly.
- Apply recommended sealant (Genuine Anaerobic Liquid Gasket or equivalent. Refer to GI-22, "
Recommended Chemical Products
and Sealants".) to rear extension assembly as shown in the figure.
CAUTION:
Completely remove all moisture, oil and old sealant, etc. from
transmission case and rear extension assembly mounting
surfaces.
JPDIA1104ZZ
: Bolt
JSDIA1885ZZ
Sealant starting
point and end-
point (A) : Start and finish point shall be in
the center of two bolts.
Overlap width of
sealant starting
point and end-
point (B) : 3 – 5 mm (0.12 – 0.20 in)
Sealant width (C) : 1.0 – 2.0 mm (0.04 – 0.08 in)
Sealant height (C) : 0.4 – 1.0 mm (0.016 – 0.04 in)
JSDIA1855ZZ
Revision: 2010 May2011 QX56

TM-198
< REMOVAL AND INSTALLATION >[7AT: RE7R01B]
OUTPUT SPEED SENSOR
- Tighten rear extension assembly bolts to the specified torque.
 Refer to the followings when installing oil pan (2) (with oil pan gas-
ket) and clips (1) to transmission case.
CAUTION:
 Never reuse oil pan gasket and oil pan mounting bolts.
 Install oil pan gasket in the di rection to align hole position.
 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 ol d gasket, etc. from oil pan mounting surface.
- Tighten oil pan mounting bolts to the specified torque in numerical
order shown in the figure after temporarily tightening them. Tighten
necessary oil pan mounting bolts with specified torque.
2WD : Inspection and AdjustmentINFOID:0000000006228121
INSPECTION AFTER REMOVAL
Check foreign materials in oil pan to help determine causes of mal-
function. If the ATF is very dark, smells burned, or contains foreign
particles, the frictional material (clutches, band) may need replace-
ment. A tacky film that will not wipe clean indicates varnish build up.
Varnish can cause valves, servo, and clutches to stick and can
inhibit pump pressure.
If frictional material is det ected, perform A/T fluid cooler
cleaning. Refer to TM-97, "
Cleaning".
INSPECTION AFTER INSTALLATION
Check A/T fluid leakage Refer to TM-175, "Inspection".
1: Bracket
A: Bolt
B : Self-sealing bolt
JSDIA1845ZZ
: Vehicle front
: Oil pan mounting bolt
: Vehicle front
JSDIA1591ZZ
JSDIA1592GB
SCIA5199E
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-205
< UNIT REMOVAL AND INSTALLATION > [7AT: RE7R01B]
C
EF
G H
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M A
B
TM
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UNIT REMOVAL AND INSTALLATION
TRANSMISSION ASSEMBLY
2WD
2WD : Exploded ViewINFOID:0000000006233263
2WD : Removal and InstallationINFOID:0000000006233264
REMOVAL
CAUTION:
 When removing the A/T assembly from engine, fi rst remove the crankshaft position sensor (POS)
from the A/T assembly.
 Be careful not to damage sensor edge.
1. Shift the selector lever to “P” position, and release the parking brake.
2. Disconnect the battery cabl e from the negative terminal.
3. Support A/T assembly with a transmission jack. CAUTION:
When setting the transmission jack, be careful not to allow it to collide against the drain plug and
overflow plug.
4. Remove rear engine mounting cross member.
5. Remove engine mounting insulator (rear).
6. Remove control cable from A/T assembly. Refer to TM-178, "
Removal and Installation".
7. Disconnect heated oxygen sensor 2 connectors (bank 1 and bank 2). Refer to EX-5, "
Exploded View".
1. A/T assembly 2. Front suspension rear cross mem-
ber3. Rear engine mounting cross
member
4. Engine mounting insulator (rear)
A. Tightening must be done following the installation procedure. Refer to TM-205, "
2WD : Removal and Installation".
Refer to GI-4, "
Components" for symbols in the figure.
JSDIA1856GB
Revision: 2010 May2011 QX56

TM-206
< UNIT REMOVAL AND INSTALLATION >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
8. Remove exhaust front tube (RH and LH) and main muffler. Refer to
EX-5, "Exploded View".
9. Separate propeller shaft assembly. Refer to DLN-144, "
Removal and Installation".
NOTE:
Cap or plug opening to prevent fluid from spilling.
10. Remove front under cover with a power tool. Refer to EXT-25, "
Removal and Installation".
11. Remove protector A and B. Refer to SCS-32, "
FRONT TUBE ASSEMBLY : Exploded View".
12. Remove front suspension rear cross member.
13. Remove crankshaft position sensor (POS) from A/T assembly. Refer to EM-106, "
Exploded View".
CAUTION:
 Never subject it to impact by dropping or hitting it.
 Never disassemble.
 Never allow metal filings, etc. to ge t on the sensor's front edge magnetic area.
 Never place in an area affected by magnetism.
14. Remove rear plate cover. Refer to EM-54, "
Exploded View".
15. Turn crankshaft, and remove the four tight ening bolts for drive plate and torque converter.
CAUTION:
When turning the crankshaft, turn it clockw ise as viewed from the front of the engine.
16. Remove A/T fluid cooler tube A and D. Refer to TM-202, "
Exploded View".
NOTE:
Cap or plug openings to prevent fluid from spilling.
17. Remove bolts fixing A/T assembly to engine with a power tool.
18. Disconnect connector from A/T assembly.
19. Remove harness and brackets from A/T assembly.
20. Remove A/T assembly from the vehicle. CAUTION:
 Secure torque converter to prevent it from dropping.
 Secure A/T assembly to a transmission jack.
21. Remove air breather hose and bracket. Refer to TM-199, "
2WD
: Exploded View".
22. Remove manual lever from A/T assembly. Refer to TM-178,
"Exploded View".
INSTALLATION
Note the following, and Install in the reverse order of removal.
 Check fitting of dowel pin ( ).
ATA0025D
JSDIA1597ZZ
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-207
< UNIT REMOVAL AND INSTALLATION > [7AT: RE7R01B]
C
EF
G H
I
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K L
M A
B
TM
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O P
 When installing A/T assembly to the engine, be sure to check dimension “A” to ensure it is within the reference value limit.
 When installing A/T assembly to the engine, attach the fixing bolts in accordance with the following standard.
*: Tightening the bolt with bracket (and washer). Refer to TM-199, "2WD : Exploded View".
 Align the positions of tightening bolts for drive plate with those of the torque converter, and temporarily
tighten the bolts. Then, tighten the bolts with the specified torque.
CAUTION:
 When turning crankshaft, turn it clockwise as viewed from the front of the engine.
 When tightening the tightening bolts for the torq ue converter after fixing the crankshaft pulley
bolts, be sure to confirm the tightening torque of the crankshaft pulley mounting bolts. Refer to
EM-62, "
Removal and Installation".
 Rotate crankshaft several turns and check to be sure that A/T rotates freely without binding after
converter is installed to drive plate.
2WD : Inspection and AdjustmentINFOID:0000000006233265
INSPECTION AFTER INSTALLATION
 Check A/T fluid leakage. Refer to TM-175, "Inspection".
 Check A/T position after adjusting A/T position. Refer to TM-101, "
Inspection".
ADJUSTMENT AFTER INSTALLATION
 Adjust A/T fluid level. Refer to TM-95, "Adjustment".
 Adjust A/T position. Refer to TM-101, "
Adjustment".
 Perform decel G sensor calibration when replacing A/T assembly. Refer to TM-91, "
Special Repair Require-
ment".
4WD
B: Scale
C : Straightedge
Dimension “A” : Refer to TM-297, "Torque Convert-
er".
JPDIA0042ZZ
Bolt symbol A
Insertion direction A/T assembly to engine
Number of bolts 9
Bolt length “L”
mm (in) 70 (2.76)
Tightening torque
N·m (kg-m, ft-lb) 113 (12, 83)
JSDIA1598ZZ
Revision: 2010 May2011 QX56

TM-208
< UNIT REMOVAL AND INSTALLATION >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
4WD : Exploded View
INFOID:0000000006226910
4WD : Removal and InstallationINFOID:0000000006226911
REMOVAL
CAUTION:
 When removing the A/T assembly from engine, fi rst remove the crankshaft position sensor (POS)
from the A/T assembly.
 Be careful not to damage sensor edge.
1. Shift the selector lever to “P” pos ition, and release the parking brake.
2. Disconnect the battery cable from the negative terminal.
3. Remove control cable from A/T assembly. Refer to TM-178, "
Removal and Installation".
4. Disconnect heated oxygen sensor 2 connectors (bank 1 and bank 2). Refer to EX-5, "
Exploded View".
5. Remove exhaust front tube (RH and LH) and main muffler. Refer to EX-5, "
Exploded View".
6. Support A/T assembly with a transmission jack. CAUTION:
When setting the transmission jack, be careful not to allow it to collide against the drain plug and
overflow plug.
7. Remove rear engine mounting cross member and engine mounting insulator (rear).
8. Separate propeller shaft assembly (front). Refer to DLN-129, "
Removal and Installation".
9. Separate propeller shaft assembly (rear). Refer to DLN-137, "
Removal and Installation".
10. Remove front under cover with a power tool. Refer to EXT-25, "
Removal and Installation".
11. Remove front suspension rear cross member.
1. A/T assembly 2. Front suspension rear cross mem- ber3. Rear engine mounting cross
member
4. Engine mounting insulator (rear)
A. Tightening must be done following the installation procedure. Refer to TM-208, "
4WD : Removal and Installation".
Refer to GI-4, "
Components" for symbols in the figure.
JPDIA1156GB
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-209
< UNIT REMOVAL AND INSTALLATION > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
12. Remove crankshaft position sensor (POS) from A/T assembly. Refer to EM-106, "Exploded View".
CAUTION:
 Never subject it to impact by dropping or hitting it.
 Never disassemble.
 Never allow metal filings, etc. to get on the sensor's front edge magnetic area.
 Never place in an area affected by magnetism.
13. Remove rear plate cover. Refer to EM-54, "
Exploded View".
14. Turn crankshaft, and remove the four tightening bolts for drive plate and torque converter. CAUTION:
When turning the crankshaft, turn it clock wise as viewed from the front of the engine.
15. Remove A/T fluid cooler tube A and D. Refer to TM-202, "
Exploded View".
NOTE:
Cap or plug openings to prevent fluid from spilling.
16. Support transfer assembly with a transmission jack.
17. Remove bolts fixing A/T assembly to engine with a power tool.
18. Disconnect connectors from A/T assembly and transfer assembly.
19. Remove harness and brackets from A/T assembly and transfer assembly.
20. Remove A/T assembly with transfer assembly from the vehicle. CAUTION:
 Secure torque converter to prevent it from dropping.
 Secure A/T assembly to a transmission jack.
21. Remove air breather hoses and bracket. Refer to TM-200, "
4WD
: Exploded View" (for A/T) and DLN-121, "Removal and Installa-
tion" (for transfer).
22. Remove manual lever from A/T assembly. Refer to TM-178,
"Exploded View".
23. Remove transfer assembly from A/T assembly with power tool. Refer to DLN-121, "
Removal and Installation".
NOTE:
Cap or plug opening to prevent fluid from spilling.
INSTALLATION
Note the following, and Install in the reverse order of removal.
 Check fitting of dowel pin ( ).
 When installing A/T assembly to the engine, be sure to check dimension “A” to ensure it is within the reference value limit.
SCIA2203E
JSDIA1597ZZ
B: Scale
C : Straightedge
Dimension “A” : Refer to TM-297, "Torque Convert-
er".
JPDIA0042ZZ
Revision: 2010 May2011 QX56

TM-210
< UNIT REMOVAL AND INSTALLATION >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
 When installing A/T assembly to the engine, attach the fixing bolts
in accordance with the following standard.
*: Tightening the bolt with bracket (and washer). Refer to TM-200, "4WD : Exploded View".
 Align the positions of tightening bolts for drive plate with those of the torque converter, and temporarily
tighten the bolts. Then, tighten the bolts with the specified torque.
CAUTION:
 When turning crankshaft, turn it clockwi se as viewed from the front of the engine.
 When tightening the tightening bolts for the torque converter after fixing the crankshaft pulley
bolts, be sure to confirm the tightening torque of the crankshaft pulley mounting bolts. Refer to
EM-62, "
Removal and Installation".
 Rotate crankshaft several turns and check to be sure that A/T rotates freely without binding after
converter is installed to drive plate.
4WD : Inspection and AdjustmentINFOID:0000000006226912
INSPECTION AFTER INSTALLATION
 Check A/T fluid leakage.
 Check A/T position after adjusting A/T position. Refer to TM-101, "
Inspection".
ADJUSTMENT AFTER INSTALLATION
 Adjust A/T fluid level. Refer to TM-95, "Adjustment".
 Adjust A/T position. Refer to TM-101, "
Inspection".
 Perform decel G sensor calibration w hen replacing A/T assembly. Refer to TM-91, "
Special Repair Require-
ment".
Bolt symbol A
Insertion direction A/T assembly to engine
Number of bolts 9
Bolt length “L”
mm (in) 70 (2.76)
Tightening torque
N·m (kg-m, ft-lb) 113 (12, 83)
JSDIA1598ZZ
Revision: 2010 May2011 QX56