sensor INFINITI QX56 2011 Factory Service Manual

TM-216
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
4WD MODELS
13. Snap ring 14. Oil pan gasket 15. Oil pan
16. Clip 17. Oil pan mounting bolt 18. Overflow plug
19. Drain plug 20. Drain plug gasket 21. Magnet
22. Clip 23. Control valve & TCM 24. Joint connector
25. Transmission case 26. Retaining pin 27. Output speed sensor
28. Needle bearing 29. Parking gear 30. Seal ring
31. Output shaft 32. Bearing race
Refer to
GI-4, "
Components" for symbols in the figure.
1. Parking actuator support 2. Parking pawl 3. Pawl shaft
4. Return spring 5. Needle bearing 6. Rear extension
7. Self-sealing bolt 8. Rear oil seal 9. Bracket *: Apply Genuine Anaerobic Liquid Gasket or equivalent. Refer to GI-22, "
Recommended Chemical Products and Sealants".
Refer to GI-4, "
Components" for symbols in the figure.
JSDIA1841GB
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-221
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1. Parking rod 2. Manual plate 3. Manual shaft
4. Retaining pin 5. Detent spring 6. Oil seal
7. Bracket 8. O-ring 9. Self-sealing bolt
10. Baffle plate 11. O-ring 12. Seal ring
13. Snap ring 14. Oil pan gasket 15. Oil pan
16. Clip 17. Oil pan mounting bolt 18. Overflow plug
19. Drain plug 20. Drain plug gasket 21. Magnet
22. Clip 23. Control valve & TCM 24. Joint connector
25. Transmission case 26. Retaining pin 27. Output speed sensor
28. Gasket 29. Needle bearing 30. Parking gear
31. Seal ring 32. Output shaft 33. Bearing race
Refer to GI-4, "
Components" for symbols in the figure.
1. Parking actuator support 2. Parking pawl 3. Pawl shaft
4. Return spring 5. Needle bearing 6. Adapter case
7. Self-sealing bolt 8. Rear oil seal 9. Bracket
Refer to GI-4, "
Components" for symbols in the figure.
JSDIA1766GB
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-233
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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31. Remove snap ring (1) from joint connector (A).
32. Push joint connector (A). CAUTION:
Be careful not to damage connector.
33. Remove clips (1) and oil pan mounting bolts ( ).
34. Remove oil pan (2) and oil pan gasket.
35. Remove magnets (1) from oil pan.
36. Disconnect output speed sensor connector (A). CAUTION:
Be careful not to damage connector.
37. Disengage terminal clips ( ).
JPDIA0007ZZ
JPDIA0008ZZ
: Front
JSDIA1591ZZ
JPDIA0009ZZ
JPDIA1104ZZ
Revision: 2010 May2011 QX56

TM-238
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
vii. Remove parking gear (1) from output shaft (2).
viii. Remove seal rings (1) from output shaft.
43. Remove needle bearing from transmission case.
44. 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 front
edge magnetic area.
 Never place in an area affected by magnetism.
45. Remove reverse brake snap ring (fixing plate) with 2 flat-bladed screwdrivers.
CAUTION:
 Be careful not to scratch transmission case and reversebrake retaining plate.
 Be careful not to damage snap ring.
NOTE:
Press out snap ring from the transmission case oil pan side gap
with a flat-bladed screwdriver, and remove it using a another
screwdriver.
46. Remove reverse brake retaining plate from transmission case.
JPDIA0029ZZ
JPDIA0030ZZ
SCIA5031E
: Bolt
JSDIA1321ZZ
SCIA5032E
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-247
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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17. Install snap ring in transmission case. CAUTION:
Be careful not to damage snap ring.
18. Measure clearance between retaining plate and snap ring. If not within specified clearance, select proper retaining plate.
19. Install needle bearing to transmission case. CAUTION:
Check the direction of needle bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
20. Install output speed sensor (1) to transmission case. Tighten revolution sensor bolt to the specified torque.
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.
SCIA2439E
Specified clearance “A”
Standard: TM-298, "
Reverse Brake Clearance".
Retaining plate: Refer to TM-298, "
Reverse Brake Clear-
ance"
SCIA3129E
SCIA5031E
: Bolt
JSDIA1321ZZ
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-265
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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 Make sure that input speed sen sor securely installs input
speed sensor holes (A).
 Hang down output speed sensor harness toward outside
so as not to disturb installa tion of the control valve &
TCM.
 Adjust A/T assembly harness connector of the control
valve & TCM to terminal ho le of transmission case.
 Assemble it so that manual valve cutout is engaged with manual plate projection.
64. Install bolts and clip (1) to the control valve & TCM. Tighten bolt (E) to the specified torque before tightening the other than bolts.
*: Reamer bolt
65. Connect output speed sensor connector (A).
66. Engage output speed sensor harness with terminal clips ( ).
JPDIA1106ZZ
SCIA5035E
: Front
Bolt symbol Length mm (in) Number of bolts A 43 (1.69) 3
B 40 (1.57) 2
C 54 (2.13) 6
D 50 (1.97) 2
E* 50 (1.97) 1
JPDIA1105ZZ
JPDIA1104ZZ
Revision: 2010 May2011 QX56

PRECAUTIONSVTL-3
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006376373
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision that would result in air ba g inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
 When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
 When using air or electric power tools or hammers , always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wh eel Rotation after Battery Disconnect
INFOID:0000000006376453
NOTE:
 Before removing and installing any control units, first tu rn the push-button ignition switch to the LOCK posi-
tion, then disconnect both battery cables.
 After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnos is according to self-diagnosis results.
For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the batte ry disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Turn the push-button ignition switch to ACC position. (At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock wil l remain released with both battery cables discon-
nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
Revision: 2010 May2011 QX56

WCS
PRECAUTIONSWCS-3
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006369725
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision that would result in air ba g inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
 When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
 When using air or electric power tools or hammers , always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Revision: 2010 May2011 QX56

WCS-16
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (COMBINATION METER)
LCD
[B&P N, B&P I, ID NG, ROTAT, SFT
P, INSRT, BATT, NO KY, OUTKY, LK
WN]Displays status of Intelligent Key system warning judged from meter display signal
received from BCM with CAN communication line.
ACC TARGET
[On/Off] Status of vehicle ahead detection indicator judged from meter display signal re-
ceived from ADAS control unit with CAN communication line.
ACC DISTANCE
[Off, Short, Middle, Long] Status of set distance indicator judged from meter display signal received from
ADAS control unit with
CAN communication line.
ACC OWN VHL
[On/Off] Status of own vehicle indicator judged from meter display signal received from
ADAS control unit with
CAN communication line.
ACC SET SPEED
[Off, km/h] Status of set vehicle speed indicator judged from meter display signal received
from ADAS control unit with CAN communication line.
ACC UNIT
[On/Off] Status of display unit judged from meter display signal received from ADAS con-
trol unit with CAN communication line.
SHIFT IND
[P, R, N, D, M1, M2, M3, M4, M5, M6,
M7] Status of shift position indicator judged from shift position signal and manual mode
indicator signal received from TCM with CAN communication line.
4WD IND
[AUTO, LOCK, 2W, 4Lo, HL1, HL2,
MALF] Status of 4WD indicator judged from 4WD indicator signal received from 4WD
control unit with CAN communication line.
BSW IND
[Off] This item is displayed, but cannot be monitored.
BSW W/L
[On/Off] Status of BSW warning lamp (orange) judged from BSW warning lamp signal re-
ceived from ADAS control unit with CAN communication line.
AT S MODE SW
[On/Off] Status of snow mode switch.
M RANGE SW
[On/Off] Status of manual mode switch.
NM RANGE SW
[On/Off] Status of non-manual mode switch.
AT SFT UP SW
[On/Off] Status of manual mode shift up switch.
AT SFT DWN SW
[On/Off] Status of manual mode shift down switch.
PKB SW
[On/Off] Status of parking brake switch.
BUCKLE SW
[On/Off] Status of seat belt buckle switch (driver side).
BRAKE OIL SW
[On/Off] Status of brake fluid level switch.
A/C AMP CONN
[Off] This item is displayed, but cannot be monitored.
ENTER SW
[On/Off] Status of (ENTER) switch.
SELECT SW
[On/Off] Status of (SELECT) switch.
DISTANCE
[km] Value of distance to empty calculated by combination meter.
OUTSIDE TEMP
[ ° C or °F] Ambient temperature value converted from ambient sensor signal received from
ambient sensor.
NOTE:
This may not match with the temperature value indicated on the information dis-
play. (Because the information display value is a corrected value from the ambient
sensor input value.)
Display item [Unit]
MAIN
SIGNALS Description
Revision: 2010 May2011 QX56

WCS
DIAGNOSIS SYSTEM (BCM)WCS-21
< SYSTEM DESCRIPTION >
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ACTIVE TEST
Display item [Unit] Description
PUSH SW
[On/Off] Status of push-button ignition switch judged by BCM.
UNLK SEN-DR
[On/Off] Status of unlock sensor judged by BCM.
VEH SPEED 1
[km/h] Value of vehicle speed signal received from combination meter with CAN communication line.
TAIL LAMP SW
[On/Off] Status of lighting switch judged by BCM using the combination switch readout function.
FR FOG SW
[On/Off] Status of front fog lamp switch judged by BCM using the combination switch readout function.
DOOR SW-DR
[On/Off] Status of driver side door switch judged by BCM.
CDL LOCK SW
[On/Off] Status of door lock unlock switch judged by BCM.
Display item
[Unit] Description
SEAT BELT WARN TEST The seat belt warning chime operation can be checked by operating the relevant function (On/Off).
LIGHT WARN ALM The light warning chime operation can be checked by operating the relevant function (On/Off).
Revision: 2010 May2011 QX56