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BRM-4
< PRECAUTION >
REPAIRING HIGH STRENGTH STEEL
PRECAUTION
REPAIRING HIGH STRENGTH STEEL
High Strength Steel (HSS)INFOID:0000000006248484
High strength steel is used for body panels in order to reduce vehicle weight.
Accordingly, precautions in repairing automotive bodies made of high strength steel are described below:
Read the following precautions when repairing HSS:
1. Additional points to consider
Tensile strength Major applicable parts 440 - 780 MPa Rear floor reinforcement
2nd seat mounting member assembly
Front seat mounting rear crossmember assembly
Front floor reinforcement
2nd crossmember (Lower)
Side radiator core support
Radiator core support main assembly
Front side member assembly
4th crossmember
2nd seat mounting crossmember
Rear side member
Rear crossmember
Inner side roof rail
Upper inner front pillar
Inner center pillar
Upper front pillar reinforcement
Lower center pillar brace
Front pillar brace
Outer sill reinforcement
Front roof rail
Rear roof rail
Radiator guard crossmember assembly
2nd crossmember assembly
2nd crossmember reinforcement
Front side member assembly
Front bound bumper bracket assembly
Lower front link mounting bracket assembly
Center side member assembly
Fuel tank protector assembly
Rear suspension mounting bracket assembly
Rear shock absorber bracket assembly
Rear side member assembly
Rear end gusset
Rear end crossmember assembly
980 - 1350 MPa Lower dash center reinforcement
(Lower dash Component part)
Inner sill
Rear seat crossmember
(2nd seat mounting crossmember component part)
Inner center pillar (Upper)
Upper outer center pillar reinforcement
(Lower center pillar brace component part)
Front bumper crossmember assembly
Revision: 2010 May2011 QX56
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BRM-12
< PREPARATION >
BODY COMPONENT PARTS
NOTE:
For the parts without a number described in the figure, it is supplied only with the assembly part that the part is included with.
Tensile strength column shows the largest strength value of a part in the component part. No. Parts name
Tensile strength
(MPa) Both sided anti-corrosive
precoated steel sections
1. Hood Under 440×
2. Front fender (RH & LH) Under 440 ×
3. Inner side roof rail (RH & LH) 590 —
4. Upper inner front pillar (RH & LH) c. T=1.6 mm
(0.063 in)
980
caution—
5. Inner center pillar (RH & LH) d. T=1.6 mm
(0.063 in)
980
caution×
6. Center sill reinforcement assembly (RH & LH) Under 440 ×
7. Side body assembly (RH & LH) Refer to No.8 −13
8. Upper front pillar reinforcement (RH & LH) 590 —
9. Lower center pillar brace (RH & LH) e. T=1.8 mm
(0.071 in)
980
caution—
10. Front pillar brace (RH & LH) 590 —
11. Outer sill reinforcement (RH & LH) 590 ×
12. Outer front side body (RH & LH) Under 440 ×
13. Front fender bracket assembly (RH & LH) Under 440 ×
14. Outer sill (RH & LH) Under 440 ×
15. Front door assembly (RH & LH) 440 ×
16. Outer front door panel (RH & LH) Under 440 ×
17. Rear door assembly (RH & LH) 440 ×
18. Outer rear door panel (RH & LH) Under 440 ×
19. Back pillar reinforcement (RH & LH) Under 440 —
20. Inner back pillar (RH & LH) Under 440 —
21. Inner rear side roof rail (RH & LH) Under 440 —
22. Inner rear pillar (RH & LH) 590 —
23. Lower inner rear pillar (RH & LH)v Under 440 —
24. Side panel reinforcement (RH & LH) Under 440 —
25. Outer rear wheelhouse (RH & LH) Under 440 ×
26. Inner rear wheelhouse (RH & LH) Under 440 ×
27. Outer rear wheelhouse extension (RH & LH) Under 440 ×
28. Roof assembly Under 440 —
29. Front roof rail 440 —
30. Roof bow No.3 Under 440 —
31. Roof bow No.4 Under 440 —
32. Roof bow No.5 Under 440 —
33. Rear roof rail 440 —
34. Rear fender (RH & LH) Under 440 ×
35. Back pillar assembly (RH & LH) Under 440 —
36. Rear fender bracket (RH & LH) Under 440 —
37. Fuel filler lid Under 440 ×
38. Rear fender extension (RH & LH) Under 440 ×
39. Back door Under 440 ×
Revision: 2010 May2011 QX56
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BODY CONSTRUCTIONBRM-23
< REMOVAL AND INSTALLATION >
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10. Lower dash reinforcement 11. Lower dash 12. Lower hinge plate (Front)
13. Lower front pillar hinge brace 14. Front floor 15. 2nd body mounting member
16. 2nd body mounting bracket 17. Inner sill 18. Center sill reinforcement
19. Outer sill reinforcement 20. Side member outrigger 21. Inner center pillar
22. Inner center pillar reinforcement 23. Upper outer center pillar reinforce- ment24. Center pillar hinge brace
25. Center pillar plate 26. Lower hinge plate (Rear) 27. Lower center pillar bracket
28. 3rd body mounting bracket 29. Rear floor front 30. Outer sill rear reinforcement
31. Anchor plate 32. Outer rear wheelhouse 33. Sill closing plate
34. Inner rear pillar 35. Inner side panel reinforcement 36. Roof rail rear brace
37. Inner back pillar 38. Inner rear roof side rail 39. Back pillar reinforcement
40. Upper back pillar main 41. Back pillar seat belt anchor
Revision: 2010 May2011 QX56
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BRM-42
< REMOVAL AND INSTALLATION >
REPLACEMENT OPERATIONS
Rear Fender Extension
INFOID:0000000006248504
Rear Panel and Rear End CrossmemberINFOID:0000000006248505
Remove the rear side member (reusable) and the rear end cross bracket (reusable) for easier installation.
Unit: mm (in)
Replacement parts
z Rear fender extension (LH)
JSKIA1838GB
Revision: 2010 May2011 QX56
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REPLACEMENT OPERATIONSBRM-45
< REMOVAL AND INSTALLATION >
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Rear Floor RearINFOID:0000000006248506
Work after rear panel and rear end crossmember are removed.
1. Rear side member 2. Rear end cross bracket
Unit: mm (in) : Vehicle front
: Welding method, the number of welding points, and the tightening torque apply to both side of the vehicle.
JSKIA1921GB
Revision: 2010 May2011 QX56
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BRM-60
< SERVICE DATA AND SPECIFICATIONS (SDS)
LOCATION OF PLASTIC PARTS
Component Material Component Material
1Map lamp Lens PC 7 Center console PP
Housing PP 8 Glove box PP
2 Front pillar garnish PP 9 Instrument panelCore PP
3 Center pillar garnish PP Skin TPU
4Personal lamp Lens PC 10 Cluster lid C PC + ABS
Housing PP 11 Cluster lid D PC + ABS
5 Rear pillar finisher PP 12 Cluster lid A ABS
6 Back pillar garnish PP
JSKIA1905ZZ
Revision: 2010 May2011 QX56
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![INFINITI QX56 2011 Factory Service Manual
DAS
COMPONENT PARTSDAS-409
< SYSTEM DESCRIPTION > [BSW]
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Component DescriptionINFOID:0000000006223850
A. Rear bumper removed condition B. Rear bumper removed condition C. INFINITI QX56 2011 Factory Service Manual
DAS
COMPONENT PARTSDAS-409
< SYSTEM DESCRIPTION > [BSW]
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Component DescriptionINFOID:0000000006223850
A. Rear bumper removed condition B. Rear bumper removed condition C.](/manual-img/42/57033/w960_57033-1373.png)
DAS
COMPONENT PARTSDAS-409
< SYSTEM DESCRIPTION > [BSW]
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Component DescriptionINFOID:0000000006223850
A. Rear bumper removed condition B. Rear bumper removed condition C. Instrument lower panel (LH)
D. Behind of instrument lower panel (LH)
Component Description
ADAS control unit Being connected with side radar (LH and RH) via ITS communication, receives vehicle detection
signal and transmits BSW indicator signal and BSW indicator dimmer signal to side radar
Activates the warning buzzer and warning systems ON indicator
Side radar LH/ RH Being connected with ADAS control unit via ITS communication, transmits vehicle detection sig-
nal
Receives BSW indicator signal and BSW indicator dimmer signal from ADAS control unit and transmits an indicator operation signal to BSW indicator LH/RH
RH side radar equips right/left switching signal circuit for identifying LH or RH because the parts
of side radar are common for right and left
BSW indicator LH/ RH Receives BSW indicator operation signal from side radar LH/RH and turns OFF, turns ON or blinks
ABS actuator and electric unit
(control unit) Transmits vehicle speed signal to ADAS control unit via CAN communication
Warning systems switch Inputs the switch signal to ADAS control unit
Warning systems ON indicator
(On the warning systems switch) Indicates BSW system status
Warning buzzer Receives buzzer signal from ADAS control unit and sounds buzzer.
Combination meter Receives BSW warning lamp signal via CAN communication
Turns the BSW warning lamp ON/OFF according to the signals from the ADAS control unit via
CAN communication
BCM Transmits turn indicator signal to ADAS control unit via CAN communication
Transmits dimmer signal to ADAS control unit via CAN communication
TCM Transmits the shift position signal to ADAS control unit via CAN communication
Revision: 2010 May2011 QX56
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DLK-26
< SYSTEM DESCRIPTION >
SYSTEM (INTELLIGENT KEY SYSTEM)
KEY REMINDER FUNCTION : System Description
INFOID:0000000006225848
Key reminder is the function that prevents the key from being left in the vehicle.
Key reminder has the following 3 functions.
*: If the door closing impact shocks the door lock knob, or contacts against baggage with the door lock knob might activate the door locks
accidentally but unlock operation is perform in these cases.
CAUTION:
The above function operates when the Intelligent Key is inside the vehicle. However, there may be
times when the Intelligent Key cannot be detected, and this function does not operate when the Intel-
ligent Key is on the instrument panel, rear parcel shelf, or in the glove box. Also, this system some-
times does not operate if the Intelligent Key is in the door pocket for the open door.
WELCOME LIGHT FUNCTION
WELCOME LIGHT FUNCTION : System DiagramINFOID:0000000006225849
WELCOME LIGHT FUNCTION : System DescriptionINFOID:0000000006225850
The welcome light function operates as per the following. When the Intelligent Key is within the outside key
antenna detection area, the BCM turns on interior room lamp
* and operates heart beat operation of the push-
button ignition switch.
*: Settings for map lamp, foot lamp, personal lamp, and puddle lamp are available.
OPERATION DESCRIPTION
Key remainder func-
tion Operation condition Operation
Driver door closed* Right after driver side door is closed under the following conditions
Door lock operation is performed
Driver side door is open
Driver side door is in lock state All doors (except back door)
and fuel filler lid unlock
Door is open or closed Right after all doors are closed under the following conditions
Intelligent Key is inside the vehicle
Any door is open
All doors (except back door) are locked by door lock and unlock switch
or door lock knob All doors (except back
door) and fuel filler lid un-
lock
Honk Intelligent Key warn- ing buzzer
Back door is closed Right after back door is closed under the following conditions
Intelligent Key is inside vehicle
All doors (except for back door) are closed
All doors (except for back door) are locked All doors (except for back
door) and fuel filler lid un-
lock
Back door can open with back door opener switch
Honk Intelligent Key warn-
ing buzzer
JMKIA5072GB
Revision: 2010 May2011 QX56