clutch INFINITI FX35 2008 Service Manual

AT-2
Possible Cause ......................................................101
DTC Confirmation Procedure ................................101
Diagnosis Procedure .............................................101
DTC P0705 PARK/NEUTRAL POSITION
SWITCH ...........................................................
102
Description ........................................................... ..102
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
102
On Board Diagnosis Logic .....................................102
Possible Cause ......................................................102
DTC Confirmation Procedure ................................102
Wiring Diagram - AT - PNP/SW .............................103
Diagnosis Procedure .............................................103
DTC P0717 TURBINE REVOLUTION SEN-
SOR ..................................................................
106
Description ........................................................... ..106
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
106
On Board Diagnosis Logic .....................................106
Possible Cause ......................................................106
DTC Confirmation Procedure ................................106
Diagnosis Procedure .............................................106
DTC P0720 VEHICLE SPEED SENSOR A/T
(REVOLUTION SENSOR) ...............................
108
Description ........................................................... ..108
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
108
On Board Diagnosis Logic .....................................108
Possible Cause ......................................................108
DTC Confirmation Procedure ................................108
Wiring Diagram - AT - VSSA/T ..............................109
Diagnosis Procedure ........................................... ..110
DTC P0725 ENGINE SPEED SIGNAL ............112
Description ........................................................... ..112
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
112
On Board Diagnosis Logic .....................................112
Possible Cause ......................................................112
DTC Confirmation Procedure ................................112
Diagnosis Procedure .............................................112
DTC P0731 A/T 1ST GEAR FUNCTION .........114
Description ........................................................... ..114
On Board Diagnosis Logic .....................................114
Possible Cause ......................................................114
DTC Confirmation Procedure ................................114
Diagnosis Procedure .............................................115
DTC P0732 A/T 2ND GEAR FUNCTION .........116
Description ........................................................... ..116
On Board Diagnosis Logic .....................................116
Possible Cause ......................................................116
DTC Confirmation Procedure ................................116
Diagnosis Procedure .............................................117
DTC P0733 A/T 3RD GEAR FUNCTION .........118
Description ........................................................... .118
On Board Diagnosis Logic ....................................118
Possible Cause .....................................................118
DTC Confirmation Procedure ................................118
Diagnosis Procedure .............................................119
DTC P0734 A/T 4TH GEAR FUNCTION ..........120
Description ........................................................... .120
On Board Diagnosis Logic ....................................120
Possible Cause .....................................................120
DTC Confirmation Procedure ................................120
Diagnosis Procedure .............................................121
DTC P0735 A/T 5TH GEAR FUNCTION ..........122
Description ........................................................... .122
On Board Diagnosis Logic ....................................122
Possible Cause .....................................................122
DTC Confirmation Procedure ................................122
Diagnosis Procedure .............................................123
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE ..........................................
124
Description ........................................................... .124
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
124
On Board Diagnosis Logic ....................................124
Possible Cause .....................................................124
DTC Confirmation Procedure ................................124
Diagnosis Procedure .............................................124
DTC P0744 A/T TCC S/V FUNCTION (LOCK-
UP) ....................................................................
126
Description ........................................................... .126
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
126
On Board Diagnosis Logic ....................................126
Possible Cause .....................................................126
DTC Confirmation Procedure ................................126
Diagnosis Procedure .............................................126
DTC P0745 LINE PRESSURE SOLENOID
VALVE ..............................................................
128
Description ........................................................... .128
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
128
On Board Diagnosis Logic ....................................128
Possible Cause .....................................................128
DTC Confirmation Procedure ................................128
Diagnosis Procedure .............................................128
DTC P1705 THROTTLE POSITION SENSOR ..130
Description ........................................................... .130
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................
130
On Board Diagnosis Logic ....................................130
Possible Cause .....................................................130
DTC Confirmation Procedure ................................130
Diagnosis Procedure .............................................130
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AT-3
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DTC P1710 A/T FLUID TEMPERATURE SEN-
SOR CIRCUIT .................................................
..
132
Description .......................................................... ..132
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
132
On Board Diagnosis Logic ....................................132
Possible Cause .....................................................132
DTC Confirmation Procedure ................................132
Wiring Diagram - AT - FTS ....................................133
Diagnosis Procedure .............................................133
Component Inspection ..........................................135
DTC P1721 VEHICLE SPEED SENSOR MTR ..137
Description .......................................................... ..137
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
137
On Board Diagnosis Logic ....................................137
Possible Cause .....................................................137
DTC Confirmation Procedure ................................137
Diagnosis Procedure .............................................137
DTC P1730 A/T INTERLOCK ..........................139
Description .......................................................... ..139
On Board Diagnosis Logic ....................................139
Possible Cause .....................................................139
DTC Confirmation Procedure ................................139
Judgement of A/T Interlock ...................................139
Diagnosis Procedure .............................................139
DTC P1731 A/T 1ST ENGINE BRAKING ........141
Description .......................................................... ..141
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
141
On Board Diagnosis Logic ....................................141
Possible Cause .....................................................141
DTC Confirmation Procedure ................................141
Diagnosis Procedure .............................................141
DTC P1752 INPUT CLUTCH SOLENOID
VALVE ..............................................................
143
Description .......................................................... ..143
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
143
On Board Diagnosis Logic ....................................143
Possible Cause .....................................................143
DTC Confirmation Procedure ................................143
Diagnosis Procedure .............................................143
DTC P1757 FRONT BRAKE SOLENOID
VALVE ..............................................................
145
Description .......................................................... ..145
CONSULT-III Reference Value in Data Monitor
Mode ................................................................... ..
145
On Board Diagnosis Logic ....................................145
Possible Cause .....................................................145
DTC Confirmation Procedure ................................145
Diagnosis Procedure .............................................145
DTC P1762 DIRECT CLUTCH SOLENOID
VALVE ..............................................................
147
Description ........................................................... ..147
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
147
On Board Diagnosis Logic .....................................147
Possible Cause ......................................................147
DTC Confirmation Procedure ................................147
Diagnosis Procedure .............................................147
DTC P1767 HIGH AND LOW REVERSE
CLUTCH SOLENOID VALVE .........................
149
Description .............................................................149
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
149
On Board Diagnosis Logic .....................................149
Possible Cause ......................................................149
DTC Confirmation Procedure ................................149
Diagnosis Procedure .............................................149
DTC P1772 LOW COAST BRAKE SOLENOID
VALVE .............................................................
151
Description .............................................................151
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
151
On Board Diagnosis Logic .....................................151
Possible Cause ......................................................151
DTC Confirmation Procedure ................................151
Diagnosis Procedure .............................................151
DTC P1774 LOW COAST BRAKE SOLENOID
VALVE FUNCTION .........................................
153
Description .............................................................153
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
153
On Board Diagnosis Logic .....................................153
Possible Cause ......................................................153
DTC Confirmation Procedure ................................153
Diagnosis Procedure .............................................153
DTC P1815 MANUAL MODE SWITCH ..........155
Description .............................................................155
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
155
On Board Diagnosis Logic .....................................155
Possible Cause ......................................................155
DTC Confirmation Procedure ................................155
Wiring Diagram - AT - MMSW ...............................156
Diagnosis Procedure .............................................158
Component Inspection ...........................................159
MAIN POWER SUPPLY AND GROUND CIR-
CUIT ................................................................
160
Wiring Diagram - AT - MAIN ..................................160
Diagnosis Procedure .............................................161
CLOSED THROTTLE POSITION AND WIDE
OPEN THROTTLE POSITION CIRCUIT .........
164
CONSULT-III Reference Value in Data Monitor
Mode ......................................................................
164
Diagnosis Procedure .............................................164
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AT-4
BRAKE SIGNAL CIRCUIT ..............................165
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
165
Diagnosis Procedure .............................................165
A/T INDICATOR CIRCUIT ...............................166
Description ........................................................... ..166
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
166
Diagnosis Procedure .............................................166
TROUBLE DIAGNOSIS FOR SYMPTOMS .....167
Wiring Diagram - AT - NONDTC .......................... ..167
A/T Check Indicator Lamp Does Not Come On .....170
Engine Cannot Be Started in "P" or "N" Position ...170
In "P" Position, Vehicle Moves When Pushed .......171
In "N" Position, Vehicle Moves ..............................172
Large Shock ("N" to "D" Position) ..........................173
Vehicle Does Not Creep Backward in "R" Position ..175
Vehicle Does Not Creep Forward in "D" Position ..178
Vehicle Cannot Be Started from D1 .......................180
A/T Does Not Shift: D1→ D2 ................................ ..182
A/T Does Not Shift: D2→ D3 ................................ ..184
A/T Does Not Shift: D3→ D4 ................................ ..186
A/T Does Not Shift: D4→ D5 ................................ ..188
A/T Does Not Lock-up ......................................... ..190
A/T Does Not Hold Lock-up Condition ...................192
Lock-up Is Not Released .......................................194
Engine Speed Does Not Return to Idle .................194
Cannot Be Changed to Manual Mode ...................195
A/T Does Not Shift: 5th Gear → 4th Gear ........... ..196
A/T Does Not Shift: 4th Gear → 3rd Gear ........... ..197
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 ............................205
Control Device Removal and Installation ............. ..205
Control Rod Removal and Installation ...................206
Adjustment of A/T Position ....................................207
Checking of A/T Position .......................................207
A/T SHIFT LOCK SYSTEM .............................208
Description ........................................................... ..208
Shift Lock System Electrical Parts Location ..........208
Wiring Diagram - AT - SHIFT .................................209
Diagnosis Procedure .............................................209
KEY INTERLOCK CABLE ...............................212
Component .......................................................... ..212
Removal and Installation .......................................212
ON-VEHICLE SERVICE ...................................215
Control Valve with TCM and A/T Fluid Tempera-
ture Sensor 2 ....................................................... .
215
Parking Component (2WD Models Only) ..............226
Rear Oil Seal .........................................................233
Revolution Sensor Component (2WD Models
Only) .....................................................................
233
AIR BREATHER HOSE ....................................239
Removal and Installation ...................................... .239
TRANSMISSION ASSEMBLY ..........................241
Removal and Installation (2WD Models) .............. .241
Removal and Installation (AWD Models) ..............243
OVERHAUL ......................................................249
Component .......................................................... .249
Oil Channel ...........................................................261
Location of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings ......................... .
264
DISASSEMBLY .............................................. ..267
Disassembly ......................................................... .267
REPAIR FOR COMPONENT PARTS ..............285
Oil Pump .............................................................. .285
Front Sun Gear, 3rd One-Way Clutch ...................287
Front Carrier, Input Clutch, Rear Internal Gear .....289
Mid Sun Gear, Rear Sun Gear, High and Low Re-
verse Clutch Hub ..................................................
295
High and Low Reverse Clutch ..............................301
Direct Clutch .........................................................303
ASSEMBLY .................................................... ..306
Assembly (1) ........................................................ .306
Adjustment ............................................................320
Assembly (2) .........................................................323
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
330
General Specification ........................................... .330
Vehicle Speed at Which Gear Shifting Occurs .....330
Vehicle Speed at Which Lock-up Occurs/Releas-
es ..........................................................................
331
Stall Speed ............................................................331
Line Pressure ........................................................331
A/T Fluid Temperature Sensor ..............................332
Turbine Revolution Sensor ...................................332
Vehicle Speed Sensor A/T (Revolution Sensor) ...332
Reverse Brake ......................................................332
Total End Play .......................................................332
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AT-8
< SERVICE INFORMATION >
PRECAUTIONS
After performing each TROUBLE DIAGNOSIS, perform “DTC
(Diagnostic Trouble Code) Confirmation Procedure”.
If the repair is completed the DTC should not be displayed in
the “DTC Confirmation Procedure”.
 Always use the specified brand of ATF. Refer to MA-9, "
Fluids and Lubricants".
 Use lint-free paper not cloth rags during work.
 After replacing the ATF, dispose of the waste oil using the methods prescribed by law, ordinance, etc.
 Before proceeding with disassembly, thoroughly clean the out side of the transmission. It is important to pre-
vent the internal parts from becoming cont aminated by dirt or other foreign matter.
 Disassembly should be done in a clean work area.
 Use lint-free paper or towels for wiping parts clean. Common shop rags can leave fibers that could interfere
with the operation of the transmission.
 Place disassembled parts in order for easier and proper assembly.
 All parts should be carefully cleansed with a general purpose, non-flammable solvent before inspection or
reassembly.
 Gaskets, seals and O-rings should be replaced any time the transmission is disassembled.
 It is very important to perform functional tests whenever they are indicated.
 The valve body contains precision parts and requires extreme care when parts are removed and serviced. Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent springs
and small parts from becoming scattered or lost.
 Properly installed valves, sleeves, plugs, etc. will s lide along bores in valve body under their own weight.
 Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings and
seals, or hold bearings and washers in place during assembly. Do not use grease.
 Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
 After overhaul, refill the transmission with new ATF.
 When the A/T drain plug is removed, only some of t he ATF is drained. Old ATF will remain in torque con-
verter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer to
AT- 11 , "
Changing A/T Fluid", AT- 11 , "Checking A/T Fluid".
Service Notice or PrecautionINFOID:0000000001327125
ATF COOLER SERVICE
If ATF contains frictional material (clutches, bands, etc. ), or if an A/T is repaired, overhauled, or replaced,
inspect and clean the A/T fluid cooler mounted in the radiat or or replace the radiator. Flush cooler lines using
cleaning solvent and compressed air after repair. For A/T fluid cooler cleaning procedure, refer to AT-13, "
A/T
Fluid Cooler Cleaning". For radiator replacement, refer to CO-13 (for VQ35DE), CO-40 (for VK45DE).
OBD-II SELF-DIAGNOSIS
 A/T self-diagnosis is performed by the TCM in comb ination with the ECM. The results can be read through
the blinking pattern of the A/T CHECK indicator or the malfunction indicator lamp (MIL). Refer to the table on
AT-84, "
CONSULT-III Function (TRANSMISSION)" for the indicator used to display each self-diagnostic
result.
 The self-diagnostic results indicated by the MIL ar e automatically stored in both the ECM and TCM memo-
ries.
Always perform the procedure on AT-38, "
OBD-II Diagnostic Trouble Code (DTC)" to complete the
repair and avoid unnecessary blinking of the MIL.
For details of OBD-II, refer to EC-54
(for VQ35DE) or EC-632 (for VK45DE).
 Certain systems and components, especially those re lated to OBD, may use the new style slide-lock-
ing type harness connector. For descrip tion and how to disconnect, refer to PG-68
.
SEF217U
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PREPARATIONAT-9
< SERVICE INFORMATION >
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PREPARATION
Special Service ToolINFOID:0000000001327126
The actual shapes of Kent-Moore t ools may differ from those of special service tools illustrated here.
Commercial Service ToolINFOID:0000000001327127
Tool number
(Kent-Moore No.)
Tool name Description
ST2505S001
(J-34301-C)
Oil pressure gauge set
1. ST25051001
(—)
Oil pressure gauge
2. ST25052000
(—)
Hose
3. ST25053000
(—)
Joint pipe
4. ST25054000
(—)
Adapter
5. ST25055000
(—)
Adapter Measuring line pressure
KV31103600
(J-45674)
Joint pipe adapter
(With ST25054000) Measuring line pressure
ST33400001
(J-26082)
Drift
a: 60 mm (2.36 in) dia.
b: 47 mm (1.85 in) dia.  Installing rear oil seal (2WD models)
 Installing oil pump housing oil seal
KV31102400
(J-34285 and J-34285-87)
Clutch spring compressor
a: 320 mm (12.60 in)
b: 174 mm (6.85 in) Installing reverse brake
return spring retainer
ST25850000
(J-25721-A)
Sliding hammer
a: 179 mm (7.05 in)
b: 70 mm (2.76 in)
c: 40 mm (1.57 in) dia.
d: M12X1.75P Removing oil pump assembly
SCIA3695J
ZZA1227D
NT086
NT423
NT422
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AT-12
< SERVICE INFORMATION >
A/T FLUID
When wiping away the A/T fluid level gauge, always use lint-free paper, not a cloth one.
e. Re-insert A/T fluid level gauge into A/T fluid charging pipe as far as it will go. CAUTION:
To check A/T fluid level, insert the A/T fluid level gauge until the cap contacts the end of the A/T
fluid charging pipe, with the A/ T fluid level gauge reversed from the normal attachment conditions.
f. Remove A/T fluid level gauge and note reading. If reading is at low side of range, add ATF to the A/T fluid
charging pipe.
CAUTION:
Do not overfill.
5. Drive vehicle for approximately 5 minutes in urban areas.
6. Make the A/T fluid temperature approximately 65 °C (149 °F).
NOTE:
A/T fluid level will be greatly affected by temper ature as shown in figure. Therefore, be certain to
perform operation while checki ng data with CONSULT-III.
a. Connect CONSULT-III to data link connector.
b. Select “MAIN SIGNALS” in “DATA MONITO R” mode for “TRANSMISSION” with CONSULT-III.
c. Read out the value of “ATF TEMP 1”.
7. Recheck A/T fluid level at A/T fluid temperatures of approximately 65 °C (149 °F) using “HOT” range on A/
T fluid level gauge.
CAUTION:
 When wiping away the A/T fluid level gauge, always use lint-free paper, not a cloth one.
 To check A/T fluid level, inser t the A/T fluid level gauge
until the cap contacts the en d of the A/T fluid charging
pipe, with the A/T fluid level gauge reversed from the nor-
mal attachment conditions as shown.
8. Check A/T fluid condition.  If ATF is very dark or smells burned, check operation of A/T.
Flush cooling system after repair of A/T.
 If ATF contains frictional material (clutches, bands, etc.), replace radiator and flush cooler line using cleaning solvent
and compressed air after repair of A/T. Refer to CO-13
(for
VQ35DE) or CO-40
(for VK45DE) and AT-13, "A/T Fluid
Cooler Cleaning".
SLIA0016E
SCIA2899E
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A/T FLUIDAT-15
< SERVICE INFORMATION >
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6. Insert the tip of an air gun into the end of the cooler outlet hose.
7. Wrap a shop rag around the air gun tip and end of cooler outlet hose.
8. Blow compressed air regulated to 5 to 9 kg/cm
2 (70 to 130 psi)
through the cooler outlet hose to force any remaining ATF into
the coffee filter.
9. Remove the coffee filter from the end of the cooler inlet hose.
10. Perform "A/T FLUID COOL ER INSPECTION PROCEDURE".
A/T FLUID COOLER INSPECTION PROCEDURE
1. Inspect the coffee filter for debris.
a. If small metal debris less than 1 mm (0.040 in) in size or metal
powder is found in the coffee filter, this is normal. If normal
debris is found, the A/T fluid cooler/radiator can be re-used and
the procedure is ended.
b. If one or more pieces of debr is are found that are over 1 mm
(0.040 in) in size and/or peeled clutch facing material is found in
the coffee filter, the fluid cooler is not serviceable. The A/T fluid
cooler/radiator must be replac ed and the inspection procedure is
ended. Refer to CO-13
and CO-16 (for VQ35DE), CO-40 and
CO-44
(for VK45DE).
A/T FLUID COOLER FINAL INSPECTION
After performing all procedures, ensure that all remaining oil is cleaned from all components.
SCIA3834E
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AT-16
< SERVICE INFORMATION >
A/T CONTROL SYSTEM
A/T CONTROL SYSTEM
Cross-Sectional View (2WD Models)INFOID:0000000001327131
1. Front planetary gear 2. Mid planetary gear 3. Rear planetary gear
4. Direct clutch 5. High and low reverse clutch 6. Reverse brake
7. Drum support 8. Forward brake 9. Low coast brake
10. Input shaft 11. Torque converter 12. Oil pump
13. Front brake 14. 3rd one-way clutch 15. Input clutch
16. 1st one-way clutch 17. Control valve with TCM 18. Forward one-way clutch
19. Rear extension 20. Output shaft
SCIA5262E
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A/T CONTROL SYSTEMAT-17
< SERVICE INFORMATION >
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Cross-Sectional View (VQ35DE Models for AWD)INFOID:0000000001327132
1. Front planetary gear 2. Mid planetary gear 3. Rear planetary gear
4. Direct clutch 5. High and low reverse clutch 6. Reverse brake
7. Drum support 8. Forward brake 9. Low coast brake
10. Input shaft 11. Torque converter 12. Oil pump
13. Front brake 14. 3rd one-way clutch 15. Input clutch
16. 1st one-way clutch 17. Control valve with TCM 18. Forward one-way clutch
19. Adapter case 20. Output shaft
SCIA5263E
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AT-18
< SERVICE INFORMATION >
A/T CONTROL SYSTEM
Cross-Sectional View (V K45DE Models for AWD)
INFOID:0000000001327133
Shift MechanismINFOID:0000000001327134
The A/T uses compact triple planetary gear systems to improve power transmission efficiency, simplify con-
struction and reduce weight.
It also employs an optimum shift control and super wide gear ratios. They improve starting performance and
acceleration during medium and high-speed operation.
CONSTRUCTION
1. Front planetary gear 2. Mid planetary gear 3. Rear planetary gear
4. Direct clutch 5. High and low reverse clutch 6. Reverse brake
7. Drum support 8. Forward brake 9. Low coast brake
10. Input shaft 11. Torque converter 12. Oil pump
13. Front brake 14. 3rd one-way clutch 15. Input clutch
16. 1st one-way clutch 17. Control valve with TCM 18. Forward one-way clutch
19. Adapter case 20. Output shaft
SCIA5268E
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