Infiniti FX35, FX50 (S51). Manual — part 481
BACK DOOR AUTO CLOSURE SYSTEM
DLK-47
< SYSTEM DESCRIPTION >
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BACK DOOR AUTO CLOSURE SYSTEM
CLOSURE FUNCTION
CLOSURE FUNCTION : System Diagram
INFOID:0000000005239508
CLOSURE FUNCTION : System Description
INFOID:0000000005239509
When back door is closed to the half-latch position, closure motor operates to rotate the latch lever from the
half latched to fully latched position and automatically closes back door. Then, closure motor reverses to the
neutral position.
AUTO CLOSURE OPERATION
From fully Open to Fully Closed Operation
The back door closure system operates as per the following.
1.
Back door is fully open.
2.
Back door closure motor starts the close operation after turning half latch switch OFF.
3.
Back door closure motor stops the close operation and starts the neutral operation after turning close
switch ON.
4.
Back door closure motor stops the open operation and returns the latch to the neutral position after turning
open switch OFF.
JMKIA2681GB
JMKIA2684GB
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< SYSTEM DESCRIPTION >
BACK DOOR AUTO CLOSURE SYSTEM
CLOSURE FUNCTION : Component Parts Location
INFOID:0000000005239510
CLOSURE FUNCTION : Component Description
INFOID:0000000005239511
OPEN FUNCTION
OPEN FUNCTION : System Diagram
INFOID:0000000005239512
OPEN FUNCTION : System Description
INFOID:0000000005239513
When the back door opener switch operation signal is input into back door control unit from BCM, back door is
opened by the closure motor open operation.
1.
BCM M118, M119, M121, M122,
M123
2.
Back door lock assembly D122
3.
Back door control unit D123
A.
Dash side lower (passenger side)
B.
View with back door finisher inner re-
moved
JMKIA2679ZZ
Item
Function
Back door control unit
Operates back door closure motor with signal from each switch.
Back door lock assembly
Back door closure motor, half latch switch, open switch, and close switch are installed.
• Closure motor: Opens and closes the back door
• Half latch switch: Starts the closure motor close operation
• Open switch: Stops the closure motor open operation
• Close switch: Stops the closure motor close operation
JMKIA2990GB
BACK DOOR AUTO CLOSURE SYSTEM
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< SYSTEM DESCRIPTION >
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BACK DOOR OPENER OPERATION
When back door opener switch is pressed, BCM transmits the back door opener switch operation signal to
back door control unit and back door control unit opens back door lock assembly.
The operation to open back door with Intelligent Key is the same as the Intelligent Key system. Refer to
24, "BACK DOOR OPEN FUNCTION : System Description"
NOTE:
Back door opener actuator is not for locking back door. The function is only to open back door.
OPERATION CONDITION
If the following conditions are satisfied, the back door opener operation is performed.
OPEN OPERATION
From fully Closed to Fully Open Operation
The back door open system operates as per the following.
1.
Back door is fully closed.
2.
Back door closure motor starts the open operation after turning back door opener switch ON.
3.
Back door closure motor stops the open operation after turning open switch ON.
4.
Back door closure motor starts the close operation after turning half latch switch ON.
5.
Back door closure motor stops the close operation and returns the latch to the neutral position after turn-
ing close switch OFF.
NOTE:
When half latch switch is turned ON or 5 seconds pass without opening back door, back door closure motor
starts the close operation.
Back door opener switch operation
Operation condition
Back door open
• All doors are unlocked
• Vehicle speed is less than 5 km/h (3 MPH).
JMKIA2991GB
DLK-50
< SYSTEM DESCRIPTION >
BACK DOOR AUTO CLOSURE SYSTEM
OPEN FUNCTION : Component Parts Location
INFOID:0000000005239514
OPEN FUNCTION : Component Description
INFOID:0000000005239515
1.
BCM M118, M119, M121, M122,
M123
2.
Back door lock assembly D122
3.
Back door control unit D123
5.
Combination meter M35
6.
Back door opener switch D114
A.
Dash side lower (passenger side)
B.
View with back door finisher inner re-
moved
JMKIA2992ZZ
Item
Function
BCM
Controls the back door opener function
Back door opener switch
Inputs back door opener switch operation signal to BCM
Back door control unit
Operates back door closure motor with the signal from each switch.
Back door lock assembly
Back door closure motor, half latch switch, open switch and close switch are installed
• Closure motor: Opens and closes back door
• Half latch switch: Starts the closure motor close operation
• Open switch: Stops the closure motor open operation
• Close switch: Stops the closure motor close operation
Combination meter
Transmits vehicle speed signal to BCM via CAN communication
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