Nissan Versa Sedan. Instruction — part 78
BCS
COMPONENT PARTS
BCS-73
< SYSTEM DESCRIPTION >
[WITHOUT INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
POWER CONSUMPTION CONTROL SYSTEM
POWER CONSUMPTION CONTROL SYSTEM : Component Parts Location
INFOID:0000000009268661
1.
BCM (view with combination meter
removed)
2.
Combination switch (lighting and
turn signal)
3.
Combination switch (wiper and
washer)
1
IPDM E/R
2
BCM (view with instrument panel re-
moved)
3
Combination meter (type A)
4
Combination meter (type B)
ALMIA0535ZZ
BCS-74
< SYSTEM DESCRIPTION >
[WITHOUT INTELLIGENT KEY SYSTEM]
SYSTEM
SYSTEM
BODY CONTROL SYSTEM
BODY CONTROL SYSTEM : System Description
INFOID:0000000009268662
OUTLINE
• BCM (Body Control Module) controls various electrical components. It receives the information required
from CAN communication and the signals received from each switch and sensor.
• BCM has a combination switch reading function for reading the status of combination switch (light, turn sig-
nal, wiper and washer) in addition to functions for controlling the operation of various electrical components.
It also has a signal transmission function for other systems, and a power consumption control function that
reduces the power consumption with the ignition switch OFF.
• BCM is equipped with a diagnosis function that operates with CONSULT and allows for various settings to
be changed.
BCM FUNCTION LIST
COMBINATION SWITCH READING SYSTEM
System
Reference page
Combination switch reading system
BCS-75, "COMBINATION SWITCH READING SYSTEM : System
Diagram"
Signal buffer system
BCS-78, "SIGNAL BUFFER : System Diagram"
Power consumption control system
BCS-78, "POWER CONSUMPTION CONTROL SYSTEM : System
Diagram"
Headlamp system
EXL-8, "HEADLAMP SYSTEM : System Diagram"
Daytime running light system
EXL-9, "WITH DAYTIME LIGHT SYSTEM : System Diagram"
Turn signal and hazard warning lamp system
EXL-10, "TURN SIGNAL AND HAZARD WARNING LAMP SYS-
TEM : System Diagram"
Parking, license plate, side maker and tail lamps system
EXL-10, "PARKING, LICENSE PLATE AND TAIL LAMP SYSTEM :
System Diagram"
Exterior lamp battery saver system
EXL-8, "HEADLAMP SYSTEM : System Description"
Interior room lamp control system
INL-8, "INTERIOR ROOM LAMP CONTROL SYSTEM : System Di-
agram"
Interior room lamp battery saver system
INL-9, "INTERIOR ROOM LAMP CONTROL SYSTEM : System De-
scription"
Front wiper and washer system
Instruction air conditioner system
HAC-10, "MANUAL AIR CONDITIONING SYSTEM : System Dia-
gram"
Warning chime system
WCS-7, "WARNING CHIME SYSTEM : System Diagram"
Power door lock system
DLK-200, "POWER DOOR LOCK SYSTEM : System Diagram"
Nissan vehicle immobilizer system-NATS (NVIS)
SEC-111, "NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : Sys-
tem Diagram"
Panic alarm
DLK-201, "REMOTE KEYLESS ENTRY SYSTEM : System Dia-
gram"
Rear window defogger system
Remote keyless entry system
DLK-201, "REMOTE KEYLESS ENTRY SYSTEM : System Dia-
gram"
Power window system
BCS
SYSTEM
BCS-75
< SYSTEM DESCRIPTION >
[WITHOUT INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
COMBINATION SWITCH READING SYSTEM : System Diagram
INFOID:0000000009268663
COMBINATION SWITCH READING SYSTEM : System Description
INFOID:0000000009268664
OUTLINE
• BCM reads the status of the combination switch (light, turn signal, wiper and washer) and recognizes the
status of each switch.
• BCM has a combination of 5 output terminals (OUTPUT 1 - 5) and 5 input terminals (INPUT 1 - 5). It reads a
maximum of 20 switch states.
COMBINATION SWITCH MATRIX
Combination switch circuit
Combination switch INPUT-OUTPUT system list
COMBINATION SWITCH READING FUNCTION
AWMIA1339GB
System
INPUT 1
INPUT 2
INPUT 3
INPUT 4
INPUT 5
OUTPUT 1
—
FR WASHER
FR WIPER LOW
TURN LH
TURN RH
OUTPUT 2
FR WIPER HI
—
FR WIPER INT
PASSING
HEADLAMP 1
OUTPUT 3
—
—
—
HEADLAMP 2
HI BEAM
OUTPUT 4
—
—
—
—
TAIL LAMP
OUTPUT 5
—
—
—
—
—
AWMIA1340GB
BCS-76
< SYSTEM DESCRIPTION >
[WITHOUT INTELLIGENT KEY SYSTEM]
SYSTEM
Description
• BCM reads the status of the combination switch at 10 ms intervals normally.
NOTE:
BCM reads the status of the combination switch at 60 ms intervals when BCM is controlled at low power
consumption control mode.
• BCM operates as follows and judges the status of the combination switch.
- It operates the transistor on OUTPUT side in the following order: OUTPUT 1
→ 2 → 3 → 4 → 5, and outputs
voltage waveform.
- The voltage waveform of OUTPUT corresponding to the formed circuit is input into the interface on INPUT
side if any (1 or more) switches are ON.
- It reads this change of the voltage as the status signal of the combination switch.
Operation Example
In the following operation example, the combination of the status signals of the combination switch is replaced
as follows: INPUT 1 - 5 to “1 - 5” and OUTPUT 1 - 5 to “A - E”.
Example 1: When a switch (TAIL LAMP) is turned ON
JPMIA0609GB
JMMIA0326GB
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