Nissan Murano. Manual — part 175
BCS
BODY CONTROL SYSTEM
BCS-9
< SYSTEM DESCRIPTION >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Component Parts Location
INFOID:0000000009722433
Rear window defogger system
•
DEF-4, "WITH BOSE SYSTEM : System Diagram"
(With
BOSE system)
•
DEF-6, "WITHOUT BOSE SYSTEM : System Diagram"
(With-
out BOSE system)
Intelligent Key system/engine start system
DLK-18, "INTELLIGENT KEY SYSTEM : System Diagram"
Power window system
Retained accessory power (RAP) system
Tire pressure monitor system (TPMS) - AIR PRESSURE MONI-
TOR
System
Reference
1.
BCM
A.
Behind of combination meter
JPMIA0897ZZ
BCS-10
< SYSTEM DESCRIPTION >
COMBINATION SWITCH READING SYSTEM
COMBINATION SWITCH READING SYSTEM
System Diagram
INFOID:0000000009722434
NOTE:
• *1: TAIL LAMP switch links lighting switch 1ST position.
• *2: “FR WIP INT/AT” is FR WIPER INT/AUTO.
System Description
INFOID:0000000009722435
OUTLINE
• BCM reads the status of the combination switch (light, turn signal, wiper and washer) and recognizes the
status of each switch.
• BCM is a combination of 5 output terminals (OUTPUT 1 - 5) and 5 input terminals (INPUT 1 - 5). It reads a
maximum of 20 switch status.
COMBINATION SWITCH MATRIX
Combination switch circuit
NOTE:
• *1: TAIL LAMP switch links lighting switch 1ST position.
• *2: “FR WIP INT/AT” is FR WIPER INT/AUTO.
JMMIA0292GB
JMMIA0293GB
BCS
COMBINATION SWITCH READING SYSTEM
BCS-11
< SYSTEM DESCRIPTION >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Combination switch INPUT-OUTPUT system list
NOTE:
Headlamp has a dual system switch.
COMBINATION SWITCH READING FUNCTION
Description
• BCM reads the status of the combination switch at 10 ms interval normally.
NOTE:
BCM reads the status of the combination switch at 60 ms interval when BCM is controlled at low power con-
sumption mode.
• BCM operates as follows and judges the status of the combination switch.
- INPUT 1 - 5 outputs the voltage waveforms of 5 systems simultaneously.
- It operates the transistor on OUTPUT side in the following order: OUTPUT 5
→
4
→
3
→
2
→
1.
- The voltage waveform of INPUT corresponding to the formed circuit changes according to the operation of
the transistor on OUTPUT side if any (1 or more) switches are ON.
- It reads this change of the voltage as the status signal of the combination switch.
System
OUTPUT 1
OUTPUT 2
OUTPUT 3
OUTPUT 4
OUTPUT 5
INPUT 1
—
FR WASHER
FR WIPER LOW
TURN LH
TURN RH
INPUT 2
FR WIPER HI
—
FR WIPER INT/
AUTO
PASSING
HEADLAMP 1
INPUT 3
WIP VOLUME 1
RR WASHER
—
HEADLAMP 2
HI BEAM
INPUT 4
RR WIPER INT
WIP VOLUME 3
AUTO LIGHT
—
TAIL LAMP
INPUT 5
WIP VOLUME 2
RR WIPER ON
—
FR FOG
—
JPMIA0067GB
JPMIA0068GB
BCS-12
< SYSTEM DESCRIPTION >
COMBINATION SWITCH READING SYSTEM
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 (TURN RH switch) is turned ON
• The circuit between INPUT 1 and OUTPUT 5 is formed when the TURN RH switch is turned ON.
• BCM detects the combination switch status signal “1E” when the signal of OUTPUT 5 is input to INPUT 1.
• BCM judges that the TURN RH switch is ON when the signal “1E” is detected.
Example 2: When some switches (turn RH switch, front wiper LO switch) are turned ON
• The circuits between INPUT 1 and OUTPUT 5 and between INPUT 1 and OUTPUT 3 are formed when the
TURN RH switch and FR WIPER LOW switch are turned ON.
• BCM detects the combination switch status signal “1CE” when the signals of OUTPUT 3 and OUTPUT 5 are
input to INPUT 1.
• BCM judges that the TURN RH switch and FR WIPER LOW switch are ON when the signal “1CE” is
detected.
WIPER VOLUME DIAL POSITION
BCM judges the wiper volume dial 1 - 7 by the status of WIP VOLUME 1, 2 and 3 switches.
JMMIA0294GB
JMMIA0295GB
Wiper volume dial position
Switch status
WIP VOLUME 1
WIP VOLUME 2
WIP VOLUME 3
1
ON
ON
ON
2
ON
ON
OFF
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст