Nissan Versa Sedan. Manual - part 62

 

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Nissan Versa Sedan. Manual - part 62

 

 

BCS

SYSTEM

BCS-9

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

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COMBINATION SWITCH READING SYSTEM
COMBINATION SWITCH READING SYSTEM : System Diagram

INFOID:0000000009268607

COMBINATION SWITCH READING SYSTEM : System Description

INFOID:0000000009268608

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

Intelligent Key system/engine start system

Door lock function

DLK-21, "DOOR LOCK FUNCTION : System Description"

Trunk open function

DLK-23, "TRUNK OPEN FUNCTION : System Description"

Warning function

DLK-27, "WARNING FUNCTION : System Description"

Key reminder function

DLK-26, "KEY REMINDER FUNCTION : System Descrip-
tion"

Engine start function

SEC-13, "INTELLIGENT KEY SYSTEM/ENGINE START 
FUNCTION : System Description"

Power window system

PWC-8, "System Description"

RAP (retained accessory power) system

BCS-26, "RETAINED PWR : CONSULT Function (BCM - RE-
TAINED PWR)"

TPMS (tire pressure monitoring system)

WT-8, "TIRE PRESSURE MONITORING SYSTEM : System 
Description"

System

Reference

AWMIA1224GB

BCS-10

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

SYSTEM

Combination switch circuit

Combination switch INPUT-OUTPUT system list

COMBINATION SWITCH READING FUNCTION

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.

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

INT VOLUME 1

HEADLAMP 2

HI BEAM

OUTPUT 4

INT VOLUME 3

TAIL LAMP

OUTPUT 5

INT VOLUME 2

FR FOG

AWMIA1221GB

JPMIA0609GB

BCS

SYSTEM

BCS-11

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

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- 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

• The circuit between OUTPUT 4 and INPUT 5 is formed when the TAIL LAMP switch is turned ON.

• BCM detects the combination switch status signal “5D” when the signal of OUTPUT 4 is input to INPUT 5.

• BCM judges that the TAIL LAMP switch is ON when the signal “5D” is detected.

Example 2: When some switches (TURN RH, TAIL LAMP) are turned ON

JMMIA0326GB

AWMIA1222GB

BCS-12

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

SYSTEM

• The circuits between OUTPUT 1 and INPUT 5 and between OUTPUT 4 and INPUT 5 are formed when the

TURN RH switch and TAIL LAMP switch are turned ON.

• BCM detects the combination switch status signal “5AD” when the signals of OUTPUT 1 and OUTPUT 4 are

input to INPUT 5.

• BCM judges that the TURN RH switch and TAIL LAMP switch are ON when the signal “5AD” is detected.

WIPER INTERMITTENT DIAL POSITION

BCM judges the wiper intermittent dial 1 - 7 by the status of INT VOLUME 1, 2 and 3 switches.

NOTE:
For details of wiper intermittent dial position, refer to 

WW-6, "System Description"

.

SIGNAL BUFFER SYSTEM
SIGNAL BUFFER SYSTEM : System Diagram

INFOID:0000000009268609

AWMIA1223GB

Wiper intermittent

dial position

Switch status

INT VOLUME 1

INT VOLUME 2

INT VOLUME 3

1

ON

ON

ON

2

ON

ON

OFF

3

ON

OFF

OFF

4

OFF

OFF

OFF

5

OFF

OFF

ON

6

OFF

ON

ON

7

OFF

ON

OFF

AWMIA1275GB

 

 

 

 

 

 

 

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