Nissan Tiida C11. Manual - part 1432

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< FUNCTION DIAGNOSIS >

WARNING CHIME SYSTEM

SEAT BELT WARNING CHIME : Component Parts Location

INFOID:0000000001728299

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1.

Combination meter M24

2.

BCM M18 (view with glove box re-
moved)

3.

Key switch and key lock solenoid M27 
(without Intelligent Key)

4.

Key switch and ignition knob switch 
M32 (with Intelligent Key)

5.

Combination switch (lighting switch) 
M28

6.

Front door switch (driver side) B9

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WARNING CHIME SYSTEM

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< FUNCTION DIAGNOSIS >

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SEAT BELT WARNING CHIME : Component Description

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KEY WARNING CHIME (WITH INTELLIGENT KEY)

KEY WARNING CHIME (WITH INTELLIGENT KEY) : System Diagram

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KEY WARNING CHIME (WITH INTELLIGENT KEY) : System Description

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WHEN MECHANICAL KEY IS USED

With the key inserted into the key switch, and the ignition switch in the LOCK or ACC position, when driver's
door is opened, the warning chime will sound.
• BCM detects key inserted into the ignition switch, and sends key warning signal to combination meter with

CAN communication line. 

• When combination meter receives key warning signal, it sounds the warning chime.

WHEN INTELLIGENT KEY IS CARRIED WITH THE DRIVER

Refer to 

DLK-16, "Work Flow"

 (without super lock) or 

DLK-240, "Work Flow"

 (with super lock).

7.

ABS actuator and electric unit (control 
unit) E33 (RHD models)

8.

ABS actuator and electric unit (control 
unit) E33 (LHD models)

9.

Seat belt buckle switch (driver side) B9

10.

Parking brake switch M17

11.

Seat belt warning lamp control unit 
B51 (located under passenger seat)

Unit

Description

Combination meter

• Judges whether the parking brake is released using the vehicle speed signal and the parking 

brake switch signal, and sounds the buzzer if necessary.

• Receives the seat belt buckle switch signal from the seat belt warning lamp control unit and trans-

mits it to BCM with CAN communication line.

• Receives a buzzer output signal from BCM via CAN communication line and sounds the buzzer.

BCM

Judges the seat belt warning condition from the seat belt buckle switch signal received from the 
combination meter and transmits a buzzer output signal to the combination meter via CAN commu-
nication line if necessary.

Seat belt buckle switch (driver 
side)

Transmits a seat belt buckle switch signal to the seat belt warning lamp control unit.

Seat belt warning lamp control 
unit

Transmits a seat belt buckle switch signal to the combination meter.

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WCS-12

< FUNCTION DIAGNOSIS >

WARNING CHIME SYSTEM

KEY WARNING CHIME (WITH INTELLIGENT KEY) : Component Parts Location

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1.

Combination meter M24

2.

BCM M18 (view with glove box re-
moved)

3.

Key switch and key lock solenoid M27 
(without Intelligent Key)

4.

Key switch and ignition knob switch 
M32 (with Intelligent Key)

5.

Combination switch (lighting switch) 
M28

6.

Front door switch (driver side) B9

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WARNING CHIME SYSTEM

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< FUNCTION DIAGNOSIS >

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KEY WARNING CHIME (WITH INTELLIGENT KEY) : Component Description

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KEY WARNING CHIME (WITHOUT INTELLIGENT KEY)

KEY WARNING CHIME (WITHOUT INTELLIGENT KEY) : System Diagram

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KEY WARNING CHIME (WITHOUT INTELLIGENT KEY) : System Description

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With the key inserted into the key switch, and the ignition switch in the OFF or ACC position, when driver's
door is opened, the warning chime will sound.
• BCM detects key inserted into the ignition switch, and sends key warning signal to combination meter with

CAN communication line. 

• When combination meter receives key warning signal, it sounds warning chime.

7.

ABS actuator and electric unit (control 
unit) E33 (RHD models)

8.

ABS actuator and electric unit (control 
unit) E33 (LHD models)

9.

Seat belt buckle switch (driver side) B9

10.

Parking brake switch M17

11.

Seat belt warning lamp control unit 
B51 (located under passenger seat)

Unit

Description

Combination meter

Receives key warning signal from BCM via CAN communication line and sounds the buzzer.

BCM

Judges the key warning condition using the door switch signal received from the front door switch 
(driver side), and the key switch signal received from the key switch and ignition knob switch. It then 
transmits a buzzer output signal to the combination meter via CAN communication line if necessary.

Front door switch (driver side)

Transmits door switch signal to BCM.

Key switch and ignition knob 
switch

Transmits key switch signal to BCM.

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