Nissan Leaf. Manual - part 1249

VSP-16

< SYSTEM DESCRIPTION >

SYSTEM

APPROACHING VEHICLE SOUND FOR PEDESTRIANS (VSP) SYSTEM
APPROACHING VEHICLE SOUND FOR PEDESTRIANS (VSP) SYSTEM : System 
Description

INFOID:0000000010121568

SYSTEM DIAGRAM

Except for Mexico

For Mexico

SYSTEM DESCRIPTION (Except for Mexico)

• The VSP system operates according to the signals received from the VCM, combination meter, and BCM via

CAN communication, and notifies the driver that the vehicle is approaching a pedestrian. 

• The VSP system includes the following three types of sound. 

- Driving start sound

- Driving sound

- Reverse sound

• The VSP system starts operating when the power switch is turned from OFF to READY. 

No.

Description

When the READY to drive indicator lamp turns ON, the READY effect sound operates. 

The operation time of the READY effect sound ends. 

When the power switch turns OFF, operation of the READY effect sound stops. 

When the READY to drive indicator lamp turns OFF, operation of the READY effect sound stops. 

When the VSP system operates, operation of the READY effect sound stops. 

JSMIA1296GB

JSMIA1315GB

SYSTEM

VSP-17

< SYSTEM DESCRIPTION >

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• The VSP warning lamp illuminates when there is a malfunction in the VSP system.

SYSTEM DESCRIPTION (For Mexico)

• The VSP system operates according to the signals received from the VCM, combination meter, and BCM via

CAN communication, and notifies the driver that the vehicle is approaching a pedestrian. 

• The VSP system includes the following three types of sound. 

- Driving start sound

- Driving sound

- Reverse sound

• The VSP system operation status can be checked with the VSP OFF indicator.

• The VSP system can be set to operation stop or operation resume with the VSP OFF switch.

• The VSP system starts operating when the power switch is turned from OFF to READY. 

• The VSP OFF indicator illuminates when there is a malfunction in the VSP system.

DRIVING START SOUND

The driving start sound is a function which operates when the selector lever is in the “D” position and the brake

pedal is released.

Operation Description

• The combination meter transmits the vehicle speed signal to the VSP control unit via CAN communication. 

• The BCM transmits the stop lamp switch signal to the VSP control unit via CAN communication. 

• The VCM transmits the following signals to the VSP control unit via CAN communication. 

- READY to drive indicator lamp request signal

- Shift position signal

• The VSP control unit judges that the driving start sound is necessary according to the signals received from

each unit.

• When the VSP control unit judges that operation of the driving start sound is necessary, it transmits the VSP

speaker signal to the VSP speaker. 

• The driving start sound operates until the end of its operation time (500 ms) and then switches to the driving

sound. 

Operation Condition

The driving start sound operates when all of the following conditions are met.

Operation Stop Condition

The driving start sound operation stops when the following condition is met. 

NOTE:

The driving start sound operates until the end of its operation time (500 ms) and then switches to the driving

sound. 

Signal Path

• The VSP control unit judges that the driving start sound is necessary according to the following signals, and

operates the driving start sound. 

Operation condition

Selector lever

“D” Position

Vehicle speed

0 km/h (0 MPH)

READY to drive indicator 
lamp

ON

Brake pedal

Released (not depressed)

Operation stop condition

Reverse sound

Operation

Signal name

Signal path

READY to drive indicator lamp request signal

VCM 

 VSP control unit

Shift position signal

VCM 

 VSP control unit

VSP-18

< SYSTEM DESCRIPTION >

SYSTEM

• When the VSP control unit judges that the driving start sound is necessary, it transmits the following signal. 

Timing Chart

DRIVING SOUND

• The driving sound is a function that operates according to the vehicle speed. 

• The driving sound tone frequency changes according to the vehicle speed. 

• When accelerating, driving sound operates until the speed reaches approximately 30 km/h (19 MPH). When

decelerating, it starts operating at approximately 25 km/h (16 MPH). 

• Operation stops when the vehicle stops or the vehicle speed is 0 km/h (0 MPH).

Operation Description

• The combination meter transmits the vehicle speed signal to the VSP control unit via CAN communication. 

• The VCM transmits the following signals to the VSP control unit via CAN communication. 

- READY to drive indicator lamp request signal

- Shift position signal

• The VSP control unit judges that the driving sound is necessary according to the signals received from the

combination meter and VCM via CAN communication. 

• When the VSP control unit judges that operation of the driving sound is necessary, it transmits the VSP

speaker signal to the VSP speaker. 

Operation Condition

The driving sound operates when all of the following conditions are met. 

Vehicle speed signal

Combination meter 

 VSP control unit

Stop lamp switch signal

BCM 

 VSP control unit

Signal name

Signal path

VSP speaker signal

VSP control unit 

 VSP speaker

Signal name

Signal path

JSMIA0480GB

No.

Description

The driving start sound operates when the selector lever is in the “D” position and the brake pedal is released. 

Operation of the driving start sound stops when the selector lever is moved to the “R” position.

The driving start sound operates until the end of its operation time (500 ms) and then switches to the driving sound. 
NOTE:
The system switches to the driving sound after the driving start sound fades out. 

SYSTEM

VSP-19

< SYSTEM DESCRIPTION >

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Operation Stop Condition

The driving sound stops operating when any of the following conditions is met. 

Signal Path

• The VSP control unit judges that the driving sound is necessary according to the following signals, and oper-

ates the driving sound. 

• When the VSP control unit judges that the driving sound is necessary, it transmits the following signal. 

Timing Chart

Operation condition

Vehicle speed

During ac-
celeration

1 km/h (0.6 MPH) or more

During de-
celeration

25 km/h (16 MPH) or less

READY to drive indicator lamp

ON

Selector lever

“D” Position

Operation stop condition

Vehicle speed

During accel-
eration

Higher than 30 km/h (19 MPH)

During decel-
eration

Less than 1 km/h (0.6 MPH)

READY to drive indicator lamp

OFF

Signal name

Signal path

READY to drive indicator lamp request signal

VCM 

 VSP control unit

Shift position signal

VCM 

 VSP control unit

Vehicle speed signal

Combination meter 

 VSP control unit

Signal name

Signal path

VSP speaker signal

VSP control unit 

 VSP speaker

JSMIA0470GB