Nissan Pathfinder. Manual — part 1197
WCS
COMPONENT PARTS
WCS-5
< SYSTEM DESCRIPTION >
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Component Description
INFOID:0000000009174307
Unit
Description
Combination switch (lighting
and turn signal switch)
Transmits the lighting switch signal to the BCM.
Combination meter
• Receives a buzzer output signal from the BCM with CAN communication line and sounds the
buzzer.
• Receives the seat belt buckle switch signal from the seat belt buckle switch (driver seat) and
transmits it to the BCM via CAN communication.
• Judges whether the parking brake is released using the vehicle speed signal and the parking
brake switch signal, and sounds the buzzer if necessary.
BCM
Based on the signals received from various units and switches, transmits the buzzer output signal
to the combination meter via CAN communication.
Front door switch LH
Transmits the front door switch LH signal to the BCM.
Seat belt buckle switch (driver
seat)
Transmits the seat belt buckle switch (driver seat) signal to the combination meter.
Parking brake switch
Transmits the parking brake switch signal to the combination meter.
ABS actuator and electric unit
(control unit)
Transmits the vehicle speed signal to the combination meter via CAN communication.
WCS-6
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
WARNING CHIME SYSTEM
WARNING CHIME SYSTEM : System Diagram
INFOID:0000000009174308
WARNING CHIME SYSTEM : System Description
INFOID:0000000009174309
DESCRIPTION
• The buzzer for the warning chime system is installed in the combination meter.
• The buzzer sounds when the combination meter receives a buzzer output signal from the BCM.
• The BCM receives signals from various units and transmits a buzzer output signal to the combination meter
with CAN communication line if it judges that the warning buzzer should be activated.
LIGHT REMINDER WARNING CHIME
LIGHT REMINDER WARNING CHIME : System Diagram
INFOID:0000000009174310
LIGHT REMINDER WARNING CHIME : System Description
INFOID:0000000009174311
DESCRIPTION
With the ignition switch in the OFF or ACC position, driver door open, and lighting switch in parking or head-
lamp position, the light warning chime will sound.
• BCM detects the ignition switch in the OFF or ACC position, the front door switch LH ON, and the lighting
switch in parking or headlamp position, and then transmits the buzzer output signal (light reminder warning
chime) to the combination meter with CAN communication line.
• When the combination meter receives the buzzer output signal (light reminder warning chime), it sounds the
buzzer.
WARNING OPERATION CONDITIONS
If all of the following conditions are fulfilled:
• Lighting switch is in parking or headlamp position
• Ignition switch is in OFF or ACC
• Front door switch LH is ON
AWNIA2541GB
AWNIA2539GB
WCS
SYSTEM
WCS-7
< SYSTEM DESCRIPTION >
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WARNING CANCEL CONDITIONS
Warning is canceled if any of the following conditions is fulfilled:
• Lighting switch OFF
• Ignition switch ON
• Front door switch LH is OFF
SEAT BELT WARNING CHIME
SEAT BELT WARNING CHIME : System Diagram
INFOID:0000000009174312
SEAT BELT WARNING CHIME : System Description
INFOID:0000000009174313
DESCRIPTION
With the ignition switch turned ON and driver seat belt unfastened, the seat belt warning chime will sound for
approximately 6 seconds.
• BCM receives seat belt buckle switch (driver seat) signal from combination meter with CAN communication
line.
• BCM detects the ignition switch turned ON and the seat belt buckle switch (driver seat) is ON, and then
transmits buzzer output signal (seat belt warning chime) to combination meter with CAN communication line.
• When the combination meter receives the buzzer output signal (seat belt warning chime), it sounds the
buzzer.
WARNING OPERATION CONDITIONS
If all of the following conditions are fulfilled:
• Ignition switch OFF
→ON
• Seat belt buckle switch (driver seat) is ON (seat belt not fastened).
WARNING CANCEL CONDITIONS
Cancels the warning if any of the following conditions is fulfilled:
• Ignition switch OFF
• Seat belt buckle switch (driver seat) is OFF (seat belt fastened).
PARKING BRAKE RELEASE WARNING CHIME
PARKING BRAKE RELEASE WARNING CHIME : System Diagram
INFOID:0000000009174314
PARKING BRAKE RELEASE WARNING CHIME : System Description
INFOID:0000000009174315
DESCRIPTION
AWNIA2542GB
AWNIA2578GB
WCS-8
< SYSTEM DESCRIPTION >
SYSTEM
• The combination meter receives the vehicle speed signal from the ABS actuator and electric unit (control
unit) via CAN communication line.
• The combination meter judges whether the parking brake is released using the parking brake switch signal
from the parking brake switch, and sounds the warning buzzer if necessary.
WARNING OPERATION CONDITIONS
If all of the following conditions are fulfilled:
• Vehicle speed is approximately 4 MPH (7 km/h) or higher.
• Parking brake switch ON
WARNING CANCEL CONDITIONS
Warning is canceled if any of the following conditions are fulfilled:
• Vehicle speed is approximately 2 MPH (3 km/h) or less.
• Parking brake switch OFF
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