Nissan Maxima Service and Repair Manual: Warning chime system

WARNING CHIME SYSTEM : System Diagram

WARNING CHIME SYSTEM : System Description

COMBINATION METER

• The buzzer (1) for warning chime system is installed in the combination meter.
• The buzzer sounds when the combination meter receives a buzzer output signal from each unit.

BCM

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.

WARNING CHIME SYSTEM : Component Parts Location

1. A. Combination meter M24 B. Combination switch (lighting and turn signal switch) M28
2. A. Seat belt buckle switch LH B202 B. Front door switch LH B8
3. BCM M16, M17, M18, M19 (view with instrument panel removed)
4. ABS actuator and electric unit (control unit) E26
5. Parking brake switch E35 [view with instrument panel lower cover (LH) removed]

WARNING CHIME SYSTEM : Component Description

LIGHT REMINDER WARNING CHIME

LIGHT REMINDER WARNING CHIME : System Diagram

LIGHT REMINDER WARNING CHIME : System Description

DESCRIPTION

With ignition switch in OFF or ACC position, driver door open, and lighting switch in 1ST or 2ND position, the light warning chime will sound.

• BCM detects ignition switch in OFF or ACC position, front door switch LH ON, and lighting switch in 1ST or 2ND position and then transmits buzzer output signal (light reminder warning chime) to combination meter with CAN communication line.
• When combination meter receives 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 at 1st or 2nd position
• Ignition switch is at OFF or ACC
• Front door switch LH is ON

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

LIGHT REMINDER WARNING CHIME : Component Parts Location

1. A. Combination meter M24 B. Combination switch (lighting and turn signal switch) M28
2. A. Seat belt buckle switch LH B202 B. Front door switch LH B8
3. BCM M16, M17, M18, M19 (view with instrument panel removed)
4. ABS actuator and electric unit (control unit) E26
5. Parking brake switch E35 [view with instrument panel lower cover (LH) removed]

LIGHT REMINDER WARNING CHIME : Component Description

SEAT BELT WARNING CHIME

SEAT BELT WARNING CHIME : System Diagram

SEAT BELT WARNING CHIME : System Description

DESCRIPTION

With ignition switch turned ON and driver seat belt unfastened, seat belt warning chime will sound for approximately 6 seconds.

• BCM receives seat belt buckle switch LH signal from combination meter with CAN communication line.
• BCM detects ignition switch turned ON and seat belt buckle switch LH ON and then transmits buzzer output signal (seat belt warning chime) to combination meter with CAN communication line.
• When combination meter receives 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 buckle switch LH is ON (driver seat belt not fastened)

WARNING CANCEL CONDITIONS

Cancels the warning if any of the following conditions is fulfilled.

• Ignition switch OFF
• Seat buckle switch LH is OFF (driver seat belt fastened)
• 90 seconds have passed since the start of the warning

SEAT BELT WARNING CHIME : Component Parts Location

1. A. Combination meter M24 B. Combination switch (lighting and turn signal switch) M28
2. A. Seat belt buckle switch LH B202 B. Front door switch LH B8
3. BCM M16, M17, M18, M19 (view with instrument panel removed)
4. ABS actuator and electric unit (control unit) E26
5. Parking brake switch E35 [view with instrument panel lower cover (LH) removed]

SEAT BELT WARNING CHIME : Component Description

PARKING BRAKE RELEASE WARNING CHIME

PARKING BRAKE RELEASE WARNING CHIME : System Diagram

PARKING BRAKE RELEASE WARNING CHIME : System Description

DESCRIPTION

• 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 7 km/h (4.3 MPH) or higher
• Parking brake switch ON

WARNING CANCEL CONDITIONS

Warning is canceled if any of the following conditions is fulfilled.

• Vehicle speed is approximately 3 km/h (1.9 MPH) or less
• Parking brake switch OFF

PARKING BRAKE RELEASE WARNING CHIME : Component Parts Location

1. A. Combination meter M24 B. Combination switch (lighting and turn signal switch) M28
2. A. Seat belt buckle switch LH B202 B. Front door switch LH B8
3. BCM M16, M17, M18, M19 (view with instrument panel removed)
4. ABS actuator and electric unit (control unit) E26
5. Parking brake switch E35 [view with instrument panel lower cover (LH) removed]

PARKING BRAKE RELEASE WARNING CHIME : Component Description