Nissan Altima HL32 Hybrid. Manual - part 1089

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< FUNCTION DIAGNOSIS >

WARNING CHIME SYSTEM

PARKING BRAKE RELEASE WARNING CHIME
PARKING BRAKE RELEASE WARNING CHIME : System Diagram

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PARKING BRAKE RELEASE WARNING CHIME : System Description

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DESCRIPTION

• The brake ECU sends a vehicle speed signal to the hybrid vehicle control ECU via CAN communication. The

hybrid vehicle control ECU then sends the vehicle speed signal to the combination meter via CAN communi-

cation.

• 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

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 LH

Transmits seat belt buckle switch signal to combination meter.

Unit

Description

AWNIA0949GB

WCS

WARNING CHIME SYSTEM

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PARKING BRAKE RELEASE WARNING CHIME : Component Parts Location

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PARKING BRAKE RELEASE WARNING CHIME : Component Description

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1.

Combination meter M24

2.

Combination switch (lighting switch) 
M28

3.

Brake ECU E61

4.

BCM M16, M17, M18, M19 (view with 
instrument panel removed)

5.

Hybrid vehicle control ECU E66

6.

Seat belt buckle switch LH B202

7.

Front door switch LH B8

8.

Parking brake switch E35 (view with 
instrument lower cover LH removed)

Unit

Description

Combination meter

• Judges whether the parking brake is released using the parking brake switch signal from the 

parking brake switch, and sounds the buzzer if necessary.

• Receives a vehicle speed signal from hybrid vehicle control ECU.

Hybrid vehicle control ECU

• Receives vehicle speed signal from brake ECU with CAN communication line.
• Transmits the vehicle speed signal to combination meter with CAN communication line.

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< FUNCTION DIAGNOSIS >

WARNING CHIME SYSTEM

Brake ECU

Transmits the vehicle speed signal to the hybrid vehicle control ECU with CAN communication 
line.

Parking brake switch

Transmits parking brake switch signal to the combination meter.

Unit

Description

WCS

DIAGNOSIS SYSTEM (METER)

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< FUNCTION DIAGNOSIS >

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DIAGNOSIS SYSTEM (METER)

Diagnosis Description

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SELF-DIAGNOSIS MODE

• Odo/trip meter and information display segment operation can be checked in self-diagnosis mode.

• Meters/gauges can be checked in self-diagnosis mode.

OPERATION PROCEDURE

1. Turn the ignition switch OFF.
2. While pushing the odo/trip meter switch, turn the ignition switch ON again.
3. Push the odo/trip meter switch at least 3 times within 7 seconds after the ignition switch is turned ON.
4. The unified meter control unit is turned to self-diagnosis mode.

• All the segments on the odo/trip meter illuminate.

• Dots in all segments of information display LCD (1) flash alter-

nately.

NOTE:

If any of the segments are not displayed, replace the combina-

tion meter. Refer to 

MWI-135, "Removal and Installation"

.

5. Push the odo/trip meter switch. Each meter/gauge should indicate as shown in the figure.

CONSULT-III Function (METER/M&A)

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CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.

SKIB1206J

JSNIA0020GB

AWNIA0072GB