Nissan Teana J32. Manual - part 1234

WCS

DIAGNOSIS AND REPAIR WORKFLOW

WCS-3

< BASIC INSPECTION >

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BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

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OVERALL SEQUENCE

DETAILED FLOW

1.

OBTAIN INFORMATION ABOUT SYMPTOM

Interview the customer to obtain as much information as possible about the conditions and environment under
which the malfunction occurred.

>> GO TO 2.

2.

CHECK SYMPTOM

• Check the symptom based on the information obtained from the customer.
• Check if any other malfunctions are present.

>> GO TO 3.

3.

CHECK CONSULT-III SELF-DIAGNOSIS RESULTS

Connect CONSULT-III and perform self-diagnosis. Refer to 

WCS-12, "CONSULT-III Function (METER/M&A)"

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JSNIA0456GB

WCS-4

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORKFLOW

Are self-diagnosis results normal?

YES

>> GO TO 4.

NO

>> GO TO 5.

4.

NARROW DOWN MALFUNCTIONING PARTS BY SYMPTOM DIAGNOSIS

Perform symptom diagnosis and narrow down the malfunctioning parts.

>> GO TO 5.

5.

REPAIR OR REPLACE MALFUNCTIONING PARTS

Repair or replace malfunctioning parts.
NOTE:
If DTC is displayed, erase DTC after repairing or replacing malfunctioning parts.

>> GO TO 6.

6.

FINAL CHECK

Check that the warning buzzer in the combination meter operates normally.

Does it operate normally?

YES

>> INSPECTION END

NO

>> GO TO 1.

WCS

WARNING CHIME SYSTEM

WCS-5

< FUNCTION DIAGNOSIS >

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FUNCTION DIAGNOSIS

WARNING CHIME SYSTEM

WARNING CHIME SYSTEM

WARNING CHIME SYSTEM : System Diagram

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WARNING CHIME SYSTEM : System Description

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COMBINATION METER

• The buzzer (1) for the warning chime system is integrated in the

combination meter.

• The combination meter sounds the alarm buzzer installed in the

combination meter when receiving the buzzer output signal trans-
mitted from each unit. 

BCM

BCM receives signals from various units and transmits a buzzer output signal to the combination meter via
CAN communication if it judges that the warning buzzer should be activated.

BCM warning function list

NOTE:
Parking brake release warning chime is detected by combination meter.

JPNIA1017GB

JPNIA1010ZZ

Warning functions

Signal name

Light reminder warning chime

• Ignition switch signal
• Lighting switch position signal
• Door switch signal (driver side)

WCS-6

< FUNCTION DIAGNOSIS >

WARNING CHIME SYSTEM

WARNING CHIME SYSTEM : Component Parts Location

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WARNING CHIME SYSTEM : Component Description

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LIGHT REMINDER WARNING CHIME

1.

Front door switch (driver side)

2.

Combination switch
(Lighting switch)

3.

Parking brake switch

4.

BCM

5.

Combination meter

A.

Behind the combination meter

JPNIA1026ZZ

Unit

Description

Combination meter

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

buzzer.

• Judges whether the parking brake is released from the vehicle speed signal received from the 

ABS actuator and electric unit (control unit) with CAN communication line and the parking 
brake switch signal from the parking brake switch, and sounds the buzzer if necessary. 

BCM

Transmits signals provided by various units to the combination meter with CAN communication 
line.

ABS actuator and electric unit 
(control unit)

Transmits the vehicle speed signal to combination meter with CAN communication line.

Combination switch
(Lighting switch)

Transmits the lighting switch position signal to BCM.

Front door switch
(driver side)

Transmits the door switch signal to BCM.

Parking brake switch

Refer to 

MWI-52, "Description"

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