SEAT BELT WARNING SYSTEM > Seat Belt Warning Light for Passenger Seat does not Operate

for Preparation Click here


DESCRIPTION

w/o Navigation system:
When the ignition switch is turned to the ON position, the occupant detection sensor transmits front seat inner belt status to the center integration panel via the combination meter. If the front passenger seat belt is not fastened when the seat is occupied, the warning light on the center integration panel blinks. If the seat belt is fastened, the warning light will turn off.
w/ Navigation system:
When the ignition switch is turned to the ON position, the occupant detection sensor transmits front seat inner belt status to the multi-display via the combination meter. If the front passenger seat belt is not fastened when the seat is occupied, the warning light on the multi-display blinks. If the seat belt is fastened, the warning light will turn off.

WIRING DIAGRAM


B114158E01


INSPECTION PROCEDURE

1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER

  1. Operate the intelligent tester according to the steps on the display and select "ACTIVE TEST".


COMBINATION METER:

Item
Test Details
Diagnostic Note
P-BELT REMIND
P-SEAT BELT indicator light (OFF/ON)
-

OK:
Switch condition (ON/OFF) can be switched by "ACTIVE TEST".



NG
GO TO AIRBAG SYSTEM
OK


2.SYSTEM CHECK

  1. System check


w/o Navigation system
B
w/ Navigation system
A


B
Go to step 7
A


3.INSPECT MULTI-DISPLAY


    B111225E03

  1. Disconnect the M1 connector.

  1. Measure the voltage according to the value(s) in the table below.

    Standard voltage:
    Tester Connection
    		Condition
    		Specified Condition
    M1-10 (IG+) - Body ground
    		Ignition switch ON
    		10 to 14 V
    M1-21 (PBEW) - Body ground
    		Ignition switch ON, sit on the front passenger seat, seat belt warning light OFF→ Blinks
    		10 to 14 V → Below 1 V

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    M1-3 (GND) - Body ground
    		Always
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.INSPECT COMBINATION METER ASSEMBLY


    B114160E01

  1. Disconnect the C9 connector.

  1. Measure the resistance according to the value(s) in the table below.

Standard resistance:
Tester Connection
Condition
Specified Condition
C9-20 (P-SEAT) - Body ground
Ignition switch ON, sit on the front passenger seat, seat belt is unfastened → Fastened
10 kΩ or higher → Below 1 Ω



NG
Go to step 6
OK


5.CHECK WIRE HARNESS (COMBINATION METER ASSEMBLY - MULTI-DISPLAY)


    B114159E01

  1. Disconnect the C9 and M1 connectors.

  1. Measure the resistance according to the value(s) in the table below.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    C9-22 (P SEAT BELT) - M1-21 (PBEW)
    		Always
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE COMBINATION METER ASSEMBLY 

6.CHECK WIRE HARNESS (COMBINATION METER ASSEMBLY - OCCUPANT DETECTION SENSOR)


    B114161E02

  1. Disconnect the C9 and B16 connectors.

  1. Measure the resistance according to the value(s) in the table below.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    C9-20 (P-SEAT) - B16-1
    		Always
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE OCCUPANT DETECTION SENSOR 

7.CHECK INTEGRATION CONTROL & PANEL


    B115739E01

  1. Disconnect the C4 connector.

  1. Measure the voltage and resistance according to the value(s) in the table below.

    Standard voltage:
    Tester Connection
    		Condition
    		Specified Condition
    C4-9 (IG) - Body ground
    		Ignition switch ON
    		10 to 14 V

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    C4-7 (GND) - Body ground
    		Always
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


8.CHECK WIRE HARNESS (COMBINATION METER ASSEMBLY - OCCUPANT DETECTION SENSOR)


    B114161E02

  1. Disconnect the C9 and B16 connectors.

  1. Measure the resistance according to the value(s) in the table below.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    C9-20 (P-SEAT) - B16-1
    		Always
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

GO TO METER/GAUGE SYSTEM