Seat Belt Warning System Front Passenger Side Seat Belt Warning Light Malfunction

Restraints. Camry. Acv40 Gsv40
Seat Belt. Camry. Acv40 Gsv40

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK WIRE HARNESS (BATTERY POSITIVE AND BODY GROUND)

CHECK CLOCK ASSEMBLY

CHECK WIRE HARNESS (CLOCK ASSEMBLY - COMBINATION METER ASSEMBLY)

INSPECT OCCUPANT DETECTION SENSOR (SEPARATE TYPE FRONT SEAT CUSHION COVER)

CHECK WIRE HARNESS (COMBINATION METER ASSEMBLY - FRONT SEAT INNER BELT ASSEMBLY)

REPLACE FRONT SEAT INNER BELT ASSEMBLY (FRONT PASSENGER SIDE)

SEAT BELT WARNING SYSTEM - Front Passenger Side Seat Belt Warning Light Malfunction


DESCRIPTION

When the passenger seat belt is not fastened with the ignition switch in the ON position and the passenger seat occupied, check that the passenger seat belt warning light on the clock display blinks. The occupant detection sensor detects if the passenger seat is occupied and sends signals to the meter assembly. The inner belt detects the passenger seat belt condition and sends signals to the meter assembly. After receiving the signals from the occupant detection sensor and inner belt, the meter assembly sends signals to the clock assembly to request the passenger seat belt warning light to blink or go off.

WIRING DIAGRAM


Camry. Acv40 Gsv40.Seat Belt.Occupant Detection Sensor (For Manual Seat).Seat Belt Warning System Front Passenger Side Seat Belt Warning Light Malfunction


INSPECTION PROCEDURE

1.CHECK WIRE HARNESS (BATTERY POSITIVE AND BODY GROUND)


    Camry. Acv40 Gsv40.Seat Belt.Occupant Detection Sensor (For Manual Seat).Seat Belt Warning System Front Passenger Side Seat Belt Warning Light Malfunction

  1. Disconnect the clock assembly connector.

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

    Standard voltage:
    Tester Connection
    		Condition
    		Specified Condition
    F3-3 (IG) - Body ground
    		Ignition switch ON
    		10 to 14 V
    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    F3-19 (GND1) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE GAUGE NO. 1 FUSE, HARNESS OR CONNECTOR
OK


2.CHECK CLOCK ASSEMBLY


    Camry. Acv40 Gsv40.Seat Belt.Occupant Detection Sensor (For Manual Seat).Seat Belt Warning System Front Passenger Side Seat Belt Warning Light Malfunction

  1. Disconnect the clock assembly connector.

  1. Apply battery voltage to the connector according to the table below.

    Standard:
    Condition
    		Specified Condition
    Battery positive (+) → Terminal 3 (IG)
    Battery negative (-) → Terminal 10 (PBEW), 19 (GND1)
    		Lights up (Seat belt warning light)


NG
REPLACE CLOCK ASSEMBLY
OK


3.CHECK WIRE HARNESS (CLOCK ASSEMBLY - COMBINATION METER ASSEMBLY)


    Camry. Acv40 Gsv40.Seat Belt.Occupant Detection Sensor (For Manual Seat).Seat Belt Warning System Front Passenger Side Seat Belt Warning Light Malfunction

  1. Disconnect the combination meter assembly and clock assembly connectors.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    F1-9 (P/SB) - F3-10 (PBEW)
    		Always
    		Below 1 Ω
    F1-9 (P/SB) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.INSPECT OCCUPANT DETECTION SENSOR (SEPARATE TYPE FRONT SEAT CUSHION COVER)


    Camry. Acv40 Gsv40.Seat Belt.Occupant Detection Sensor (For Manual Seat).Seat Belt Warning System Front Passenger Side Seat Belt Warning Light Malfunction

  1. Disconnect the occupant detection sensor connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A-1 - A-3
    		The passenger seat is occupied
    		Below 100 Ω
    A-1 - A-3
    		The passenger seat is not occupied
    		Below 1 MΩ


NG
REPLACE SEPARATE TYPE FRONT SEAT CUSHION COVER (OCCUPANT DETECTION SENSOR)
OK


5.CHECK WIRE HARNESS (COMBINATION METER ASSEMBLY - FRONT SEAT INNER BELT ASSEMBLY)


    Camry. Acv40 Gsv40.Seat Belt.Occupant Detection Sensor (For Manual Seat).Seat Belt Warning System Front Passenger Side Seat Belt Warning Light Malfunction

  1. Disconnect the combination meter assembly and front seat inner belt assembly connectors.

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

    Standard resistance:
    LHD models (without power seat):
    Tester Connection
    		Condition
    		Specified Condition
    F2-8 (PBKL) - O22-1
    		Always
    		Below 1 Ω
    F2-8 - Body ground
    		Always
    		10 kΩ or higher
    O22-3 - Body ground
    		Always
    		Below 1 Ω
    LHD models (with power seat):
    Tester Connection
    		Condition
    		Specified Condition
    F2-8 (PBKL) - T12-1
    		Always
    		Below 1 Ω
    F2-8 - Body ground
    		Always
    		10 kΩ or higher
    T12-3 - Body ground
    		Always
    		Below 1 Ω
    RHD models (without power seat):
    Tester Connection
    		Condition
    		Specified Condition
    F2-8 (PBKL) - N30-1
    		Always
    		Below 1 Ω
    F2-8 - Body ground
    		Always
    		10 kΩ or higher
    N30-3 - Body ground
    		Always
    		Below 1 Ω
    RHD models (with power seat):
    Tester Connection
    		Condition
    		Specified Condition
    F2-8 (PBKL) - U9-1
    		Always
    		Below 1 Ω
    F2-8 - Body ground
    		Always
    		10 kΩ or higher
    U9-3 - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


6.REPLACE FRONT SEAT INNER BELT ASSEMBLY (FRONT PASSENGER SIDE)

  1. Replace the front seat inner belt assembly (front passenger side)

OK:
Seat belt warning operation returns to normal.


NG
REPLACE COMBINATION METER ASSEMBLY
OK

END