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

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Seat Belt. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK VEHICLE TYPE

CHECK FOR DTC

READ VALUE USING INTELLIGENT TESTER (PASSENGER SIDE BUCKLE SWITCH)

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FRONT PASSENGER SIDE SEAT BELT WARNING LIGHT)

CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY ASSEMBLY - COMBINATION METER, BATTERY AND BODY GROUND)

CHECK MULTI-DISPLAY ASSEMBLY

CHECK HARNESS AND CONNECTOR (CLOCK - COMBINATION METER, BATTERY AND BODY GROUND)

CHECK CLOCK ASSEMBLY

CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT - COMBINATION METER AND BODY GROUND)

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

REPLACE FRONT SEAT INNER BELT ASSEMBLY (for Front Passenger Side)

CHECK FRONT PASSENGER SIDE SEAT BELT WARNING LIGHT

READ VALUE USING INTELLIGENT TESTER (PASSENGER SIDE BUCKLE SWITCH)

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FRONT PASSENGER SIDE SEAT BELT WARNING LIGHT)

CHECK HARNESS AND CONNECTOR (CLOCK - COMBINATION METER, BATTERY AND BODY GROUND)

CHECK CLOCK ASSEMBLY

INSPECT FRONT SEAT INNER BELT ASSEMBLY (for Front Passenger Side)

INSPECT FRONT SEPARATE TYPE SEAT CUSHION PAD

CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT - COMBINATION METER AND BODY GROUND)

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


DESCRIPTION

The combination meter detects the state of the front seat inner belt assembly (for Front Passenger Side) when the front passenger seat is occupied with the ignition switch ON. If the front passenger seat belt is not fastened, the front passenger side seat belt warning light on the multi-display assembly*1 or clock assembly*2 blinks. If the seat belt is fastened, the warning light goes off.
  1. *1: w/ Navigation System
  2. *2: w/o Navigation System

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Seat Belt.Seat Belt Tension Reducer System.Seat Belt Warning System Front Passenger Side Seat Belt Warning Light Malfunction


INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.CHECK VEHICLE TYPE

  1. Check the vehicle type.

    Result
    Result
    		Proceed to
    except Double Swing Out Type
    		A
    for Double Swing Out Type
    		B


B
Go to step 13
A


2.CHECK FOR DTC

  1. Check for DTCs.

    Result
    Result
    		Proceed to
    DTC is not output
    		A
    CAN communication system DTC is output (for LHD)
    		B
    CAN communication system DTC is output (for RHD)
    		C
    Airbag system DTC is output
    		D


B
Go to CAN COMMUNICATION SYSTEM (Click here)

C
Go to CAN COMMUNICATION SYSTEM (Click here)

D
Go to AIRBAG SYSTEM (Click here)
A


3.READ VALUE USING INTELLIGENT TESTER (PASSENGER SIDE BUCKLE SWITCH)

  1. Check the Data List for proper functioning of the front passenger side seat belt buckle switch.

    Combination Meter
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    P-Seatbelt Buckle SW
    		Front passenger side seat belt buckle signal / ON or OFF
    		ON: Front passenger side seat is occupied, front passenger side seat belt is fastened
    OFF: Front passenger side seat is occupied, front passenger side seat belt is unfastened
    		-
    OK:
    The display is as specified in the normal condition column.


NG
Go to step 9
OK


4.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FRONT PASSENGER SIDE SEAT BELT WARNING LIGHT)

  1. Operate the intelligent tester according to the steps on the display and select Active Test.

    Combination Meter
    Item
    		Test Part
    		Control Range
    		Diagnostic Note
    Front Passenger Side Seat Belt
    		Front passenger side seat belt warning light
    		ON or OFF
    		Confirm that the vehicle is stopped and the engine is idling.
    Result
    Result
    		Proceed to
    Front passenger side seat belt warning light condition cannot be switched by Active Test (w/ Navigation System)
    		A
    Front passenger side seat belt warning light condition cannot be switched by Active Test (w/o Navigation System)
    		B
    Front passenger side seat belt warning light condition can be switched by Active Test (w/ Multi-information Display)
    		C
    Front passenger side seat belt warning light condition can be switched by Active Test (w/o Multi-information Display)
    		D


B
Go to step 7

C
REPLACE COMBINATION METER ASSEMBLY (Click here)

D
REPLACE COMBINATION METER ASSEMBLY (Click here)
A


5.CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY ASSEMBLY - COMBINATION METER, BATTERY AND BODY GROUND)

  1. Disconnect the F79 multi-display assembly connectors.

  1. Disconnect the E7 combination meter assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    F79-9 (PBEW) - E7-22 (WRNP)
    		Always
    		Below 1 Ω
    F79-9 (PBEW) or E7-22 (WRNP) - Body ground
    		Always
    		10 kΩ or higher
    F79-13 (GND1) - Body ground
    		Always
    		Below 1 Ω

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    F79-23 (IG) - Body ground
    		Ignition switch ON
    		11 to 14 V


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


6.CHECK MULTI-DISPLAY ASSEMBLY


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Seat Belt.Seat Belt Tension Reducer System.Seat Belt Warning System Front Passenger Side Seat Belt Warning Light Malfunction

  1. Disconnect the F79 multi-display assembly connectors.

  1. Apply battery voltage to the terminals and check that the front passenger seat belt warning light illuminates.

    OK:
    Measurement Connection
    		Specified Condition
    Battery Positive (+) → 23 (IG)
    Battery negative (-) → 9 (PBEW)
    Battery negative (-) → 13 (GND1)
    		Front passenger side seat belt warning light on
    Text in Illustration
    *1
    		Component without harness connected
    (Multi-display Assembly)
    Result
    Result
    		Proceed to
    NG
    		A
    OK (w/ Multi-information Display)
    		B
    OK (w/o Multi-information Display)
    		C


B
REPLACE COMBINATION METER ASSEMBLY (Click here)

C
REPLACE COMBINATION METER ASSEMBLY (Click here)
A

REPLACE MULTI-DISPLAY ASSEMBLY (Click here)

7.CHECK HARNESS AND CONNECTOR (CLOCK - COMBINATION METER, BATTERY AND BODY GROUND)

  1. Disconnect the g1 clock assembly connector.

  1. Disconnect the E7 combination meter assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    g1-1 (E) - Body ground
    		Always
    		Below 1 Ω
    g1-8 (LAPL) - Body ground
    		Always
    		10 kΩ or higher
    g1-8 (LAPL) - E7-22 (WRNP)
    		Always
    		Below 1 Ω

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    g1-10 (IG+) - Body ground
    		Ignition switch ON
    		11 to 14 V


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


8.CHECK CLOCK ASSEMBLY


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Seat Belt.Seat Belt Tension Reducer System.Seat Belt Warning System Front Passenger Side Seat Belt Warning Light Malfunction

  1. Disconnect the g1 clock assembly connector.

  1. Apply battery voltage to the terminals and check that the front passenger seat belt warning light illuminates.

    OK:
    Measurement Connection
    		Specified Condition
    Battery Positive (+) → 10 (IG+)
    Battery negative (-) → 8 (LAPL)
    Battery negative (-) → 1 (E)
    		Front passenger seat belt warning light Illuminates
    Text in Illustration
    *1
    		Component without harness connected
    (Clock Assembly)
    Result
    Result
    		Proceed to
    NG
    		A
    OK (w/ Multi-information Display)
    		B
    OK (w/o Multi-information Display)
    		C


B
REPLACE COMBINATION METER ASSEMBLY (Click here)

C
REPLACE COMBINATION METER ASSEMBLY (Click here)
A

REPLACE CLOCK ASSEMBLY (Click here)

9.CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT - COMBINATION METER AND BODY GROUND)

  1. Disconnect the c7*1 or c22*2 front seat inner belt assembly (for Front Passenger Side) connector.

    1. *1: for LHD
    2. *2: for RHD

  1. Disconnect the E7 combination meter assembly connector.

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

    Standard Resistance:
    for LHD:
    Tester Connection
    		Condition
    		Specified Condition
    c7-3 - E7-7 (P/SB)
    		Always
    		Below 1 Ω
    c7-3 or E7-7 (P/SB) - Body ground
    		Always
    		10 kΩ or higher
    c7-4 - Body ground
    		Always
    		Below 1 Ω
    Standard Resistance:
    for LHD:
    Tester Connection
    		Condition
    		Specified Condition
    c22-3 - E7-7 (P/SB)
    		Always
    		Below 1 Ω
    c22-3 or E7-7 (P/SB) - Body ground
    		Always
    		10 kΩ or higher
    c22-4 - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


10.INSPECT FRONT SEPARATE TYPE SEAT CUSHION PAD (OCCUPANT DETECTION SENSOR)


    Land Cruiser. Urj200, 202 Grj200 Vdj200

  1. Remove the front separate type seat cushion pad.

    1. for Manual Seat: Click here
    2. for Power Seat: Click here
    3. for Bench Seat: Click here

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    1 - 3
    		More than 147 N (15 kgf, 33.0 lbf) applied to occupant detection sensor
    		Below 100 Ω
    Result
    Result
    		Proceed to
    OK
    		A
    NG (for Manual Seat)
    		B
    NG (for Power Seat)
    		C
    NG (for Bench Seat)
    		D


B
REPLACE FRONT SEPARATE TYPE SEAT CUSHION PAD (Click here)

C
REPLACE FRONT SEPARATE TYPE SEAT CUSHION PAD (Click here)

D
REPLACE FRONT SEPARATE TYPE SEAT CUSHION PAD (Click here)
A


11.REPLACE FRONT SEAT INNER BELT ASSEMBLY (for Front Passenger Side)

  1. Temporarily replace the front seat inner belt assembly RH*1 or LH*2 with a new one.

    1. *1: for LHD
    2. *2: for RHD
    1. except Bench Seat: Click here
    2. for Bench Seat: Click here

NEXT


12.CHECK FRONT PASSENGER SIDE SEAT BELT WARNING LIGHT

  1. Check the front passenger side seat belt warning light function (Click here).

    OK:
    Front passenger side seat belt warning light operates normally.
    Result
    Result
    		Proceed to
    OK
    		A
    NG (w/ Multi-information Display)
    		B
    NG (w/o Multi-information Display)
    		C


B
REPLACE COMBINATION METER ASSEMBLY (Click here)

C
REPLACE COMBINATION METER ASSEMBLY (Click here)
A

END (FRONT SEAT INNER BELT ASSEMBLY IS DEFECTIVE)

13.READ VALUE USING INTELLIGENT TESTER (PASSENGER SIDE BUCKLE SWITCH)

  1. Check the Data List for proper functioning of the front passenger side seat belt buckle switch.

    Combination Meter
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    P-Seatbelt Buckle SW
    		Front passenger side seat belt buckle signal / ON or OFF
    		ON: Front passenger side seat is occupied, front passenger side seat belt is fastened
    OFF: Front passenger side seat is occupied, front passenger side seat belt is unfastened
    		-
    OK:
    The display is as specified in the normal condition column.


NG
Go to step 17
OK


14.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FRONT PASSENGER SIDE SEAT BELT WARNING LIGHT)

  1. Operate the intelligent tester according to the steps on the display and select Active Test.

    Combination Meter
    Item
    		Test Part
    		Control Range
    		Diagnostic Note
    Front Passenger Side Seat Belt
    		Front passenger side seat belt warning light
    		ON or OFF
    		Confirm that the vehicle is stopped and the engine is idling.
    OK:
    Passenger side seat belt warning light condition can be switched by Active Test.


NG
Go to step 15
OK

REPLACE COMBINATION METER ASSEMBLY (Click here)

15.CHECK HARNESS AND CONNECTOR (CLOCK - COMBINATION METER, BATTERY AND BODY GROUND)

  1. Disconnect the g1 clock assembly connector.

  1. Disconnect the E7 combination meter assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    g1-1 (E) - Body ground
    		Always
    		Below 1 Ω
    g1-8 (LAPL) - E7-22 (WRNP)
    		Always
    		Below 1 Ω
    g1-8 (LAPL) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


16.CHECK CLOCK ASSEMBLY


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Seat Belt.Seat Belt Tension Reducer System.Seat Belt Warning System Front Passenger Side Seat Belt Warning Light Malfunction

  1. Disconnect the g1 clock assembly connector.

  1. Apply battery voltage to the terminals and check that the front passenger seat belt warning light illuminates.

    OK:
    Measurement Connection
    		Specified Condition
    Battery Positive (+) → 10 (IG+)
    Battery negative (-) → 8 (LAPL)
    Battery negative (-) → 1 (E)
    		Front passenger seat belt warning light Illuminates
    Text in Illustration
    *1
    		Component without harness connected
    (Clock Assembly)


NG
REPLACE CLOCK ASSEMBLY (Click here)
OK

REPLACE COMBINATION METER ASSEMBLY (Click here)

17.INSPECT FRONT SEAT INNER BELT ASSEMBLY (for Front Passenger Side)


    Land Cruiser. Urj200, 202 Grj200 Vdj200

  1. Remove the front seat inner belt assembly (for Front Passenger Side).

    1. except Bench Seat: Click here
    2. for Bench Seat: Click here

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    13 - 9
    		Seat belt unfastened (buckle switch is off)
    		Below 1 Ω
    Seat belt fastened (buckle switch is on)
    		10 kΩ or higher
    Result
    Result
    		Proceed to
    OK
    		A
    NG (except Bench Seat)
    		B
    NG (for Bench seat)
    		C


B
REPLACE FRONT SEAT INNER BELT ASSEMBLY (for Front Passenger Side) (Click here)

C
REPLACE FRONT SEAT INNER BELT ASSEMBLY (for Front Passenger Side) (Click here)
A


18.INSPECT FRONT SEPARATE TYPE SEAT CUSHION PAD


    Land Cruiser. Urj200, 202 Grj200 Vdj200

  1. Remove the front separate type seat cushion pad.

    1. except Bench Seat: Click here
    2. for Bench Seat: Click here

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    1 - 3
    		More than 147 N (15 kgf, 33.0 lbf) applied to occupant detection sensor
    		Below 100 Ω
    Result
    Result
    		Proceed to
    OK
    		A
    NG (except Bench Seat)
    		B
    NG (for Bench Seat)
    		C


B
REPLACE FRONT SEPARATE TYPE SEAT CUSHION PAD (Click here)

C
REPLACE FRONT SEPARATE TYPE SEAT CUSHION PAD (Click here)
A


19.CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT - COMBINATION METER AND BODY GROUND)

  1. Disconnect the L49*1 or K43*2 front seat inner belt assembly (for Front Passenger Side) connector.

  1. Disconnect the E7 combination meter assembly connector.

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

    Standard Resistance:
    for LHD:
    Tester Connection
    		Condition
    		Specified Condition
    L49-13 - E7-7 (P/SB)
    		Always
    		Below 1 Ω
    L49-13 or E7-7 (P/SB) - Body ground
    		Always
    		10 kΩ or higher
    L49-9 - Body ground
    		Always
    		Below 1 Ω
    for RHD:
    Tester Connection
    		Condition
    		Specified Condition
    K43-13 - E7-7 (P/SB)
    		Always
    		Below 1 Ω
    K43-13 or E7-7 (P/SB) - Body ground
    		Always
    		10 kΩ or higher
    K43-9 - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE COMBINATION METER ASSEMBLY (Click here)