Lighting System Stop Light Circuit

Vehicle Exterior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Lighting (Ext). Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (STOP LIGHT SWITCH)

CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY - BATTERY AND BODY GROUND)

CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY - STOP LIGHT SWITCH)

CHECK VEHICLE TYPE

INSPECT FUSE (ECU-IG No.2 FUSE)

INSPECT BRAKE LIGHT RELAY (BRK LP RELAY)

CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY - BRAKE LIGHT RELAY)

CHECK HARNESS AND CONNECTOR (BRAKE LIGHT RELAY - BATTERY)

CHECK HARNESS AND CONNECTOR (BRAKE LIGHT RELAY - SKID CONTROL ECU)

CHECK VEHICLE TYPE

CHECK HARNESS AND CONNECTOR (BRAKE LIGHT RELAY - STOP LIGHT AND BODY GROUND)

CHECK STOP LIGHT CONTROL RELAY ASSEMBLY

CHECK HARNESS AND CONNECTOR (BRAKE LIGHT RELAY - STOP LIGHT AND BODY GROUND)

CHECK STOP LIGHT CONTROL RELAY ASSEMBLY

CHECK VEHICLE TYPE

CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY - STOP LIGHT AND BODY GROUND)

CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY - STOP LIGHT AND BODY GROUND)

INSPECT FUSE (STOP FUSE)

INSPECT STOP LIGHT SWITCH

CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH - BODY GROUND)

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - STOP LIGHT SWITCH AND BATTERY)

LIGHTING SYSTEM - Stop Light Circuit


DESCRIPTION

When the stop light switch is turned on, current flows to the stop lights to illuminate them.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit


Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit


INSPECTION PROCEDURE

1.READ VALUE USING INTELLIGENT TESTER (STOP LIGHT SWITCH)

  1. Operate the intelligent tester according to the display and select the "Data List".

    Main Body
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Stop Light SW
    		Stop light switch / ON or OFF
    		ON: Brake pedal depressed
    OFF: Brake pedal released
    		-
OK:
On the intelligent tester screen, each item changes between ON and OFF according to above chart


NG
Go to step 18
OK


2.CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY - BATTERY AND BODY GROUND)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

  1. Disconnect the A39 relay connector.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    A39-6 (+B) - Body ground
    		Always
    		11 to 14 V

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A39-4 (GND) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY - STOP LIGHT SWITCH)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

  1. Disconnect the A30 stop light switch connector.

  1. Disconnect the A39 relay connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A30-1 - A39-2 (STP)
    		Always
    		Below 1 Ω
    A30-1 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.CHECK VEHICLE TYPE

  1. Check the vehicle type.

    Result
    Result
    		Proceed to
    w/ VSC
    		A
    w/o VSC
    		B


B
Go to step 15
A


5.INSPECT FUSE (ECU-IG No.2 FUSE)

  1. Remove the ECU-IG No.2 fuse from the main body ECU.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    ECU-IG No.2 fuse
    		Always
    		Below 1 Ω


NG
REPLACE FUSE
OK


6.INSPECT BRAKE LIGHT RELAY (BRK LP RELAY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

  1. Remove the brake light relay from the engine room relay block.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    3 - 5
    		Battery voltage not applied to terminals 1 and 2
    		10 kΩ or higher
    Battery voltage applied to terminals 1 and 2
    		Below 1 Ω
    3 - 4
    		Battery voltage not applied to terminals 1 and 2
    		Below 1 Ω
    Battery voltage applied to terminals 1 and 2
    		10 kΩ or higher


NG
REPLACE BRAKE LIGHT RELAY (BRK LP RELAY) (Click here)
OK


7.CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY - BRAKE LIGHT RELAY)


  1. Remove the brake light relay from the engine room relay block.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

  1. Disconnect the A39 stop light control relay connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A39-8 (OUT) - Brake light relay terminal 4
    		Always
    		Below 1 Ω
    A39-6 (+B) - Brake light relay terminal 5
    A39-8 (OUT) - Body ground
    		Always
    		10 kΩ or higher
    A39-6 (+B) - Body ground


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


8.CHECK HARNESS AND CONNECTOR (BRAKE LIGHT RELAY - BATTERY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

  1. Remove the brake light relay from the engine room relay block.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    Brake light relay terminal 1 - Body ground
    		Ignition switch ON
    		11 to 14 V
    Ignition switch off
    		Below 1 V


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


9.CHECK HARNESS AND CONNECTOR (BRAKE LIGHT RELAY - SKID CONTROL ECU)


  1. Remove the brake light relay from the engine room relay block.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

  1. Disconnect the A24 ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    Brake light relay terminal 2 - A24-16 (STPO)
    		Always
    		Below 1 Ω
    Brake light relay terminal 2 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


10.CHECK VEHICLE TYPE

  1. Check the vehicle type.

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


B
Go to step 13
A


11.CHECK HARNESS AND CONNECTOR (BRAKE LIGHT RELAY - STOP LIGHT AND BODY GROUND)


  1. Remove the brake light relay from the engine room relay block.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

  1. for LH:

    1. Disconnect the n1 light connector.

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      Brake light relay terminal 3 - n1-2 (STP)
      		Always
      		Below 1 Ω
      n1-4 (E) - Body ground
      n1-2 (STP) - Body ground
      		Always
      		10 kΩ or higher

  1. for RH:

    1. Disconnect the Y1 light connector.

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      Brake light relay terminal 3 - Y1-2 (STP)
      		Always
      		Below 1 Ω
      Y1-6 (E) - Body ground
      Y1-2 (STP) - Body ground
      		Always
      		10 kΩ or higher


  1. Disconnect the T1 light connector.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    Brake light relay terminal 3 - T1-1 (B)
    		Always
    		Below 1 Ω
    T1-2 (E) - Body ground
    T1-1 (B) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


12.CHECK STOP LIGHT CONTROL RELAY ASSEMBLY

  1. Temporarily replace the stop light control relay with a new or normally functioning one.

  1. Check the stop light operation.

    OK:
    Stop light operation is normal.


NG
REPLACE SKID CONTROL ECU (Click here)
OK

REPLACE STOP LIGHT CONTROL RELAY ASSEMBLY (Click here)

13.CHECK HARNESS AND CONNECTOR (BRAKE LIGHT RELAY - STOP LIGHT AND BODY GROUND)


  1. Remove the brake light relay from the engine room relay block.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

  1. for LH:

    1. Disconnect the K4 light connector.

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      Brake light relay terminal 3 - K4-5 (STP)
      		Always
      		Below 1 Ω
      K4-3 (E) - Body ground
      K4-5 (STP) - Body ground
      		Always
      		10 kΩ or higher

  1. for RH:

    1. Disconnect the L3 light connector.

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      Brake light relay terminal 3 - L3-5 (STP)
      		Always
      		Below 1 Ω
      L3-3 (E) - Body ground
      L3-5 (STP) - Body ground
      		Always
      		10 kΩ or higher


  1. Disconnect the S4 light connector.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    Brake light relay terminal 3 - S4-1 (B)
    		Always
    		Below 1 Ω
    S4-2 (E) - Body ground
    S4-1 (B) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


14.CHECK STOP LIGHT CONTROL RELAY ASSEMBLY

  1. Temporarily replace the stop light control relay with a new or normally functioning one.

  1. Check the stop light operation.

    OK:
    Stop light operation is normal.


NG
REPLACE SKID CONTROL ECU
OK

REPLACE STOP LIGHT CONTROL RELAY ASSEMBLY (Click here)

15.CHECK VEHICLE TYPE

  1. Check the vehicle type.

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


B
Go to step 17
A


16.CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY - STOP LIGHT AND BODY GROUND)


  1. Disconnect the A39 stop light control relay connector.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

  1. for LH:

    1. Disconnect the n1 light connector.

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      A39-8 (OUT) - n1-2 (STP)
      		Always
      		Below 1 Ω
      n1-4 (E) - Body ground
      n1-2 (STP) - Body ground
      		Always
      		10 kΩ or higher

  1. for RH:

    1. Disconnect the Y1 light connector.

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      A39-8 (OUT) - Y1-2 (STP)
      		Always
      		Below 1 Ω
      Y1-6 (E) - Body ground
      Y1-2 (STP) - Body ground
      		Always
      		10 kΩ or higher


  1. Disconnect the T1 light connector.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A39-8 (OUT) - T1-1 (B)
    		Always
    		Below 1 Ω
    T1-2 (E) - Body ground
    T1-1 (B) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE STOP LIGHT CONTROL RELAY ASSEMBLY (Click here)

17.CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY - STOP LIGHT AND BODY GROUND)


  1. Disconnect the A39 stop light control relay connector.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

  1. for LH:

    1. Disconnect the K4 light connector.

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      A39-8 (OUT) - K4-5 (STP)
      		Always
      		Below 1 Ω
      K4-3 (E) - Body ground
      K4-5 (STP) - Body ground
      		Always
      		10 kΩ or higher

  1. for RH:

    1. Disconnect the L3 light connector.

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      A39-8 (OUT) - L3-5 (STP)
      		Always
      		Below 1 Ω
      L3-3 (E) - Body ground
      L3-5 (STP) - Body ground
      		Always
      		10 kΩ or higher


  1. Disconnect the S4 light connector.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A39-8 (OUT) - S4-1 (B)
    		Always
    		Below 1 Ω
    S4-2 (E) - Body ground
    S4-1 (B) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE STOP LIGHT CONTROL RELAY ASSEMBLY (Click here)

18.INSPECT FUSE (STOP FUSE)

  1. Remove the STOP fuse from the engine room relay block.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    STOP fuse
    		Always
    		Below 1 Ω


NG
REPLACE FUSE
OK


19.INSPECT STOP LIGHT SWITCH


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

  1. Remove the stop light switch (Click here).

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    1 - 2
    		Switch pin released
    		Below 1 Ω
    1 - 2
    		Switch pin pushed in
    		10 kΩ or higher


NG
REPLACE STOP LIGHT SWITCH (Click here)
OK


20.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH - BODY GROUND)
Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

  1. Disconnect the A30 stop light switch connector.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    A30-2 - Body ground
    		Always
    		11 to 14 V


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


21.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - STOP LIGHT SWITCH AND BATTERY)
Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Stop Light Circuit

  1. Disconnect the A30 stop light switch connector.

  1. Disconnect the 2B ECU connector.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    2B-22 (STP) - Body ground
    		Brake pedal depressed
    		11 to 14 V
    Brake pedal released
    		Below 1 V

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    2B-22 (STP) - A30-1
    		Always
    		Below 1 Ω
    A30-1 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE MAIN BODY ECU