Lighting System Taillight Circuit

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PERFORM ACTIVE TEST USING GTS (TAILLIGHT)

CHECK HARNESS AND CONNECTOR (COWL SIDE JUNCTION BLOCK LH - BATTERY)

CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT - COWL SIDE JUNCTION BLOCK LH

INSPECT COWL SIDE JUNCTION BLOCK LH

LIGHTING SYSTEM - Taillight Circuit


DESCRIPTION

The main body ECU (multiplex network body ECU) receives a light control switch information signal from the headlight dimmer switch, and illuminates the taillights.

WIRING DIAGRAM


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


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


INSPECTION PROCEDURE

1.PERFORM ACTIVE TEST USING GTS (TAILLIGHT)
  1. Operate the GTS according to the steps on the display and select "Active Test" (Click here).

    Main Body
    Tester Display
    Test Part
    Control Range
    Diagnostic Note
    Taillight Relay
    Taillight
    ON or OFF
    -
    OK:
    Taillight turns on/turns off.


NG
Go to step 2
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

2.CHECK HARNESS AND CONNECTOR (COWL SIDE JUNCTION BLOCK LH - BATTERY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System  Taillight Circuit
  1. Disconnect the 2G cowl side junction block LH connector.

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

    Standard Voltage:
    Tester Connection
    Condition
    Specified Condition
    2G-1 - Body ground
    Always
    11 to 14 V
    Text in Illustration
    *a
    Front view of wire harness connector
    (to Cowl Side Junction Block LH)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT - COWL SIDE JUNCTION BLOCK LH
  1. Disconnect the 2K cowl side junction block LH connector.

  1. except Double Swing Out Type:

    1. Disconnect the K4*1 and L3*2 light connectors.
      *1: for LH
      *2: for RH
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance:
      for LH:
      Tester Connection
      Condition
      Specified Condition
      2K-3 - K4-6 (TL)
      Always
      Below 1 Ω
      K4-3 (E) - Body ground
      K4-6 (TL) - Body ground
      Always
      10 kΩ or higher
      for RH:
      Tester Connection
      Condition
      Specified Condition
      2K-3 - L3-6 (TL)
      Always
      Below 1 Ω
      L3-3 (E) - Body ground
      L3-6 (TL) - Body ground
      Always
      10 kΩ or higher
  1. for Double Swing Out Type:

    1. Disconnect the n1*1 and Y1*2 light connectors.
      *1: for LH
      *2: for RH
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance:
      for LH:
      Tester Connection
      Condition
      Specified Condition
      2K-3 - n1-5 (TL)
      Always
      Below 1 Ω
      n1-4 (E) - Body ground
      n1-5 (TL) - Body ground
      Always
      10 kΩ or higher
      for RH:
      Tester Connection
      Condition
      Specified Condition
      2K-3 - Y1-5 (TL)
      Always
      Below 1 Ω
      Y1-6 (E) - Body ground
      Y1-5 (TL) - Body ground
      Always
      10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.INSPECT COWL SIDE JUNCTION BLOCK LH
  1. for LHD:

    1. Remove the cowl side junction block LH (Click here).

    2. Remove the main body ECU (multiplex network body ECU) from the cowl side junction block LH (Click here).

  1. for RHD:

    1. Remove the cowl side junction block LH (Click here).

    2. Remove the main body ECU (multiplex network body ECU) from the cowl side junction block LH (Click here).


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

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

    Standard Voltage:
    Tester Connection
    Condition
    Specified Condition
    2K-3 - Battery negative (-) terminal
    Battery voltage applied between terminals 2G-1 and A-14 (TRLY)
    11 to 14 V
    Battery voltage not applied between terminals 2G-1 and A-14 (TRLY)
    Below 1 V
Result
Result
Proceed to
OK (for LHD)
A
OK (for RHD)
B
NG (for LHD)
C
NG (for RHD)
D


B
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (Click here)

C
REPLACE COWL SIDE JUNCTION BLOCK LH (Click here)

D
REPLACE COWL SIDE JUNCTION BLOCK LH (Click here)
A

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (Click here)