LIGHTING SYSTEM Hazard Warning Switch Circuit

DTC Code DTC Name
Hazard Warning Switch Circuit

DESCRIPTION

The combination meter assembly receives the hazard warning signal switch assembly ON signal and controls the operation of the hazard warning lights.

WIRING DIAGRAM

E259632E01

PROCEDURE

  1. READ VALUE USING GTS

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Combination Meter / Data List.

    5. Read the display on the GTS.

      Body Electrical > Combination Meter > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Hazard Flasher Switch

      Hazard warning signal switch signal

      ON or OFF

      ON: Hazard warning signal switch on

      OFF: Hazard warning signal switch off

      -

      Body Electrical > Combination Meter > Data List

      Tester Display

      Hazard Flasher Switch

      OK

      Normal conditions listed above are displayed.

    Result

    Proceed to

    OK

    NG
    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click here

    NG

  2. INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY

    1. Remove the hazard warning signal switch assembly.

      Click here

    2. E173011C02

      *a

      Component without harness connected

      (Hazard Warning Signal Switch Assembly)

      for LHD:

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

        Standard Resistance

        Tester Connection

        Condition

        Specified Condition

        4 (TB) - 1 (E)

        Hazard warning signal switch on

        Below 1 Ω

        Hazard warning signal switch off

        10 kΩ or higher
    3. E136319C05

      *a

      Component without harness connected

      (Hazard Warning Signal Switch Assembly)

      for RHD:

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

        Standard Resistance

        Tester Connection

        Condition

        Specified Condition

        4 (TB) - 1 (E)

        Hazard warning signal switch on

        Below 1 Ω

        Hazard warning signal switch off

        10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE HAZARD WARNING SIGNAL SWITCH ASSEMBLY

    Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (HAZARD WARNING SIGNAL SWITCH ASSEMBLY - COMBINATION METER ASSEMBLY AND BODY GROUND)

    1. Disconnect the E45 combination meter assembly connector.

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

      Standard Resistance

      Table 1. for LHD

      Tester Connection

      Condition

      Specified Condition

      E96-4 (TB) - E45-3 (HAZ)

      Always

      Below 1 Ω

      E96-4 (TB) - Body ground

      Always

      10 kΩ or higher

      E96-1 (E) - Body ground

      Always

      Below 1 Ω
      Table 2. for RHD

      Tester Connection

      Condition

      Specified Condition

      E41-4 (TB) - E45-3 (HAZ)

      Always

      Below 1 Ω

      E41-4 (TB) - Body ground

      Always

      10 kΩ or higher

      E41-1 (E) - Body ground

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE COMBINATION METER ASSEMBLY

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR