LIGHTING SYSTEM Hazard Warning Switch Circuit

DESCRIPTION

The turn signal flasher receives a hazard warning signal switch information signal, and illuminates the turn signal lights.

WIRING DIAGRAM

A003B21E09

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY

    A003CPOE02
    Text in Illustration
    *1

    Component without harness connected

    (Hazard Warning Signal Switch Assembly)

    1. Remove the hazard warning signal switch Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      1 (E) - 4 (TB) Hazard warning signal switch on Below 1 Ω
      Hazard warning signal switch off 10 kΩ or higher

    NG

    REPLACE HAZARD WARNING SIGNAL SWITCH ASSEMBLY Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (HAZARD WARNING SIGNAL SWITCH - TURN SIGNAL FLASHER AND BODY GROUND)

    A003CHGE01
    Text in Illustration
    *1

    Component without harness connected

    (Main Body ECU [for LHD])
    *2

    Component without harness connected

    (Center Airbag Sensor)
    *3

    Front view of wire harness connector

    (to Turn Signal Flasher Assembly [for RHD])
    *4

    Front view of wire harness connector

    (to Hazard Warning Signal Switch Assembly)

    1. Disconnect the D61 hazard warning signal switch connector.

    2. for LHD:

      Remove the turn signal flasher.

    3. for RHD:

      Disconnect the D106 turn signal flasher connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      D61-4 (TB) - 8 (EHW) Always Below 1 Ω
      D61-1 (E) - Body ground Always Below 1 Ω
      D61-4 (TB) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      D61-4 (TB) - D106-8 (HAZ) Always Below 1 Ω
      D61-1 (E) - Body ground Always Below 1 Ω
      D61-4 (TB) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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