LIGHTING SYSTEM Hazard Warning Switch Circuit

DESCRIPTION

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

WIRING DIAGRAM

A01EYGFE02

INSPECTION PROCEDURE

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the intelligent tester on.

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

    5. Read the display on the intelligent tester.

      Combination Meter
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Hazard Flasher Switch Hazard switch signal/ON or OFF

      ON: Hazard switch on

      OFF: Hazard switch off

      		 -
      OK
      Normal conditions listed above are displayed.

    NG

    INSPECT AIR CONDITIONING CONTROL ASSEMBLY (HAZARD SWITCH) Click here

    OK

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

  2. INSPECT AIR CONDITIONING CONTROL ASSEMBLY (HAZARD SWITCH)


    1. A01EUU9E10
      Text in Illustration
      *a

      Component without harness connected

      (Air Conditioning Control Assembly)

      Remove the air conditioning control assembly Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      4 (HAZ) - 6 (GND) Hazard switch on Below 1 Ω
      4 (HAZ) - 6 (GND) Hazard switch off 10 kΩ or higher

    NG

    REPLACE HEATER CONTROL SWITCH BOARD Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY - COMBINATION METER ASSEMBLY)


    1. Disconnect the I17 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I56-4 (HAZ) - I17-5 (HAZ) Always Below 1 Ω
      I56-4 (HAZ) - Body ground Always 10 kΩ or higher
      I56-6 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here