LIGHTING SYSTEM Hazard Warning Switch Circuit

DESCRIPTION

The combination meter assembly receives information signals from the hazard warning signal switch assembly, and blinks the turn signal lights.

WIRING DIAGRAM

A005HDSE04
*a from Battery
*b HAZARD WARNING SIGNAL SWITCH ASSEMBLY
*c COMBINATION METER ASSEMBLY

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (HEADLIGHT DIMMER SWITCH)


    1. Using the intelligent tester, read the Data List Click here.

      Meter
      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

      		 -
      OK
      The display is as specified in the normal condition column.
      Result
      Result Proceed to
      NG A
      OK B

    B

    CHECK HARNESS AND CONNECTOR (BATTERY - COMBINATION METER) Click here

    A

  2. INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY


    1. Remove the hazard warning signal switch assembly Click here.

    2. Inspect the hazard warning signal switch assembly Click here.


    NG

    REPLACE HAZARD WARNING SIGNAL SWITCH ASSEMBLY Click here

    OK

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


    1. Remove the combination meter assembly Click here.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      F2-4 - F3-3 (HAZ) Always Below 1 Ω
      F2-1 - Body Ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      F2-4 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (BATTERY - COMBINATION METER)


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

      Standard Voltage
      Tester Connection Condition Specified Condition
      F3-1 - Body Ground Always 11 to 14 V

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR