LIGHTING SYSTEM Hazard Warning Switch Circuit

DESCRIPTION

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

WIRING DIAGRAM

A005ETAE04

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

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

    5. Read the display on the GTS.

      Combination 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.

    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. A005DQSE03
      Text in Illustration
      *a

      Component without harness connected

      (Hazard Warning Signal Switch Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 (F) - 5 (E) Hazard warning switch off 10 kΩ or higher
      Hazard warning switch on Below 1 Ω

    NG

    REPLACE HAZARD WARNING SIGNAL SWITCH ASSEMBLY Click here

    OK

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


    1. Disconnect the L27 combination meter sub-assembly connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      L57-3 (F) - L27-4 (HAZ) Always Below 1 Ω
      L57-5 (E) - Body Ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      L57-3 (F) - Body ground Always 10 kΩ or higher

    OK

    REPLACE METER CIRCUIT PLATE Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR