LIGHTING SYSTEM Hazard Warning Switch Circuit

DESCRIPTION

The combination meter assembly receives the integration control and panel assembly (hazard warning signal switch) on signal and controls the operation of the hazard warning lights.

WIRING DIAGRAM

B004BMCE01
*a HZSW
*b Integration Control and Panel Assembly (Hazard Warning Signal Switch)
*c Combination Meter Assembly

CAUTION / NOTICE / HINT

Note

When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.

PROCEDURE


  1. READ VALUE USING GTS


    1. Using the GTS, read the Data List.

      Click here


      Body Electrical > Combination Meter > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Hazard Flasher Switch Hazard warning signal switch OFF or ON

      OFF: Hazard warning signal switch off

      ON: Hazard warning signal switch on

      		 -

      Body Electrical > Combination Meter > Data List
      Tester Display
      Hazard Flasher Switch
      OK
      Normal condition 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 INTEGRATION CONTROL AND PANEL ASSEMBLY (HAZARD WARNING SIGNAL SWITCH)


    1. Remove the integration control and panel assembly (hazard warning signal switch).

      Click here

    2. Inspect the integration control and panel assembly (hazard warning signal switch).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE INTEGRATION CONTROL AND PANEL ASSEMBLY (HAZARD WARNING SIGNAL SWITCH) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (INTEGRATION CONTROL AND PANEL ASSEMBLY [HAZARD WARNING SIGNAL SWITCH] - COMBINATION METER ASSEMBLY AND BODY GROUND)


    1. Disconnect the P84 integration control and panel assembly (hazard warning signal switch) connector.

    2. Disconnect the P26 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P84-6 (HAZ) - P26-2 (HZSW) Always Below 1 Ω
      P84-3 (GND) - Body ground Always Below 1 Ω
      P84-6 (HAZ) or P26-2 (HZSW) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR