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Hazard Warning Switch Circuit [08/2015 - 08/2017]: Procedure

  1. INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY 
    GTY217185Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the hazard warning signal switch assembly (Refer to REMOVAL [08/2015 - 08/2017] ).
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      1 (E) - 4 (B1) Hazard warning switch ON Below 1 Ω
      Hazard warning switch OFF 10 kΩ or higher
    3. Reinstall the hazard warning switch assembly.

    Result: 

    NG 

    REPLACE HAZARD WARNING SIGNAL SWITCH ASSEMBLY 

    (Refer to REMOVAL [08/2015 - 08/2017] )

    Result: 

    OK 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (HAZARD WARNING SIGNAL SWITCH - TURN SIGNAL FLASHER) 
    GTY607528Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the J3 hazard warning signal switch assembly connector.
    2. Disconnect the H39 turn signal flasher assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J3-4 (B1) - H39-12 (HAZ) Always Below 1 Ω
      J3-1 (E) - Body ground Always Below 1 Ω
      J3-4 (B1) - Body ground Always 10 kΩ or higher
    4. reconnect the turn signal flasher assembly connector.
    5. Reconnect the hazard warning signal switch assembly connector.

    Result: 

    OK 

    PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

    (Refer to PROBLEM SYMPTOMS TABLE [08/2015 - 08/2017] )

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR