FixVault

Hazard Warning Switch: Inspection

WARNING: This page is about a different car, the 2009 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY 
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION - SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      2 - 3 Hazard warning switch ON Below 1Ω
      2 - 3 Hazard warning switch OFF 10 kΩ or higher
      Fig 1: Identifying Hazard Warning Signal Switch Assembly Connector Terminals
      G04475893Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the result is not as specified, replace the switch assembly.

    2. Connect the battery positive (+) lead from the battery to terminal 4 and battery negative (-) lead to terminal 1, then check that the illumination comes on.

      OK : Illumination comes on. 

      If the result is not as specified, replace the switch assembly.