FixVault

On-Vehicle Inspection

  1. INSPECT DEFOGGER RELAY (Marking: DEFOG) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 1: Identifying Defogger Relay Connector Terminals
      GTY120428Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      STANDARD RESISTANCE

      Tester Condition Specified Condition
      3 - 4 Below 1 Ω
      (when battery voltage is not applied between terminals)
      3 - 5 10 kΩ or higher
      (when battery voltage is not applied between terminals)
      3 - 5 Below 1 Ω
      (when battery voltage is applied to terminals 1 and 2)

      If the result is not as specified, replace the relay.