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On-Vehicle Inspection

  1. INSPECT STOP LIGHT CONTROL RELAY 
    1. Remove the stop light control relay.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      3 - 4 Voltage is not applied between terminals 1 and 2 Below 1 Ω
      3 - 5 Voltage is not applied between terminals 1 and 2 10 kΩ or higher
      3 - 4 Voltage is applied between terminals 1 and 2 10 kΩ or higher
      3 - 5 Voltage is applied between terminals 1 and 2 Below 1 Ω
      Fig 1: Identifying Stop Light Control Relay
      GTY304733Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the value is not as specified, replace the stop light control relay.