STOP LIGHT SWITCH ON-VEHICLE INSPECTION


  1. INSPECT STOP LIGHT SWITCH ASSEMBLY


    1. A019OXLE48
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Stop Light Switch Assembly)

      Disconnect the A79 connector from the stop light switch assembly.

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      A79-1 (B) - A79-3 (GND) Engine switch off 11 to 14 V
      A79-5 (B) - A79-3 (GND) Engine switch on (IG) 11 to 14 V
      Standard Resistance
      Tester Connection Condition Specified Condition
      A79-3 (GND) - Body ground Always Below 1 Ω

      If the result is not as specified, repair or replace the wire harness or connector.

    3. A019LRUE46
      Text in Illustration
      *1

      Component with harness connected

      (Stop Light Switch Assembly)

      Reconnect the A79 connector to the stop light switch assembly.

    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      A79-2 (L) - A79-3 (GND) Engine switch off, brake pedal not depressed Below 1 V
      A79-2 (L) - A79-3 (GND) Engine switch off, brake pedal depressed 11 to 14 V
      A79-4 (L) - A79-3 (GND) Engine switch on (IG), brake pedal not depressed 11 to 14 V
      A79-4 (L) - A79-3 (GND) Engine switch on (IG), brake pedal depressed Below 1 V

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