STOP LIGHT SWITCH ON-VEHICLE INSPECTION


  1. INSPECT STOP LIGHT SWITCH ASSEMBLY


    1. A01ESRYE92
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Stop Light Switch Assembly)

      Disconnect the A77 stop light switch assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A77-1 (B) - A77-3 (GND) Always 11 to 14 V
      A77-5 (B) - A77-3 (GND) Ignition switch ON 11 to 14 V
      Standard Resistance
      Tester Connection Condition Specified Condition
      A77-3 (GND) - Body ground Always Below 1 Ω

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

    3. A01EY0DE84
      Text in Illustration
      *a

      Component with harness connected

      (Stop Light Switch Assembly)

      Reconnect the A77 stop light switch assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A77-2 (OUT) - A77-3 (GND) Brake pedal not depressed Below 1 V
      A77-2 (OUT) - A77-3 (GND) Brake pedal depressed 11 to 14 V
      A77-4 (L) - A77-3 (GND) Ignition switch ON, brake pedal not depressed 11 to 14 V
      A77-4 (L) - A77-3 (GND) Ignition switch ON, brake pedal depressed Below 1 V

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