STOP LIGHT SWITCH ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT STOP LIGHT SWITCH ASSEMBLY


    1. A004ZFOE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Stop Light Switch Assembly)

      Disconnect the A74 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
      A74-1 (B) - A74-3 (GND) Power switch off 11 to 14 V
      A74-5 (B) - A74-3 (GND) Power switch on (IG) 11 to 14 V
      Standard Resistance
      Tester Connection Condition Specified Condition
      A74-3 (GND) - Body ground Always Below 1 Ω

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

    3. A004XQ8E02
      Text in Illustration
      *a

      Component with harness connected

      (Stop Light Switch Assembly)

      Reconnect the A74 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
      A74-2 (L) - A74-3 (GND) Power switch off, brake pedal not depressed Below 1 V
      A74-2 (L) - A74-3 (GND) Power switch off, brake pedal depressed 11 to 14 V
      A74-4 (L) - A74-3 (GND) Power switch on (IG), brake pedal not depressed 11 to 14 V
      A74-4 (L) - A74-3 (GND) Power switch on (IG), brake pedal depressed Below 1 V

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