STOP LIGHT SWITCH ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT STOP LIGHT SWITCH ASSEMBLY


    1. A002179C31
      *a

      Front view of wire harness connector

      (to Stop Light Switch Assembly)

      Disconnect the A56 stop light switch assembly connector.

    2. Measure the voltage and resistance on the wire harness side connector according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      A56-1 (B) - A56-3 (GND) Power switch off 11 to 14 V
      A56-5 (B) - A56-3 (GND) Power switch on (IG) 11 to 14 V
      Standard Resistance
      Tester Connection Condition Specified Condition
      A56-3 (GND) - Body ground Always Below 1 Ω

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

    3. A011N7YC26
      *a

      Component with harness connected

      (Stop Light Switch Assembly)

      Reconnect the A56 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
      A56-2 (L) - A56-3 (GND) Power switch off, brake pedal not depressed Below 1 V
      A56-2 (L) - A56-3 (GND) Power switch off, brake pedal depressed 11 to 14 V
      A56-4 (L) - A56-3 (GND) Power switch on (IG), brake pedal not depressed 11 to 14 V
      A56-4 (L) - A56-3 (GND) Power switch on (IG), brake pedal depressed Below 1 V

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