C1336 means "zero point calibration of yaw rate sensor undone."
Trouble code P0171 means:System too lean (Bank 1)
Trouble code P0174 means: Fuel System Too Lean - Bank 2
Trouble code P1725 means: Rear Wheel Sensor Circuit Malfunction
Trouble code P0120 means: Throttle position or pedal position sensor/switch circuit malfunction
Trouble code P1135 means: Air-Fuel Sensor Heater Circuit Response Malfunction
For something as important as a trouble code for an airbag - PLEASE CALL YOUR TOYOTA DEALER AND ASK.
Trouble code P0446 means: Evaporative Emission System Vent Control Circuit
That code is an evaporative emission control system incorrect purge flow error. It is usually caused by a faulty fuel cap.
When the computer throws the code that you need to change the sensor.
Most ABS systems have special readers and OBD wont see the codes.
The windshield washer fluid is low or out.