P1135 Toyota - Prerunner 2001

Question

need to know what parts is the Air Fuel Sensor Heater Circuit response malfunction parts
on the engine

Answer 1

P1135 A / F (airflow sensor) heater circuit malfunction

P0125 A/F (airflow sensor output voltage bank 1 sensor 1

This is a low output heater voltage of the airflow sensor bank 1 sensor 1 , P0125 is a generic code that means coolant temperature insufficient for closed loop operation , Toyota does not use this code, This is for the A/F not reaching proper operation due to its heater circuit.