Where does heated o2 sensor get its power to heat in Mitsubishi montero?

In a Mitsubishi Montero, the heated oxygen sensor (O2 sensor) receives its power to heat from the vehicle's engine control unit (ECU). The ECU controls the heating element within the sensor by providing voltage when the engine is running, ensuring the sensor reaches optimal operating temperature quickly. This helps improve the sensor's response time and accuracy in measuring exhaust gases for emissions control. Additionally, the power is typically supplied through a dedicated wire connected to the sensor.