The P0036 trouble code is related to the HO2S (Heated Oxygen Sensor) Heater Control Circuit in Bank 1, Sensor 2. It indicates a potential issue with the heater control circuit of the oxygen sensor positioned in the exhaust system’s first bank and second sensor location. This code is often found in vehicles with advanced emission control systems.
HO2S Heater Control Circuit Bank 1 Sensor 2
Code symptoms P0036.
1. Increased fuel consumption.
2. Engine may run roughly.
3. Illuminated “Check Engine” or “Service Engine Soon” light on the dashboard.
This code is common in brands such as:: Chevrolet, Renault, Ford, Toyota, Nissan, Mercedes Benz, Honda.
Causes of the code P0036.
1. Malfunctioning oxygen sensor heater.
2. Wiring or connector issues within the sensor circuit.
3. Problems with the Engine Control Module (ECM).
Code Solutions P0036.
1. Inspect and replace the oxygen sensor if the heater is malfunctioning.
2. Check and repair any damaged wiring or connectors in the sensor circuit.
3. If ECM issues are suspected, consult a qualified technician for diagnosis and potential reprogramming or replacement.