- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
your o2 sensor is bad. vsc will go on for any small DTC displayed on the MIL (cel)
P0037 LEXUS - Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 2
- Engine Light ON (or Service Engine Soon Warning Light)
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit open shorted to ground - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit poor electrical connection - Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit fuse - Faulty Engine Control Module (ECM)
When is the code detected?
The P0037 is set when the ECM detects an excessively low voltage through the heated oxygen sensor heater circuit
P0037 LEXUS Description
Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 degrees F to produce an accurate voltage signal. The faster the heated oxygen sensor reaches that temperature the faster the sensor will start sending an accurate signal to the Engine Control Module (ECM).
In order to achieve the require temperature, a heater element is included inside the heated oxygen sensor. The ECM controls the heated oxygen sensor heater element based on signals from the engine coolant temperature and engine load. The ECMcontrols the heater element circuit by allowing current flow to ground.
The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.
Buy the sensors and put them on yourself. Buy the aftermarket. They are the same. OEM will cost you about $110 each, Aftermarket $65 each. I work for Bosch and run the line that makes oxygen sensors, there's a lot people don't know about aftermarket and OEM. These can be removed with a 22mm wrench or you buy a special oxygen sensor removal socket/wrench. It's a matter of getting it loose. Run the engine for 1-2 min to warm the exhaust, this helps to loosen the sensors and keeps from stripping the threads. If a shop does this $250-325 depending on shop rates.
This link will take you to a site that will show you what the sensor looks like and it's cost.Your sensor is located in the exhaust pipe by the catalytic converter.This is under the car,screwed directly into the pipe just behind the converter.Hope this helps?
the O2 sensor for bank one sensor one is located between the catalytic converter and the engine in the exhaust head pipe. see photo of your engine cylinder layout, the sensor u want to replace is the one at the cylinder #1 bank on right.