Trouble Code:
P0037 – HO2S Heater Control Circuit Low Bank 1 Sensor 2
Likely Cause:
– Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2
– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 fuse
– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 harness is open or shorted
– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit poor electrical connection
– Faulty Engine Control Module (ECM)
Notes:
The code means that there is a problem with the heater element circuit of the heated oxygen sensor. Water getting inside the heated oxygen sensor connector can caused the heated oxygen sensor fuse to blow, which is a very common problem for this type codes. Before replacing the sensor, check for the condition of the heated oxygen sensor fuse and connectors.
HO2S Heater Control Circuit Low Bank 1 Sensor 2 is the generic definition for the ; however your vehicle’s manufacturer may have a different definition and information for the code.
What is the Nissan code mean?
The is set when the ECM detects an excessively low voltage through the heated oxygen sensor heater circuit
Subsystem:
– Engine Light ON (or Service Engine Soon Warning Light)
Nissan P0340 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 ECM controls 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.
Applicable For:
P0037 Acura
P0037 Alfa Romeo
P0037 Aston Martin
P0037 Audi
P0037 BMW
P0037 Bentley
P0037 Bugatti
P0037 Cadillac
P0037 Chevrolet
P0037 Chrysler
P0037 Citroen
P0037 Dodge
P0037 Ferrari
P0037 Fiat
P0037 Ford
P0037 Honda
P0037 Hummer
P0037 Hyundai
P0037 Infiniti
P0037 Jaguar
P0037 Jeep
P0037 Lamborghini
P0037 Lancia
P0037 Land Rover
P0037 Lexus
P0037 Lincoln
P0037 Maserati
P0037 Maybach
P0037 Mazda
P0037 Mercedes
P0037 Mitsubishi
P0037 Nissan
P0037 Opel
P0037 Pagani
P0037 Peugeot
P0037 Pontiac
P0037 Porsche
P0037 Renault
P0037 Rolls-Royce
P0037 Saab
P0037 Seat
P0037 Skoda
P0037 Subaru
P0037 Suzuki
P0037 Toyota
P0037 Volkswagen
P0037 Volvo