OBD code information sheet
https://obdauto.ro/cod/P0037?lang=en
HO2S Heater Control Circuit Low Bank 1 Sensor 2
Available definitions for this code
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General code
Supplemented diagnostic guidance
Editorial synthesis of general information from the sources below. Listed causes and components are possibilities to investigate; the code does not confirm a faulty part.
- AUTODOC — symptoms, possible causes, checks, components to inspect · Checked:
Save codes and associated data before clearing. Follow the manufacturer procedure for the exact engine and vehicle configuration.
The definition comes from a community catalogue; its translated title may need review. Supplemented sections have their sources listed above. The code alone does not establish the faulty part or severity.
Definition source · MIT licenseReport a problem
Technical explanation
HO2S Heater Control Circuit Low Bank 1 Sensor 2. The supplemented diagnostic sections include their sources. This is general guidance; verify applicability to the exact vehicle.
Symptoms
- Engine warning light; obvious driving symptoms may be absent.
Possible causes
- 01Downstream sensor heater failure.
- 02Damaged or shorted fuse circuit, connector or wiring.
Diagnostic checks
- 01Identify bank 1 sensor 2. Check its heater and supply against the vehicle wiring diagram with the exhaust cool.
Parts involved
- Heated oxygen sensor, wiring and connectors (inspect).
Repair cost calculator
Indicative Romanian repair budgets, depending on the diagnosed repair. Choose your vehicle and compare available scenarios.
Model, year and engine (optional)
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Display prices
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Experiences with this code
User-reported cases published after moderation. Approval does not verify the diagnosis; the same code can have different causes.
No approved English experiences for this definition yet.
