P2237
O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 1
P2237 is an OBD-II diagnostic trouble code meaning: O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 1. Common causes: open or short circuit in the oxygen sensor control circuit, oxygen sensor malfunction (bank 1 sensor 1). Estimated repair cost: $17–56.
Symptoms
- Check Engine light comes on
- Increased fuel consumption
- Unstable engine idling
- Reduced engine power
- Increase in harmful emissions
Causes
- Open or short circuit in the oxygen sensor control circuit
- Oxygen sensor malfunction (Bank 1 Sensor 1)
- Damaged wiring harness or connectors
- Problems with the electronic control unit (ECU)
- Corroded contacts or damaged wiring
How to Fix
- Check the integrity of the oxygen sensor control circuit
- Inspect connectors and wiring harness for damage
- Check the functionality of the oxygen sensor (Bank 1 Sensor 1)
- If necessary, replace the oxygen sensor
- Check and, if necessary, replace damaged wires or connectors
Related codes
Error P2237 by Vehicle Brand
FAQ
What does the P2237 code mean?
P2237 is an OBD-II diagnostic trouble code that indicates: O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 1
What causes a P2237 error code?
The most common causes of P2237 include: Open or short circuit in the oxygen sensor control circuit; Oxygen sensor malfunction (Bank 1 Sensor 1); Damaged wiring harness or connectors; Problems with the electronic control unit (ECU).
How do I fix a P2237 diagnostic trouble code?
To fix P2237: Check the integrity of the oxygen sensor control circuit. Inspect connectors and wiring harness for damage. Check the functionality of the oxygen sensor (Bank 1 Sensor 1). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2237?
Yes, but get it checked soon
How much does it cost to fix P2237?
The estimated repair cost for P2237 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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