P2238
O2 Sensor Positive Current Control Circuit Low Bank 1 Sensor 1
P2238 is an OBD-II diagnostic trouble code meaning: O2 Sensor Positive Current Control Circuit Low Bank 1 Sensor 1. Common causes: open or short circuit in the sensor circuit, oxygen sensor malfunction. Estimated repair cost: $17–56.
Symptoms
- Increased fuel consumption
- Unstable engine operation
- Check Engine light comes on
- Reduced engine power
- Dips during acceleration
Causes
- Open or short circuit in the sensor circuit
- Oxygen sensor malfunction
- Connector problems or contact corrosion
- ECU malfunction
- Wiring harness damage
How to Fix
- Check the continuity of the oxygen sensor circuit
- Inspect connectors and contacts for corrosion
- Check resistance and voltage in the circuit
- Replace the oxygen sensor if necessary
- Check and, if necessary, replace the computer
Related codes
Error P2238 by Vehicle Brand
FAQ
What does the P2238 code mean?
P2238 is an OBD-II diagnostic trouble code that indicates: O2 Sensor Positive Current Control Circuit Low Bank 1 Sensor 1
What causes a P2238 error code?
The most common causes of P2238 include: Open or short circuit in the sensor circuit; Oxygen sensor malfunction; Connector problems or contact corrosion; ECU malfunction.
How do I fix a P2238 diagnostic trouble code?
To fix P2238: Check the continuity of the oxygen sensor circuit. Inspect connectors and contacts for corrosion. Check resistance and voltage in the circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2238?
Yes, but get it checked soon
How much does it cost to fix P2238?
The estimated repair cost for P2238 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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