P2A38
O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 3
P2A38 is an OBD-II diagnostic trouble code meaning: O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 3. Common causes: open or short circuit in the sensor circuit, malfunction of the oxygen sensor itself. Estimated repair cost: $28–89.
Symptoms
- Check Engine light comes on
- Increased fuel consumption
- Reduced engine power
- Increased level of harmful emissions
- Rough engine idling
Causes
- Open or short circuit in the sensor circuit
- Malfunction of the oxygen sensor itself
- Problems with the sensor connector
- Engine ECU malfunction
- Corroded contacts or damaged wiring harness
How to Fix
- Check the integrity of the sensor circuit
- Inspect the connector and contacts for damage
- Check sensor resistance
- Replace the oxygen sensor if necessary
- Reset the error code and check the system operation
Related codes
Error P2A38 by Vehicle Brand
FAQ
What does the P2A38 code mean?
P2A38 is an OBD-II diagnostic trouble code that indicates: O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 3
What causes a P2A38 error code?
The most common causes of P2A38 include: Open or short circuit in the sensor circuit; Malfunction of the oxygen sensor itself; Problems with the sensor connector; Engine ECU malfunction.
How do I fix a P2A38 diagnostic trouble code?
To fix P2A38: Check the integrity of the sensor circuit. Inspect the connector and contacts for damage. Check sensor resistance. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2A38?
Yes, but get it checked soon
How much does it cost to fix P2A38?
The estimated repair cost for P2A38 is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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