P112C
Oxygen Sensor Negative Current or Positive Current Control Circuit/Open Bank 1 Sensor 1
P112C is an OBD-II diagnostic trouble code meaning: Oxygen Sensor Negative Current or Positive Current Control Circuit/Open Bank 1 Sensor 1. Common causes: open or short circuit in the oxygen sensor control circuit, poor contact in the sensor connector. Estimated repair cost: $17–56.
Symptoms
- Increased fuel consumption
- Deterioration in acceleration dynamics
- Check Engine Light Is On
- Unstable engine operation at idle
- Dips during acceleration
Causes
- Open or short circuit in the oxygen sensor control circuit
- Poor contact in the sensor connector
- Malfunction of the oxygen sensor itself
- Wiring harness damage
- Problems with the ECU
How to Fix
- Check the integrity of the oxygen sensor control circuit
- Inspect the sensor connector for oxidation or damage.
- Check the resistance and voltage at the sensor
- Replace the oxygen sensor if necessary
- Test the system after repair
Related codes
FAQ
What does the P112C code mean?
P112C is an OBD-II diagnostic trouble code that indicates: Oxygen Sensor Negative Current or Positive Current Control Circuit/Open Bank 1 Sensor 1
What causes a P112C error code?
The most common causes of P112C include: Open or short circuit in the oxygen sensor control circuit; Poor contact in the sensor connector; Malfunction of the oxygen sensor itself; Wiring harness damage.
How do I fix a P112C diagnostic trouble code?
To fix P112C: Check the integrity of the oxygen sensor control circuit. Inspect the sensor connector for oxidation or damage.. Check the resistance and voltage at the sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P112C?
Yes, but get it checked soon
How much does it cost to fix P112C?
The estimated repair cost for P112C is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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