P112D Code - Oxygen Sensor Negative Current or Positive Current Control Circuit/Open Bank 2 Sensor 1
Quick Answer
The P112D diagnostic trouble code (DTC) indicates an issue with the oxygen sensor negative current or positive current control circuit/open in Bank 2 Sensor 1 of the vehicle. Common causes include Faulty oxygen sensor, Wiring or connector issues, Corrosion or damage to the sensor. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P112D indicates Oxygen Sensor Negative Current or Positive Current Control Circuit/Open Bank 2 Sensor 1.
- Common causes
- Common causes include Faulty oxygen sensor, Wiring or connector issues, Corrosion or damage to the sensor.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P112D Description
The P112D diagnostic trouble code (DTC) indicates an issue with the oxygen sensor negative current or positive current control circuit/open in Bank 2 Sensor 1 of the vehicle. This sensor is responsible for monitoring the oxygen levels in the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion.
Common Causes of P112D
- Faulty oxygen sensor
- Wiring or connector issues
- Corrosion or damage to the sensor
- ECM software issues
- Exhaust system leaks
Symptoms of P112D
- Decreased fuel efficiency
- Rough idle or stalling
- Engine misfires
- Check Engine Light illuminated
- Failed emissions test
How to Fix P112D
- Diagnose the issue using a scan tool to verify the P112D code and inspect the oxygen sensor and its wiring.
- Replace the Bank 2 Sensor 1 oxygen sensor if it is faulty.
- Repair or replace any damaged wiring or connectors.
- Clear the DTC and perform a test drive to ensure the code does not return.
- Reset the ECM and monitor the oxygen sensor readings to confirm proper operation.
Cost to Fix P112D
The cost of repairing a P112D code can vary depending on the make and model of the vehicle, the location of the repair shop, and the extent of the issue. On average, the cost of replacing an oxygen sensor can range from $200 to $500, including parts and labor. Additional costs may apply if there are wiring or connector issues that need to be addressed. It is recommended to get a detailed estimate from a qualified mechanic before proceeding with the repairs.
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Code P112D Information for Specific Makes
- P112D BMW — Upstream Oxygen Sensor Open Circuit Monitoring Virtual Ground Failure or Pumping Current Failure Bank 2
- P112D Buick — Intake Air Temperature Sensor 3 Circuit High Voltage
- P112D Cadillac — Intake Air Temperature Sensor 3 Circuit High Voltage
- P112D Chevrolet — Intake Air Temperature Sensor 3 Circuit High Voltage
- P112D GMC — Intake Air Temperature Sensor 3 Circuit High Voltage
- P112D MINI — Upstream Oxygen Sensor Open Circuit Monitoring Virtual Ground Failure or Pumping Current Failure Bank 2
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