P112B GMC – Intake Air Temperature Sensor 3 Performance

P112B GMC Possible Causes

  • Faulty intake air temperature sensor
  • Intake air temperature sensor harness is open or shorted
  • Poor electrical connection in the intake air temperature sensor circuit

How is P112B GMC Code Repaired?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Check Engine Light on (or soon-to-be-service engine warning light)

P112B GMC Meaning

The Intake Air Temperature (IAT) sensor contains a semiconductor device that changes resistance based on temperature (a thermistor). The IAT sensor is located in the air intake passage of the engine’s air intake system. The IAT sensor has a signal circuit and a ground circuit. The Powertrain Control Module (PCM) monitors the Intake Air Temperature sensor signal. The PCM sets the OBDII code when the Intake Air Temperature sensor signal is outside factory specifications.

P112B MINI – Engine Coolant Temperature Too Low

P112B MINI Possible Causes

  • Low engine coolant level
  • Faulty thermostat
  • Faulty engine coolant temperature sensor
  • Engine coolant temperature sensor harness is open or shorted
  • Poor electrical connection in the engine coolant temperature sensor circuit

How to Fix P112B MINI Code?

Start by checking the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Check engine light on (or service engine soon warning light)

P112B MINI Meaning

The engine control module (ECM) monitors the signal from the engine coolant temperature sensor. The ECM sets the OBDII code when the engine coolant temperature sensor is outside factory specifications.

P112C – Negative Current Control Circuit or Positive Current Control Circuit of Oxygen Sensor / Open Circuit of Row 1 Sensor 1

P112C Possible Causes

  • Faulty oxygen (O2) sensor, bank 1 sensor 1
  • O2 sensor, bank 1 Sensor 1 harness is open or shorted
  • Poor electrical connection in bank 1 sensor 1 O2 sensor circuit

How is code P112C repaired?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Check engine light on (or service engine soon warning light)

P112C Meaning

The engine control module (ECM) monitors the oxygen (O2) sensor, bank 1, sensor 1. The ECM sets the OBDII code when the oxygen (O2) sensor, bank 1, sensor 1 does not meet factory specifications.

P112C BMW – Oxygen Sensor Positive or Negative Current Control Circuit / Sensor 1 Bank 1 Open Circuit

P112C BMW Possible Causes

  • Faulty oxygen (O2) sensor, bank 1 sensor 1
  • O2 sensor, bank 1 Sensor 1 harness is open or shorted
  • Poor electrical connection in the bank 1 sensor 1 O2 sensor circuit

How to Fix BMW P112C Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Check Engine Light on (or service engine soon warning light)

P112C BMW Meaning

The Engine Control Module (ECM) monitors the oxygen (O2) sensor, bank 1, sensor 1. The ECM sets the OBDII code when the oxygen (O2) sensor, bank 1, sensor 1 does not meet factory specifications.

P112C BUICK – Low voltage in intake air temperature sensor circuit 3

P112C BUICK Possible Causes

  • Faulty intake air temperature sensor
  • Intake air temperature sensor harness is open or shorted
  • Poor electrical connection in the intake air temperature sensor circuit

How to Fix P112C BUICK Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding cable harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Check engine light on (or service engine soon warning light)

P112C BUICK Meaning

The intake air temperature (IAT) sensor contains a semiconductor device that changes resistance based on temperature (a thermistor). The IAT sensor is located in the air intake passage of the engine’s air intake system. The IAT sensor has a signal circuit and a ground circuit. The Powertrain Control Module (PCM) monitors the intake air temperature sensor signal. The PCM sets the OBDII code when the intake air temperature sensor signal is outside factory specifications.

P112C CHEVROLET – Low voltage in the intake air temperature sensor circuit 3

P112C CHEVROLET Possible Causes

  • Faulty intake air temperature sensor
  • Intake air temperature sensor harness is open or shorted
  • Poor electrical connection in the intake air temperature sensor circuit

How to Fix P112C CHEVROLET Code?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Check Engine Light on (or Service Engine Soon warning light)

P112C CHEVROLET Meaning

The Intake Air Temperature (IAT) sensor contains a semiconductor device that changes resistance based on temperature (a thermistor). The IAT sensor is located in the air intake passage of the engine’s air intake system. The IAT sensor has a signal circuit and a ground circuit. The Powertrain Control Module (PCM) monitors the Intake Air Temperature sensor signal. The PCM sets the OBDII code when the Intake Air Temperature sensor signal is outside factory specifications.

P112C GMC – Low Voltage in Intake Air Temperature Sensor Circuit 3

P112C GMC Possible Causes

  • Faulty intake air temperature sensor
  • Intake air temperature sensor harness is open or shorted
  • Poor electrical connection in the intake air temperature sensor circuit

How is P112C GMC Code Repaired?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Check Engine Light on (or Service Engine Soon Warning Light)

P112C GMC Meaning

The Intake Air Temperature (IAT) sensor contains a semiconductor device that changes resistance based on temperature (a thermistor). The IAT sensor is located in the air intake passage of the engine’s air intake system. The IAT sensor has a signal circuit and a ground circuit. The Powertrain Control Module (PCM) monitors the Intake Air Temperature sensor signal. The PCM sets the OBDII code when the Intake Air Temperature sensor signal is outside factory specifications.

P112C MINI – Oxygen Sensor Negative or Positive Current Control Circuit / Sensor 1 Row 1 Open Circuit

P112C MINI Possible Causes

  • Faulty oxygen (O2) sensor, bank 1 sensor 1
  • O2 sensor, bank 1 Sensor 1 harness is open or shorted
  • Poor electrical connection in bank 1 sensor 1 O2 sensor circuit

How to Fix Code P112C MINI?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Check Engine Light On (or Service Engine Soon Warning Light)

P112C MINI Meaning

The Engine Control Module (ECM) monitors the oxygen (O2) sensor, bank 1, sensor 1. The ECM sets the OBDII code when the oxygen (O2) sensor, bank 1, sensor 1 does not meet factory specifications.

P112D – Negative Current Control Circuit or Positive Current Control Circuit of Oxygen Sensor / Open Circuit of Row 2 Sensor 1

P112D Possible Causes

  • Faulty oxygen (O2) sensor, bank 2 sensor 1
  • O2 sensor, bank 2 Sensor 1 harness is open or shorted
  • O2 sensor, bank 2, sensor 1 circuit, poor electrical connection

How is code P112D repaired?

Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Check engine light on (or service engine soon warning light)

P112D Meaning

The engine control module (ECM) monitors the oxygen (O2) sensor, bank 2, sensor 1. The ECM sets the OBDII code when the oxygen (O2) sensor, bank 1, sensor 1 does not meet factory specifications.

P112D BMW – Negative Current Control Circuit or Positive Current Control Circuit of Oxygen Sensor / Open Circuit of Row 2 Sensor 1

🚗 BMW P112D Error Code – Causes, Symptoms, and Solutions

🔎 Possible Causes of BMW P112D Code

The P112D code indicates a problem with the oxygen sensor (O2), bank 2, sensor 1. Possible causes include:

✅ Faulty oxygen sensor (O2) (bank 2, sensor 1)
✅ Open or short circuit in the O2 sensor wiring
✅ Poor electrical connection in the O2 sensor circuit

⚠️ Possible Symptoms

If your vehicle has the P112D code, you may experience the following symptoms:

🚨 Check engine light on (“Check Engine” or “Service Engine Soon”)
🚗 Reduced engine performance (in some cases)
⛽ Increased fuel consumption

🛠️ How to Fix BMW P112D Code?

To correct this issue, follow these steps:

1️⃣ Check the possible causes mentioned above.
2️⃣ Visually inspect the wiring harness and connectors: look for damaged wires, broken, bent, or corroded pins.
3️⃣ Replace the O2 sensor if necessary after confirmation with a multimeter or diagnostic tool.
4️⃣ Clear the error code and test again with an OBD-II scanner.

📖 Meaning of BMW P112D Code

The engine control module (ECM) monitors the oxygen sensor (O2), bank 2, sensor 1.
When this sensor does not operate according to manufacturer specifications, the P112D code is stored and may affect engine operation.