EN
P0112Severity: Low

P0112: Intake Air Temperature (IAT) Sensor – Circuit Low

Quick answer

P0112 is a generic OBD-II trouble code that means: Intake Air Temperature (IAT) Sensor – Circuit Low. Usually yes in the short term. The car normally runs fine, but fix it soon to avoid failing an emissions test or causing further problems.

What does P0112 mean?

P0112 is a generic OBD-II trouble code that means: Intake Air Temperature (IAT) Sensor – Circuit Low. The engine control module (ECM) stores this code when it detects a fault related to: Intake Air Temperature (IAT) Sensor.

Can I still drive?

Severity: Low

Usually yes in the short term. The car normally runs fine, but fix it soon to avoid failing an emissions test or causing further problems.

Symptoms

  • Check engine light is on
  • Hard starting
  • Higher fuel consumption
  • Often no noticeable drivability symptoms

Common causes

  • Faulty sensor or component
  • Damaged wiring or a loose/corroded connector
  • Clogged air filter

How to fix it

  1. Read all stored codes and freeze-frame data with an OBD-II scanner
  2. Inspect the wiring and connectors for damage, corrosion or looseness
  3. Test the sensor with a multimeter against the manufacturer's specification
  4. Replace the faulty component with a quality part
  5. Clear the code and road-test the car to confirm the repair

Frequently asked questions

What does code P0112 mean?

P0112 is a generic OBD-II trouble code that means: Intake Air Temperature (IAT) Sensor – Circuit Low. The engine control module (ECM) stores this code when it detects a fault related to: Intake Air Temperature (IAT) Sensor.

What causes code P0112?

The most common causes are: Faulty sensor or component; Damaged wiring or a loose/corroded connector; Clogged air filter.

How do I fix code P0112?

Start with these steps: Read all stored codes and freeze-frame data with an OBD-II scanner; Inspect the wiring and connectors for damage, corrosion or looseness; Test the sensor with a multimeter against the manufacturer's specification; Replace the faulty component with a quality part.

Is it safe to drive with code P0112?

Severity: Low. Usually yes in the short term. The car normally runs fine, but fix it soon to avoid failing an emissions test or causing further problems.

Related codes