P1112 Intake Air Temperature Sensor Intermittent Condition
What does P1112 mean on a Ford?
P1112 — Intake Air Temperature Sensor Intermittent Condition. This Ford-enhanced code applies to F-150, Explorer, Ranger, Taurus, Focus.
Common causes of P1112
- Loose IAT sensor connector
- Chafed IAT wiring shorting intermittently
- Failing IAT sensor with temperature-dependent dropout
- Corroded terminals at the sensor
- PCM reference fault
How to fix P1112
- Wiggle-test the IAT connector while watching live temperature
- Inspect wiring where it routes near hot or moving parts
- Compare IAT to ambient on a cold engine
- Check terminals for green corrosion
- Replace the sensor if the signal drops with a good circuit