Intake Air Temperature Sensor Intermittent
The IAT signal shows intermittent dropouts or jumps that fall outside slope expectations but do not stay above or below threshold long enough to trigger P0112/P0113. Usually a wiring or connector issue.
Affected components
- Intake air temperature sensor
- Intake air temperature sensor wiring
Common causes
- High likelihood: Loose or oxidised connector
- Medium likelihood: Wiring chafed against engine
- Low likelihood: Connector with intermittent contact under vibration
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.