Intake Air Temperature/Ambient Air Temperature Correlation
Intake air temperature and ambient air temperature readings deviate beyond plausible limits — at engine off both should match within tolerance.
Affected components
- Iat sensor
- Ambient air temp sensor
Common causes
- High likelihood: One sensor drifted
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.