Code status
Needs verification
Not yet verified against SAE J2012_202509 / J2012DA. Treat unverified rows as a lookup aid, not repair authority.
- System
- Fuel / Air
- Scope
- iso-sae-controlled-p0
- Standard
- SAE J2012 / ISO 15031-6
- Source
- legacy-import
Diagnostic boundary
A diagnostic trouble code reports that a monitored test failed. It does not prove one specific part is bad, and manufacturer logic can add vehicle-specific conditions.
Do not replace the sensor from one odd reading; range/performance faults need trend and plausibility checks.
Useful checks before replacing parts
- Compare IAT to ambient temperature after a cold soak and watch how it changes as underhood temperature rises.
- Inspect the sensor location, airbox sealing, connector fit, wiring, and shared MAF/IAT harness condition.
- Review freeze-frame data to see whether the fault set after heat soak, high load, or sudden airflow changes.
Related OBD-II codes
These nearby fuel / air entries can help compare wording and fault area. They may share the same verification status as the source database.