P1111 — Suzuki — Intake Air Temperature Sensor Circuit High Input

P1111 (Suzuki): Intake Air Temperature Sensor Circuit High Input — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

The IAT sensor circuit is producing an intermittently high voltage signal outside the expected range. Manufacturer-specific definition; confirm applicability in the service information for the exact vehicle.

Affected system: Powertrain