P0110 — Intake Air Temperature Sensor 1 Circuit Bank 1

P0110: Intake Air Temperature Sensor 1 Circuit Bank 1 — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

P0110 indicates an intake-air-temperature electrical circuit fault at sensor 1, bank 1. This identifies a monitored signal or plausibility condition, not a confirmed defective sensor or a confirmed physical air temperature. Identify the actual sensor and circuit from the vehicle-specific service information before replacing parts.

Affected system: Powertrain

Symptoms

  • Hard starting, uneven idle and increased consumption.

Possible causes

  • Faulty intake temperature sensor or damaged wiring.

What to check

  • Inspect intake temperature sensor wiring and connectors.

Also written as: P0110-00, P011000, PO110 (some scan tools add the fault-type byte, e.g. -00).