Code Definition

P0114 — Intake Air Temperature Circuit Intermittent

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P0114

P0114 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P0114 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P0114 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The P0114 code indicates an intermittent signal in the circuit of the Intake Air Temperature (IAT) sensor. This sensor measures the temperature of air entering the engine's intake system, and its data is essential for the Engine Control Module (ECM) to optimise fuel mixture and ignition timing. An intermittent signal from the IAT sensor can lead to inconsistent engine performance, such as fluctuating idle, poor fuel efficiency, and erratic acceleration.

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