Code Definition

P1404 — Evaporative Emission leak detection module heater

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Kia

About P1404

P1404 is a manufacturer-specific powertrain diagnostic trouble code recorded for Kia vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

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.

P1404 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The evaporative emission leak detection module includes a heater that keeps the module and its reference orifice at a stable temperature so the leak test gives consistent results in cold conditions. The Engine Control Module (ECM) controls and monitors this heater circuit. DTC P1404 sets when the ECM detects a fault in the leak detection module heater circuit, such as an open, a short, or current draw outside the expected range. This is typically a heater element, wiring, or connector fault rather than the ECM. Because the fault is on the diagnostic side of the EVAP system, the driver usually ...

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