Diagnostic article Generic OBD-II

P2425: An EGR cooling-valve open-load report is an actuator-circuit finding

Learn Ford P2425’s continuous electrical monitoring and why it does not directly measure EGR cooling effectiveness.

Read before applying this article

Documented application

Ford 2023–2024 diesel OBD summary, August 25, 2023 revision; only the described monitor examples. Confirm the engine and calibration before applying values.

The code alone does not identify a failed part or establish that a vehicle is safe to drive. Confirm the vehicle, reporting module and applicable service procedure.

P2425 identifies an open-load condition in the EGR cooling-valve actuator circuit in Ford’s diesel summary. The monitor is electrical. It does not directly report whether exhaust gas has reached a target temperature or whether the cooler transfers enough heat.

Preserve the open category and its timing

The source lists continuous execution and a two-second malfunction-registration duration, with the timing continuing onto the following page. P2426 and P2427 are separately listed for low and high short-circuit classifications. Those categories should not be merged into one generic cooling-valve failure.

A lack of expected cooling behavior may be relevant context, but it cannot by itself establish an open actuator load. Conversely, a later normal operating response does not recreate the circuit state that produced the stored fault.

Establish the affected control path

Retain the full diagnostic identifier, requested actuator operation and available electrical status. The document distinguishes this EGR cooling-valve circuit from other engine-coolant bypass valves, so a similar valve label is insufficient to select the component or connector.

Ford does not publish an open-load resistance threshold, pinout or direct-power test for P2425 in this summary. It cannot localize an interruption to the valve winding, a connection, harness or controller output. The applicable vehicle circuit procedure is necessary before selecting a repair, rather than condemning the EGR cooler itself from an electrical actuator code.

Source and applicability

Ford 2023–2024 diesel OBD summary, August 25, 2023 revision; only the described monitor examples. Confirm the engine and calibration before applying values. The monitor explanation does not identify a failed part or replace the applicable service procedure. Ford PDF, page 101. Ford PDF, page 102.

Article source documents

  1. Ford Motor Company

    2023–2024 MY OBD System Operation Summary for Diesel Engines

Source checks describe how the text was prepared; they do not certify a diagnosis or confirm compatibility with every vehicle using this code.

Original code reference

Dictionary definition

EGR Cooling Valve Control Circuit/Open

This definition retains its original catalog scope. The article above is limited to its explicitly documented application.

Reference scope

Generic OBD-II definition.

A manufacturer label does not establish the model, year, engine or module to which a diagnosis applies. Read the safety and diagnostic limits.

Definition source

  1. Community reference dataWal33D (Waleed Judah)
    DTC Database: pinned community code definitions

    Source checked · MIT