DTC P0125 - ECT Excessive Time To Reach Closed Loop: Notes

NOTE: For circuit reference, see the appropriate WIRING DIAGRAMS article. For connector and terminal identification, see CONNECTOR IDENTIFICATION .

While engine is warming, VCM reads Engine Coolant Temperature (ECT) sensor to determine how long it takes coolant to reach temperature required for closed loop operation. VCM compares actual time required to a predetermined time.

Conditions required to set DTC are:

Engine running.
No ECT or IAT DTCs are set.
Vehicle speed greater than one MPH.
ECT and IAT greater than 15.8°F (-9°C).
Start-up ECT is greater than 15.8°F (-9°C).