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

NOTE: For circuit reference, see WIRING DIAGRAMS article.

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 for setting DTC:

Engine running.
No ECT or IAT DTCs are set.
Vehicle speed greater than one MPH.
ECT and IAT greater than -40°F (-40°C).
Start-up ECT is -40°F (-40°C) or less.