DTC P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control: Description
A thermistor is built into the Engine Coolant Temperature (ECT) sensor, and its resistance value varies according to the ECT.
The structure of the sensor and its connection to the ECM are the same as those of the Intake Air Temperature (IAT) sensor.
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0125 | Engine coolant temperature (ECT) does not reach closed-loop enabling temperature for 20 minutes (this period varies with ECT when engine start) |
|