Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
Start by checking for coolant leaks, if there are not leaks the thermostat might be stuck open or closed and may need to be replaced, you still have an issue the engine coolant temp sensor or cylinder head temp sensor.
To diagnose the P0125 2007 Ford Fusion code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.
The voltage sent to Engine Control Module (ECM) from the Engine Coolant Temperature (ECT) sensor is not practical, even when some time has passed after starting the engine. The engine is taking too long to reach the normal temperature level.
Indicates the engine coolant temperature (ECT) or the cylinder head temperature (CHT)sensor has not achieved the required temperature level to enter closed loop operating conditions within a specified amount of time after starting the engine.
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