DTC Detection Logic
WARNING: This page is about a different car, the 2012 Infiniti M35h. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- If DTC P0125 is displayed with P0117 or P0118, first perform the trouble diagnosis for DTC P0117 or P0118. Refer to
"DTC LOGIC ".
- If DTC P0125 is displayed with P0116, first perform the trouble diagnosis for DTC P0116. Refer to
"DTC LOGIC ".
| DTC No. |
Trouble diagnosis name (Trouble diagnosis content) |
DTC detecting condition |
Possible cause |
| P0125 |
ECT SENSOR [Insufficient engine coolant temperature for closed loop fuel control] |
- Voltage sent to ECM from the sensor is not practical, even when some time has passed after starting the engine.
- Engine coolant temperature is insufficient for closed loop fuel control.
|
- Harness or connectors (High resistance in the circuit)
- Engine coolant temperature sensor
- Thermostat
|