Diagnosis Procedure
WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DTC PRIORITY
If DTC P0125 is displayed with DTC P0117 or P0118, first perform the confirmation procedure (trouble diagnosis) for DTC P0117 or P0118.
Is applicable DTC detected?
YES
Perform diagnosis of applicable.
- DTC P0117: Refer to DTC Description .
- DTC P0118: Refer to DTC Description .
NO
GO TO 2.
- CHECK ENGINE COOLANT TEMPERATURE SENSOR
Refer to Component Inspection (Engine Coolant Temperature Sensor) .
Is the inspection result normal?
YES
GO TO 3.
NO
Replace engine coolant temperature sensor. Refer to Exploded View .
- CHECK THERMOSTAT
Check thermostat. Refer to Removal and Installation .
Is the inspection result normal?
YES
INSPECTION END
NO
Replace thermostat assembly. Refer to Removal and Installation .