DTC Diagnosis Procedure
WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK ENGINE COOLANT TEMPERATURE SENSOR
Check the engine coolant temperature sensor. Refer to Component Inspection .
Is the inspection result normal?
YES
GO TO 2.
NO
Replace engine coolant temperature sensor. Refer to Exploded View .
- CHECK THERMOSTAT OPERATION
When the engine is cold [lower than 70 deg.C (158 deg.F)] condition, grasp lower radiator hose and confirm the engine coolant does not flow.
Is the inspection result normal?
YES
Check intermittent incident. Refer to Intermittent Incident .
NO
Repair or replace thermostat. Refer to Removal and Installation .