ABNORMALITY OF COOLANT TEMPERATURE SENSOR CHARACTERISTIC (DTC CODE P0116 / DIAGNOSIS MONITOR CODE 11)

1. Check that the engine coolant temperature sensor is normally installed.
2. Check the engine coolant temperature sensor measurement portion for dirt and foreign matters.
   
   

NO Improper installation of the sensor.	YES Proceed to [2] Check installation of the connector.

1. Check that the engine coolant temperature sensor connector is properly installed.
   
   

NO Improper connection of connector	YES Proceed to [3] Check whether the sensor is in normal condition.

1. Troubleshoot the P0117 and P0118 and check whether the engine coolant temperature sensor is in normal condition.
   
   

NO Fault in engine coolant temperature sensor	YES Proceed to [4] Check whether other are in normal condition.

1. If the GND terminal is shared in use, disconnect all sensor connectors (intake air temperature sensor (air flow sensor built-in)) that use the GND terminal and check whether condition is normal.
   

NO Fault in engine ECU	YES Fault in other sensors/Wrong wiring

1. Confirm the DTC P0116 is inactive

   • Start the engine and let it idling condition.
   • Verify the DTC P0116 is inactive.

   

2. DTC Clear

   • Clear the DTC with Hino DX
   • Confirm the same DTC is not reoccurred

   

P0116 is reoccur: Return to first process Other DTC appear: Refer to concerned Trouble shooting

Complete