April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC P0116: Engine Coolant Temperature Circuit Range / Performance Problem: Procedure

CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC P0116)

Result

Result	Proceed to
P0116	A
P0116 and other DTCs	B

B → See step 3

A: Go to next step

INSPECT THERMOSTAT
1. Remove the thermostat. Refer to INSPECTION .
2. Check the valve opening temperature of the thermostat.
  OK
  
  Temperature value is 80 to 84°C (176 to 183°F)
  
  HINT:
  
  In addition to the above check, confirm that the valve is completely closed when the temperature is below the standard.
NG → See step 4

OK → See step 5
GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART
REPLACE THERMOSTAT. Refer to REMOVAL
REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to REMOVAL