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

Refer to DTC P0115 (See DTC P0115 ENGINE COOLANT TEMPERATURE CIRCUIT MALFUNCTION; DTC P0117 ENGINE COOLANT TEMPERATURE CIRCUIT LOW INPUT; DTC P0118 ENGINE COOLANT TEMPERATURE CIRCUIT HIGH INPUT ).

DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE

DTC No.	DTC Detection Condition	Trouble Area
P0116	Case 1: Engine Coolant Temperature (ECT) between 35°C and 60°C (95°F and 140°F) when engine started, and conditions (a) and (b) met (2 trip detection logic): Vehicle driven at varying speeds (accelerated and decelerated) ECT remains within 3°C (5.4°F) of initial ECT Case 2: ECT more than 60°C (140°F) when engine started, and conditions (a) and (b) met (6 trip detection logic): Vehicle driven at varying speeds (accelerated and decelerated) ECT measurements remain within 1°C (1.8°F) of initial ECT on 6 successive occasions	Thermostat ECT sensor

DTC No.

DTC Detection Condition

Trouble Area

P0116

Case 1:
Engine Coolant Temperature (ECT) between 35°C and 60°C (95°F and 140°F) when engine started, and conditions (a) and (b) met (2 trip detection logic):

Vehicle driven at varying speeds (accelerated and decelerated)
ECT remains within 3°C (5.4°F) of initial ECT

Case 2:
ECT more than 60°C (140°F) when engine started, and conditions (a) and (b) met (6 trip detection logic):

Vehicle driven at varying speeds (accelerated and decelerated)
ECT measurements remain within 1°C (1.8°F) of initial ECT on 6 successive occasions

Thermostat
ECT sensor