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

WARNING: This page is about a different car, the 2011 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P0115. Refer to DESCRIPTION .

DTC No.	DTC Detection Condition	Trouble Area
P0116	When either of the following conditions is met (2 trip detection logic): During engine warm up after cold engine starts, change in engine coolant temperature sensor output is below threshold In duration between warmed engine stopped and next cold engine starts, change in engine coolant temperature sensor output below threshold	Thermostat Engine coolant temperature sensor
For Mexico Models: 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) (a) Vehicle driven at varying speeds (accelerated and decelerated) (b) 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) (a) Vehicle driven at varying speeds (accelerated and decelerated) (b) ECT measurements remain within 1°C (1.8°F) of initial ECT on 6 successive occasions	Thermostat Engine coolant temperature sensor

DTC No.

DTC Detection Condition

Trouble Area

P0116

When either of the following conditions is met (2 trip detection logic):

During engine warm up after cold engine starts, change in engine coolant temperature sensor output is below threshold
In duration between warmed engine stopped and next cold engine starts, change in engine coolant temperature sensor output below threshold

Thermostat
Engine coolant temperature sensor

For Mexico Models:
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)

(a) Vehicle driven at varying speeds (accelerated and decelerated)
(b) 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)

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

Thermostat
Engine coolant temperature sensor