DTC P2681-11: Engine Coolant Bypass Valve Circuit Short to Ground; DTC P2681-15: Engine Coolant Bypass Valve Circuit Short to Battery or Open [11/2021 - 03/2022]: Description

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The flow shutting valve used for the variable cooling system is a magnet type valve that is closed when the engine is warming up to prevent coolant from flowing through the heater passage which reduces engine warm up time.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Note
P2681-11	Engine Coolant Bypass Valve Circuit Short to Ground	All of the following conditions are met (1 trip detection logic). An open signal is being sent from the ECM to the flow shutting valve. Current operating state and target operating state differ for 3 seconds or more continuously.	Open or short in flow shutting valve (water by-pass hose assembly) circuit Flow shutting valve (water by-pass hose assembly) ECM	Does not come on	SAE Code: P2682
P2681-15	Engine Coolant Bypass Valve Circuit Short to Battery or Open	All of the following conditions are met (1 trip detection logic). A close signal is being sent from the ECM to the flow shutting valve. Current operating state and target operating state differ for 3 seconds or more continuously.	Open or short in flow shutting valve (water by-pass hose assembly) circuit Flow shutting valve (water by-pass hose assembly) ECM	Does not come on	SAE Code: P2683

RELATED DATA LIST

DTC No.	Data List
P2681-11 P2681-15	Coolant Temperature
P2681-11 P2681-15	Coolant Water Route Switching Valve