DTC P1604: Startability Malfunction [11/2016 - ]: Description

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If the engine does not start or it takes a long time for the engine to start, despite the ECM receiving the engine start request signal from the hybrid vehicle control ECU assembly via CAN communication, this DTC will be stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory
P1604	Startability Malfunction	Either of the following conditions is met (1 trip detection logic): The engine speed is less than 500 rpm with the engine start signal on for a certain amount of time (refer to the illustration below) After the engine starts (engine speed is 500 rpm or more), the engine speed drops to 200 rpm or less	-	Does not come on	DTC Stored