DTC P0524-77: Engine Oil Pressure Too Low (Severe); DTC P15F0-09: Engine Oil Pressure Too Low (Moderate); DTC P15F0-77: Engine Oil Pressure Too Low (Minor); DTC P15F1-09: Variable Oil Pump Component Failure; DTC P15F1-77: Variable Oil Pump Commanded Position Not Reachable [07/2019 - 10/2019]: Description

Variable oil pump control uses the oil pressure control valve assembly, engine oil temperature sensor, oil pressure sensor and ECM to optimize the oil pressure and oil volume required by each component to reduce friction by monitoring the engine temperature and engine speed.

The ECM drives the oil pressure control valve assembly based on the oil pressure measured by the oil pressure sensor. The oil pressure is controlled by operating the oil pressure control valve assembly to regulate the amount of discharge oil.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P0524-77	Engine Oil Pressure Too Low (Severe)	When the engine is running, the oil pressure value output from the oil pressure sensor is less than the target value (1 trip detection logic).	Oil pressure control valve assembly Oil pump assembly Oil pressure and temperature sensor (oil pressure sensor)1 Oil pressure sender gauge assembly (Oil pressure sensor)2 The engine oil level is low The engine oil has deteriorated ECM	Comes on	DTC stored	SAE Code: P0524
P15F0-09	Engine Oil Pressure Too Low (Moderate)	When the engine is running, the oil pressure value output from the oil pressure sensor is less than the target value (1 trip detection logic).	Oil pressure control valve assembly Oil pump assembly Oil pressure and temperature sensor (oil pressure sensor)1 Oil pressure sender gauge assembly (Oil pressure sensor)2 The engine oil level is low The engine oil has deteriorated ECM	Does not come on	DTC stored	SAE Code: P15F0
P15F0-77	Engine Oil Pressure Too Low (Minor)	When the engine is running, the oil pressure value output from the oil pressure sensor is less than the target value (1 trip detection logic).	Oil pressure control valve assembly Oil pump assembly Oil pressure and temperature sensor (oil pressure sensor)1 Oil pressure sender gauge assembly (Oil pressure sensor)2 The engine oil level is low The engine oil has deteriorated ECM	Does not come on	DTC stored	SAE Code: P15F0
P15F1-09	Variable Oil Pump Component Failure	When the piston oil jets are spraying oil (engine speed is 3000 rpm or more), the oil pressure is less than specified (1 trip detection logic).	Oil pressure control valve assembly Oil pump assembly Oil pressure and temperature sensor (oil pressure sensor)1 Oil pressure sender gauge assembly (Oil pressure sensor)2 The engine oil level is low The engine oil has deteriorated ECM	Does not come on	DTC stored	SAE Code: P15F1
P15F1-77	Variable Oil Pump Commanded Position Not Reachable	When the engine is running, the target value and the value output by the oil pressure sensor differ by more than the threshold (1 trip detection logic).	Oil pressure control valve assembly Oil pump assembly Oil pressure and temperature sensor (oil pressure sensor)1 Oil pressure sender gauge assembly (Oil pressure sensor)2 The engine oil level is low The engine oil has deteriorated ECM	Does not come on	DTC stored	SAE Code: P15F1

*1: for TMC Made
*2: for TMMK Made

RELATED DATA LIST/FREEZE FRAME DATA

DTC No.	Data List/Freeze Frame Data
P0524-77	Engine Speed Engine Oil Temperature Sensor Coolant Temperature Engine Oil Pressure Engine Oil Pressure Control Valve Target Engine Oil Pressure
P15F0-09
P15F0-77
P15F1-09
P15F1-77