General Information

Engine Control
P0198 Engine Oil Temperature Sensor High Input - General Information

Component Location





General Description

The fluid of the CVVT is the engine oil and its density changes according to the engine oil temperature. At this time the Oil Temperature Sensor (OTS) helps compensation against the temperature differences. The Oil Temperature Sensor measures the engine oil temperature before the engine oil comes into the Oil-flow Control Valve (OCV).
According to the measured temperature, the Engine Control Module (ECM) compensates the oil-flow control valve operation time.

DTC Description

ECM sets DTC P0198 if the ECM detects engine oil temperature signal circuit is open or short to battery.

DTC Detecting Condition





Diagnostic Circuit Diagram





Signal Waveform & Data