Oil Temperature Sensor For ECM: Testing and Inspection

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CVVT OIL TEMPERATURE SENSOR (OTS)

INSPECTION

FUNCTION AND OPERATION PRINCIPLE

The CVVT Oil Temperature Sensor (OTS) is a negative coefficient thermistor used by the PCM to measure engine oil temperature for the purpose of adjusting CVVT calculations.

Circuit Diagram:

SPECIFICATION

Specification:

CIRCUIT DIAGRAM

COMPONENT INSPECTION
1. Turn ignition switch OFF.
2. Disconnect OTS connector.
3. Remove the OTS.

4. After immersing the thermistor of the sensor into water (or engine coolant), measure resistance between OTS terminals 1 and 2.
5. Check that the resistance is within the specification.

Specification: Refer to SPECIFICATION.