If output voltage of oil Temp. sensor is higher than threshold value for more than 3 sec., ECM sets DTC P01980000. This fault might be caused by open/short to power in signal circuit or open in ground circuit of OTS.

Item	Detecting Condition		Possible Cause
DTC Strategy	• Voltage Monitoring		1. Open or short to power in signal circuit of OTS 2. Open in ground circuit of OTS 3. Defected OTS
Enable Condition	• Engine running
Threshold Value	• Output signal value is higher than threshold value • Open in signal circuit
Detecting Time	• 3 sec
Fail Safe	Fuel Cut	NO
	EGR Off	NO
	Fuel Limit	NO
	Check Lamp	• Off