The PCM monitors the output signals from Oil Temperature Sensor every 15 seconds. If the signal is low for more than 12.5 seconds, the PCM sets a P0197 DTC.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Signal low | 1. Poor connection 2. Short to ground in harness 3. Faulty OTS 4. PCM | |
Enable Conditions | Case 1 |
•
Engine running longer than 60 sec.
•
Coolant temperature less than 110 ℃(230℉) | |
Case 2 |
•
Engine running longer than 90 sec. | ||
Threshold value |
•
Oil temperature sensor's signal less than 0.1V | ||
Diagnosis Time |
•
Continuous (More than 12.5 sec.failure for every 15 sec.test) | ||
MIL On Condition |
•
3 Driving Cycles | ||
