P0197
DTC P0197 ENGINE OIL TEMPERATURE SENSOR CIRCUIT LOW1. OUTLINE OF DIAGNOSIS
Detect open or short circuit of engine oil temperature sensor.
Judge NG when out of the standard value
2. ENABLE CONDITION
3. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
4. DIAGNOSTIC METHOD
Judge NG when the continuous time of completing malfunction criteria becomes more than 0.5 seconds.
Judge OK and clear NG when the malfunction criteria is not completed.
5. DTC CLEAR CONDITION
- When the OK idling cycle was completed 40 times in a row
- When "Memory Clear" was performed
6. MALFUNCTION INDICATOR LIGHT CLEAR CONDITION
- When the OK idling cycle was completed 3 times in a row
- When "Memory Clear" was performed
7. FAIL SAFE
Oil temperature sensor process: Make the engine oil temperature 70 degree C (158 degree F)
8. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)