P0117
DTC P0117 - ENGINE COOLANT TEMPERATURE CIRCUIT LOW INPUT1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of engine coolant temperature sensor.
Judge NG when out of the standard value.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITION
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
Judge NG when the continuous time until completing the malfunction criteria becomes more than the time (2.5 seconds) needed for diagnosis.
Judge fail safe NG when the continuous time until completing the malfunction criteria becomes more than the time (0.2 seconds) needed for diagnosis. Judge OK and clear the NG when the malfunction criteria are not completed.
6. DTC CLEAR CONDITION
- When the OK idling cycle was completed 40 times in a row
- When "Clear Memory" was performed
7. MALFUNCTION INDICATOR LIGHT CLEAR CONDITION
- When the OK driving cycle was completed 3 times in a row
- When "Clear Memory" was performed
8. FAIL SAFE
Keep the engine coolant temperature at 70 degree C (158 degree F).
9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)