P0118
DTC P0118 ENGINE COOLANT TEMPERATURE CIRCUIT HIGH INPUT1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of the engine coolant temperature sensor.
Judge as NG if it is out of specification.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
Judge as NG when the continuous time until completing the malfunction criteria becomes 0.5 second or more. Judge as OK and clear the NG when the malfunction criteria are not met.
6. DTC CLEAR CONDITION
- When the OK idling cycle is completed 40 times in a row
- When "Clear Memory" is performed
7. MALFUNCTION INDICATOR LIGHT CLEAR CONDITIONS
- When the OK driving cycle is completed 3 times in a row
- When "Clear Memory" is performed
8. FAIL SAFE
- Engine coolant temperature sensor process: Engine coolant temperature is fixed at 70 degrees C (158 degrees F).
- ISC Feedback: Calculate target engine RPM as engine coolant temperature 70 degrees C (158 degrees F).
- ISC learning: Not allowed to learn.
- Air conditioner control: Not allowed to turn the air conditioner to ON.
- Radiator fan control: Send the duty signal 50% to the controller.
9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)