| Case 1 |
Main Action |
- Sensor signal stuck in range
|
- Faulty OTS
- Poor connection or damaged harness
|
| Prerequisite condition |
- Difference between highest and lowest modeled oil temperature is higher than 30 ~ 100 °C (86 ~ 212°F)
- Engine coolant temperature is higher than 82 °C (179°F).
- Coolant temperature (during start) is lower than 53.25 °C (181.85°F).
- Battery voltage is between 11V and 16V.
|
| Threshold value |
- Difference between highest and lowest modeled oil temperature is lower than 2 ~ 35 °C (35 ~ 95°F).
|
| Diagnosis Time |
- Maximum 13 Minutes (depending on starting temperature)
|
| Case 2 |
Main Action |
- Sensor signal is implausibly low
|
| Prerequisite condition |
- Coolant temperature (during start) is lower than 53.25 °C (181.85°F).
- Battery voltage is between 11V and 16V.
- Modeled oil temperature is higher than 70 °C (158°F).
|
| Threshold value |
- Measured oil temperature is lower than 20°C (68°F) when modeled oil temperature is higher than 70 °C (158°F)
|
| Diagnosis Time |
- Maximum 13 Minutes (depending on starting temperature)
|
| Case 3 |
Main Action |
- Sensor signal is implausibly high
|
| Prerequisite condition |
- Engine coolant temperature is lower than 70 °C (158°F).
- Battery voltage is between 11V and 16V.
|
| Threshold value |
- Measured oil temperature is higher than 100 °C (212°F).
|
| Diagnosis Time |
|
| Case 4 |
Main Action |
- Compare temperatures among temperature sensors (ECT, IAT, AAT) during start after long engine stop time
|
| Prerequisite condition |
- Battery voltage is between 11V and 16V.
- Engine stop time is longer than 480 minutes.
|
| Threshold value |
- Deviation between EOT and 2 other temperature sensors (ECT, AAT, IAT) is higher than 20°C (68°F) when deviation among other temperature sensors (ECT, AAT, IAT) is lower than 20°C (68°F).
|
| Diagnosis Time |
|
| MIL On Condition |
|