| Main Action |
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- Faulty OTS
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| Case 1 |
Prerequisite condition |
- Battery voltage is between 6V and 16V.
- Difference between highest and lowest Modelled oil temperature is greater than 30 to 100°C (86 to 212°F).
- Engine Coolant temperature (ECT) or Modelled ECT is higher than 90°C (194°F)
- ECT during starting engine is lower than 53.25°C (127.85°F)
|
| Threshold Value |
- Sensor signal is stuck in range.
- The difference between highest and lowest temperature measured Is lower than 2°C (35.6°F) to 35°C (63°F)
|
| Diagnosis Time |
- Maximum 13minutes (depends on starting temperature)
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| Case 2 |
Prerequisite condition |
- Battery voltage is between 6V and 16V.
- ECT during starting engine is lower than 40°C (104°F).
- Modelled oil temperature is higher than 70°C (158°F).
|
| Threshold Value |
- Sensor signal is implausibly low.
- Engine Oil Temperature (EOT) is lower than 20°C (68°F).
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| Diagnosis Time |
|
| Case 3 |
Prerequisite condition |
- Battery voltage is between 6V and 16V.
- ECT is higher than 70°C (158°F).
|
| Threshold Value |
- Sensor signal is implausibly high.
- EOT Is higher than 100°C (212°F).
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| Diagnosis Time |
|
| Case 4 |
Prerequisite condition |
- Battery voltage is between 11V and 16V.
- Elapsed time after engine stop is longer than 480 minutes.
- ECT drop in 15 seconds after engine starts is lower than 2°C (35.6°F).
|
| Threshold Value |
- Difference between EOT and one of 3 other temperature sensors (ECT, AAT and IAT) is greater than 20°C (68°F) and
- Deviation among other temperature sensors (ECT, AAT and IAT) is lower than or equal to 20°C (68°F)
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| Diagnosis Time |
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| MIL On Condition |
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