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Home >> Porsche >> 2007 >> Cayman (987) F6-2.7L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Coolant Temperature Sensor/Switch (For Computer) >> Testing and Inspection >> Engine Coolant Temperature Sensor Monitoring
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Engine Coolant Temperature Sensor Monitoring



Engine Coolant Temperature Sensor Monitoring

Range Check
The engine coolant temperature is electrical O.K., if the following condition is true:

Diagnosis threshold min. < engine coolant temperature < Diagnosis threshold max.







Plausibility Check low-side
The engine coolant temperature is plausible, if:

(reference temperature - threshold) < engine coolant temperate







Plausibility Check high-side
The engine coolant temperature is plausible, if:

(engine coolant temperature - reference temperature) > threshold







flow chart:





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