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Home >> Chrysler >> 2002 >> Intrepid Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0128: Thermostat Rationality >> Monitored & Set Conditions

Monitored & Set Conditions

Coolant temperature is monitored with engine running. The PCM predicts a coolant temperature value that it compares to the actual coolant temperature. If the 2 coolant temperature values are not within 10°F of each other, DTC will set. DTC is a two trip fault.

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