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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> External Pages >> Different car >> Section 412 (Engine Cooling System) >> Diagnostic Information and Procedures >> DTC P1258: Engine Coolant Overtemperature - Protection Mode Active >> Conditions for Setting the DTC

Conditions for Setting the DTC

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The engine coolant temperature is above 132°C (270°F) for 10 seconds or more.