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Home › Infiniti › 2004 › QX56 RWD › Repair and Diagnosis › Engine Performance › System › Engine Control System › DTC P0128: Thermostat Function › DTC Confirmation Procedure › Testing Condition

Testing Condition

For best results, perform at ambient temperature of -10°C (14°F) or higher.
For best results, perform at engine coolant temperature of -10°C (14°F) to 60°C (140°F).