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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 603 (3.0L Diesel - DTCS P2455-00 To U1489-00 - 1500) >> Diagnosis And Testing >> U0284-00-Lost Communication With Active Grille Shutter Module 1 >> When Monitored

When Monitored

WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

With the engine running and battery voltage between 11.0 and 16.0 volts. Ambient Air Temperature or Engine Coolant Temperature above -7°C (19.4°F).