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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 330 (4.7L - DTCS P0223 To P0593 - 1500) >> Diagnosis And Testing >> P0481-Cooling Fan 2 Control Circuit/Open >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2013 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

The Powertrain Control Module (PCM) controls the Cooling Fan 2 (High Speed) Relay by grounding the (N112) High Rad Fan Relay Control circuit when it is determined that high speed fan operation is required.

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