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Home >> Chrysler >> 2012 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (3.6L - DTCS P0160 To P0481) >> Diagnosis And Testing >> P0481-Cooling Fan 2 Control Circuit >> Theory Of Operation

Theory Of Operation

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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.