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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 102 ((Totally Integrated Power Module (TIPM) - Electrical Diagnostics - 1500, 2500 & 3500)) >> Diagnosis and Testing >> P0691-Cooling Fan 1 Control Circuit Low >> Theory of Operation

Theory of Operation

WARNING: This page is about a different car, the 2011 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.

The Powertrain Control Module (PCM) sends a CAN bus message to the Totally Integrated Power Module (TIPM) requesting low speed cooling fan operation. The TIPM internally grounds the coil for the Low Speed Cooling Fan Relay. The Low Speed Cooling Fan Relay then provides battery voltage to the low speed coil in the Cooling Fan Motor.

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