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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 953 (5.7L CNG - DTCS P2127 To U147B - 2500 Hd) >> Diagnosis And Testing >> U1120-Lost Wheel Distance Message >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

The Powertrain Control Module (PCM) receives wheel speed and wheel distance CAN C bus messages from the Anti-lock Brake (ABS) module.

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