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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 218 (6.7L - DTCS P0420 To P1191 - 3500 Cab & Chassis) >> Diagnosis And Testing >> P0501-Vehicle Speed Sensor 1 Performance >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

The Powertrain Control Module (PCM) monitors the vehicle speed via the Anti-Lock Brake Module over the CAN BUS. When the PCM sees a high torque and high boost condition for a period of time and the vehicle speed has continually reported 0 MPH, a DTC is set. This monitor is a one trip fault.

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