P0501 Fault in 2004 Dodge Ram 5.7L 4x4: Speed Sensor Issue and Odometer Failure

Model: 04 Dodge Ram 5.7 4x4 Fault Code: P0501 Posted: 2013-12-27 17:57

I'm experiencing a P0501 diagnostic trouble code on my 2004 Dodge Ram 5.7L V8 4x4. I've already replaced both speed sensors, but the speedometer and odometer are not functioning. The ABS and brake lights remain off. Both speed sensors have been tested with good ohm readings. At the rear wheel speed sensor location on the differential, I'm measuring 3.588 volts at the input terminal. Despite these checks, the vehicle still shows P0501 and no display on the speedometer or odometer. I'm seeking advice on possible root causes beyond sensor replacement.