05 Equinox C0041

I can't find a problem with the sensor or the connecting wire harness as I've read about in various posts. The resistance value across the sensor is within specs, the a/c voltage as the wheel turns is within specs, all sensors are reporting mph on a tech2. I clear the code and set the tech2 to record snapshot data when the code is triggered. Seems to happen at about 25 mph. The last trigger was set while driving straight, the abs light came on, the t/c light came on, C0041 was set again and when I checked the freeze frame data, FL, RL, RR wheel speed sensor reported 23 mph while the FR sensor reported 25 mph. Thanks in advance for any assistance.