Nov 29, 2020 · Step 3: Replace an ABS Wheel Speed Sensor. If after testing the sensor or if you have scanned the ABS computer and get a trouble code C0035, C0040, C0041, C0045, C0046, C0050, C0051, C1221, C1222, C1223, C1224, C1225, C1226, C1227, C1228 , C1232, C1233, C1234 or C1235 the sensor is either unplugged or it has shorted out and needs replacement.