Index Subaru Subaru Impreza 3 / Impreza WRX / Impreza WRX STI - service repair manual 2008-2014 year
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VDC-25 Front ABS Wheel Speed Sensor VEHICLE DYNAMICS CONTROL (VDC) 2. ABS WHEEL SPEED SENSOR 1) Check the tip of the ABS wheel speed sensor for foreign particles or damage. If necessary, clean the tip or replace the ABS wheel speed sensor. 2) Check the ABS wheel speed sensor cable for discontinuity. If defective, replace the ABS wheel speed sensor. 3) Connect a 12 V power supply to No. 2 terminal of sensor connector as shown in the figure, then at- tach resistance to the No. 1 terminal. Rotate the wheel at about 2.75 km/h (2 MPH), and measure the voltage using an oscilloscope. 0.7 — 1.4 V 4) Replace the ABS wheel speed sensor if the in- spection result is not within the standard value. (1) Oscilloscope ABS00388 (2) (1) 100 1.4 V 0.7 V 12 V 2 1 1 2 |