1996 Audi A4 Base, AutomaticFACTORY OEM SERVICE PROCEDURE

DTC 00283 - Left/Front Wheel Speed Sensor

  1. Fault may be caused by the following;
    • Left/front wheel speed sensor or speed sensor rotor is dirty or damaged.
    • Left/front wheel speed sensor not properly installed.
    • Excessive wheel bearing play.
    • Faulty wheel speed sensor.
    • Open or short in wiring between wheel speed sensor and ABS control module.
    • Incorrect ABS control module identification.
  2. Perform a visual check on the above items. If inspection is inconclusive, check wheel speed sensor function. Using VAG 1551 scan tool, select function 08 - READ MEASURING VALUE BLOCK. Select DISPLAY GROUP 001. Drive vehicle to ensure all wheel speeds are within one km/h difference of each other. Raise and support vehicle. Check wheel speed value while rotating each wheel one at a time.
  3. Perform step 7) of CIRCUIT TEST  . If fault remains after performing circuit test, check wiring harness and connectors for poor contact and corrosion etc. If okay, check ABS control module identification. See ABS CONTROL MODULE  . If fault still exists, substitute known good control module and recheck for symptom and DTC.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.