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Home >> Mercedes Benz >> 1989 >> 560SL >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Testing >> Test 5 >> Testing Internal Resistance Of Speed Sensor

Testing Internal Resistance Of Speed Sensor

  1. Multimeter set to "OHMS" position. Ignition on. Rotary switch moved successively to positions 4 (left front wheel), 5 (right front wheel) and 6 (rear differential).
  2. Internal resistance:
    • Front Wheel 1100-2300 ohms.
    • Rear Differential 600-1600 ohms.
  3. If resistance is less than or more than step 2), check coaxial plug or cable connector and connecting lines. Replace speed sensor or adjust wheel bearing play.
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