LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 1992 >> Roadmaster Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Symptom Diagnosis >> Code 25: Left Front Wheel Speed Sensor Fault >> Test Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test Description

Numbers below refer to circled numbers in diagnostic chart.

  1. Checks for correct resistance reading of wheel sensor.
  2. Checks for short in wheel speed sensor wiring.
  3. Checks for open, high resistance or short to voltage in wires between wheel speed sensor and EBCM.
  4. Checks for short to ground in circuit No. 830.
  5. Checks for intermittent in wheel sensor circuit. If no intermittent is found, wheel sensor may be faulty. Replace wheel sensor and road test vehicle. If code returns, replace EBCM.