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Home >> Buick >> 1996 >> Roadmaster Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Diagnostic Trouble Code Charts >> DTC 28 - Wheel Speed Sensor Frequency Error >> Diagnostic Aids

Diagnostic Aids

Check for build-up of foreign material in gaps between teeth on toothed sensor ring. Check toothed sensor ring for large grooves, gouges and marks which may influence sensor ring signal. Excessive play in hub/bearing assembly may cause DTC to set.