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Home >> Geo >> 1996 >> Tracker Base, 4D Utility, 4WD, Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System - 4-Wheel >> Testing >> Motor Pack Function Test

Motor Pack Function Test

Remove hydraulic modulator/motor pack assembly and separate motor pack from hydraulic modulator. See MODULATOR DRIVE GEAR & MOTOR PACK  under REMOVAL & INSTALLATION. Using Tech 1, rotate each motor in both directions. If any motor does rotate in either direction, replace motor pack. If all 3 motors operate, rotate each gear on hydraulic modulator. See NO GEAR MOVEMENT TEST  .