1993 Geo Prizm Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Motor Pack Function Test

Using TECH-1 scan tester, rotate 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. If gear does not move, see NO GEAR MOVEMENT TEST.

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When to See a Mechanic

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

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