1991 Ford Probe GL, StandardFACTORY OEM SERVICE PROCEDURE

P-3 Check Abs Control Unit

Disconnect hydraulic control unit. Turn ignition on. Measure voltage at ABS control unit Yellow/White, Yellow/Red, Yellow/Green, Blue, Black/White and Brown terminals. If voltage is greater than 10 volts, replace ABS control unit. If voltage is less than 10 volts, replace hydraulic control unit.

Factory Service Tools

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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.