Hydraulic Unit

2001 Mitsubishi Mirage LS, 4D Sedan, StandardSECTION Hydraulic Unit
CAUTION: Turn ignition switch to LOCK position before connecting or disconnecting MUT-11 tester or scan tool.
  1. Lift vehicle and support on jack stands placed at proper support points for this vehicle. If using braking force tester, place front wheels on rollers. Rollers and tires must be dry during testing. When testing front brakes, engage parking brake. When testing rear brakes, stop front wheels by using a wheel chock.
  2. Release parking brake, and feel drag force (drag torque) on each road wheel. When using braking force tester, take a reading of the brake force.
  3. Turn ignition key to LOCK position and set MUT-II tester or scan tool. After checking that shift lever or selector is in "N" or neutral position, start engine. Choose wheel to be tested, by choosing MUT-II or scan tool test No. 1-4. Use scan tool to force drive the wheel actuator. During actuator test, ABS warning light will remain illuminated and anti-lock control will be deactivated. When ABS has been interrupted by fail-safe function, scan tool actuator testing cannot be used.
  4. Turn wheel by hand and check the change in braking force when brake pedal is depressed. When using braking force tester, depress brake pedal until brake force is at the following values, and verify braking force decreases when actuator is force driven. Front wheel is 176-220 Lbs. (785-981 N.m). Rear wheel is 66-110 Lbs. (294-490 N.m). Brake force should be released for 3 seconds after locking.
RENDER: 1.0x

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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.