Unexpected Brake Pedal Reaction

UNEXPECTED BRAKE PEDAL REACTION

Description

A malfunction of brake pedal feel (height or others) is detected when the brake pedal is depressed.


Diagnosis Procedure


1. CHECK AXLE

Check that there is no significant looseness of axle.
- Front axle: Inspection.
- Rear axle: Testing and Inspection.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace error-detected parts.

2. CHECK DISC ROTOR

Check disc rotor runout.
- Front: Front Disc Brake.
- Rear: Rear Disc Brake.
Is the inspection result normal?
YES- GO TO 3.
NO- Grind disc rotor.

3. CHECK BRAKE FLUID LEAKAGE

CHECK BRAKE FLUID LEAKAGE
- Front: Inspection.
- Rear: Inspection.
Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace error-detected parts.

4. CHECK BRAKE PEDAL

Check the brake pedal items. Adjustments.
Is the inspection result normal?
YES- GO TO 5.
NO- Adjust the brake pedal items. Adjustments.

5. CHECK BRAKING FORCE

Check the braking force.
Is the inspection result normal?
YES- GO TO 6.
NO- Check each component of brake system.

6. CHECK BRAKE PERFORMANCE

Disconnect ABS actuator and electric unit (control unit) connector so that ABS does not operate. Check that brake force is normal in this condition. Connect harness connectors after checking.
Is the inspection result normal?
YES- Normal
NO- Check each component of brake system.