Unexpected Pedal Reaction

UNEXPECTED PEDAL REACTION

Diagnosis Procedure


1. CHECK BRAKE PEDAL STROKE

Check brake pedal stroke. Adjustments.
Is the stroke too large?
YES- - Bleed air from brake tube and hose. Service and Repair.
- Check brake pedal, brake booster, and master cylinder for mount play, looseness, brake system fluid leakage, etc.
- Brake fluid: Removal and Replacement.
- Brake pedal: Adjustments.
- Brake master cylinder: Inspection.
- Brake booster: Inspection.
- Front disc brake: Inspection (1 piston type), Inspection (4
piston type).
- Rear disc brake: Inspection
(1 piston type), Inspection (2 piston type).
NO- GO TO 2.

2. CHECK FUNCTION

Disconnect ABS actuator and electric unit (control unit) harness connector to deactivate ABS. Check if braking force is normal in this condition. Connect harness connector after inspection.
Is the inspection result normal?
YES- Normal
NO- Check brake system.