Operation CHARM: Car repair manuals for everyone.

Unexpected Pedal Reaction





UNEXPECTED PEDAL REACTION


Diagnosis Procedure

1.CHECK BRAKE PEDAL STROKE
Check brake pedal stroke. Inspection And Adjustment.
Is the stroke too big?
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. Refer to brake pedal Inspection And Adjustment, brake booster Procedures and master cylinder Procedures.
NO - GO TO 2
2.CHECK FUNCTION
Disconnect ABS actuator and electric unit (control unit) connector to deactivate ABS. Check if braking force is normal in this condition.Connect connector after inspection.
Is the inspection result normal?
YES - GO TO procedure 3 "CHECK WHEEL SENSOR AND SENSOR ROTOR" of symptom 1. Excessive ABS Function Operation Frequency.
NO - Check brake system.