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Problem Symptoms Table

Use table below to help you find the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts.

PROBLEM SYMPTOMS TABLE - BRAKE SYSTEM

Symptom Suspect Area
Low pedal or spongy pedal
  1. 6. Fluid leaks in brake system
  2. 7. Air in brake system
  3. 8. Piston seals (Worn or damaged)
  4. 9. Hydraulic brake booster (Faulty)
Brake drag
  1. Brake pedal free play (Minimum)
  2. Parking brake pedal travel (Out of adjustment)
  3. Parking brake wire (Sticking)
  4. Parking brake (Shoe clearance out of adjustment)
  5. Pad (Cracked or distorted)
  6. Piston (Stuck)
  7. Piston (Frozen)
  8. Tension or return spring (Faulty)
  9. Hydraulic brake booster (Faulty)
Brake pull
  1. Piston (Stuck)
  2. Pad (Cracked or distorted)
  3. Piston (Frozen)
  4. Disc (Scored)
  5. Pad (Cracked or distorted)
  6. Hydraulic brake booster (Faulty)
Hard pedal but brake inefficient
  1. Fluid leaks for brake system
  2. Air in brake system
  3. Pad (Worn)
  4. Pad (Cracked or distorted)
  5. Pad (Oily)
  6. Pad (Glazed)
  7. Disc (Scored)
  8. Hydraulic brake booster (Faulty)
Noise from brakes
  1. Pad (Cracked or distorted)
  2. Installation bolt (Loose)
  3. Disc (Scored)
  4. Pad support plate (Loose)
  5. Sliding pin (Worn)
  6. Pad (Dirty)
  7. Pad (Glazed)
  8. Tension or return spring (Faulty)
  9. Anti-squeal shim (Damaged)
  10. Shoe hold-down spring (Damaged)
Noise from hydraulic brake booster (Abnormal pump motor operation noise) Accumulator bracket clearance (Out or adjustment)
Brake warning light lights up(1) (Parking brake pedal released)
  1. Brake fluid level
  2. Hydraulic brake booster power supply system (Faulty)
Brake warning light lights up and brake warning buzzer sounds(2) Hydraulic brake booster power supply system (Faulty)
ABS warning light lights up(3)
  1. Anti-lock brake system (Faulty)
  2. Hydraulic brake booster power supply system (Faulty)
(1) *1 , *3 : The light may stay on for about 60 seconds after the engine has been started. It is normal if it goes out after a while.

(2) *2 , *3 : Depressing the brake pedal repeatedly may turn on the warning light and buzzer. It is normal if the light goes out and the buzzer stops sounding after a few seconds.

(3) While ABS warning light is ON, both VSC warning light and VSC OFF indicator light come on.
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