Brake System Problem Symptoms Table - Toyota Avensis ZZT251 2003 Service And Repair Manual

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PROBLEM SYMPTOMS TABLE
Use the table below to help you find the cause of the problem. The numbers indicate the probability of the
problems in descending order. Check each part in order. If necessary, replace these parts.
Symptom
Low pedal or spongy pedal
Brake drag
Brake pull
Hard pedal but brake inefficient
AVENSIS REPAIR MANUAL (RM1018E)
BRAKE – BRAKE SYSTEM
Suspect Area
3. Fluid leaks in brake system
4. Air in brake system
5. Piston seals (Worn or damaged)
6. Brake master cylinder (faulty)
7. Brake booster push rod (Out of adjustment)
1. Brake pedal free play (Minimal)
2. Parking brake lever travel (Out of adjustment)
3. Parking brake wire (Sticking)
4. Disk brake pad (Cracked or distorted)
5. Piston (Stuck or Frozen)
6. Brake booster push rod (Out adjustment)
7. Vacuum leaks in brake booster system
8. Brake master cylinder (Faulty)
1. Piston (Stuck or Frozen)
2. Pad or lining (Oily)
3. Disc (Scored)
4. Pad (Cracked or distorted)
1. Fluid leaks in 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. Booster push rod (Out of adjustment)
9. Vacuum leaks for booster system
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