
BR-2
BRAKE - TROUBLESHOOTING
TROUBLESHOOTING
BR0I5-03
PROBLEM SYMPTOMS TABLE
Use the 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.
Symptom Suspect Area See page
4. Fluid leaks for brake system DI-256
5. Air in brake system BR-4
6. Piston seal or cup (Worn or damaged) BR-28
Lower pedal or spongy pedal BR-34
7. Rear brake shoe clearance (Out of adjustment) BR-38
8. Master cylinder (Faulty) BR-12
9. Booster push rod (Out of adjustment) BR-23
1. Brake pedal freeplay (Minimal) BR-6
2. Parking brake pedal travel (Out of adjustment) BR-8
3. Parking brake wire (Sticking) -
4. Rear brake shoe clearance (Out of adjustment) BR-38
5. Pad or lining (Cracked or distorted) BR-25
BR-34
6. Piston (Stuck) BR-28
Brake drag
BR-34
7. Piston (Frozen) BR-28
BR-34
8. Anchor or return spring (Faulty) BR-34
9. Booster push rod (Out of adjustment) BR-23
10.Vacuum leaks for booster system BR-21
11.Master cylinder (Faulty) BR-12
1. Piston (Stuck) BR-28
BR-34
2. Pad or lining (Oily) BR-25
BR-34
3. Piston (Frozen) BR-28
Brake pull
BR-34
4. Disc or drum (Scored) BR-31
BR-37
5. Pad or lining (Cracked or distorted) BR-25
BR-34
1. Fluid leaks for brake system DI-256
2. Air in brake system BR-4
3. Pad or lining (Worn) BR-25
BR-34
4. Pad or lining (Cracked or distorted) BR-25
BR-34
5. Rear Brake shoe clearance (Out of adjustment) BR-38
Hard pedal but brake inefficient 6. Pad or lining (Oily) BR-25
BR-34
7. Pad or lining (Glazed) BR-25
BR-34
8. Disc or drum (Scored) BR-31
BR-37
9. Booster push rod (Out of adjustment) BR-23
10.Vacuum leaks for booster system BR-21
2001 SIENNA (RM787U)
Author : Date : 1345
BR-3
BRAKE - TROUBLESHOOTING
Symptom Suspect Area See page
1. Pad or lining (Cracked or distorted) BR-25
BR-34
2. Installation bolt (Loose) BR-28
3. Disc or drum (Scored) BR-31
BR-37
4. Pad support plate (Loose) BR-25
5. Sliding pin (Worn) BR-28
Noise from brake
6. Pad or lining (Dirty) BR-25
BR-34
7. Pad or lining (Glazed) BR-25
BR-34
8. Anchor or return spring (Faulty) BR-34
9. Anti-squeal shim (Damaged) BR-25
10.Shoe hold-down spring (Damaged) BR-34
2001 SIENNA (RM787U)
Author : Date : 1346