| Troubleshooting |
|
Symptom
|
Suspect Area
|
Reference
|
| Lower pedal or spongy pedal | 1. Integrated Brake Actuation Unit (Air in) | air·bleed |
| 2. AHB system (Fluid leaks) | replace | |
| 3. Piston seals in IBAU (Worn or damaged) | replace | |
| Brake drag | 1. Brake pedal free play (Minimum) | adjust |
| 2. Pad or lining (Cracked or distorted) | replace | |
| 3. Piston (Stuck) | replace | |
| 4. Piston (Frozen) | replace | |
| 5. Anchor or Return spring (Inoperative) | replace | |
| 6. Master cylinder (Inoperative) | replace | |
| 7. IBAU (Inoperative) | replace | |
| Brake pull | 1. Piston (Sticking) | replace |
| 2. Pad or lining (Oily) | replace | |
| 3. Piston (Frozen) | replace | |
| 4. Disc (Scored) | replace | |
| 5. Pad or lining (Cracked or distorted) | replace | |
| Hard pedal but brake inefficient | 1. Brake system (Fluid leaks) | repair |
| 2. Brake system (Air in) | air·bleed | |
| 3. Pad or lining (Worn) | replace | |
| 4. Pad or lining (Cracked or distorted) | replace | |
| 5. Rear brake shoe clearance(Out of adjustment) | adjust | |
| 6. Pad or lining (Oily) | replace | |
| 7. Pad or lining (Glazed) | replace | |
| 8. Disc (Scored) | replace | |
| 9. IBAU (Inoperative) | replace | |
| 10. PSU (Inoperative) | replace | |
| Noise from brake | 1. Pad or lining (Cracked or distorted) | replace |
| 2. Installation bolt (Loosen) | adjust | |
| 3. Disc (Scored) | replace | |
| 4. Sliding pin (Worn) | replace | |
| 5. Pad or lining (Dirty) | clean | |
| 6. Pad or lining (Glazed) | replace | |
| 7. Brake pad shim (Damage) | replace | |
| Brake fades | 1. Pad or lining (Worn) | replace |
| 2. Master cylinder (Inoperative) | replace | |
| Brake vibration, pulsation | 1. Pedal free play | adjust |
| 2. Master cylinder (Inoperative) | replace | |
| 3. Caliper (Damage) | replace | |
| 4. Master cylinder cap seal | replace | |
| 5. Damaged brake lines | replace | |
| Heavey pedal (Halt) | 1. Brake pedal sticking (lack of grease) | repair |
| 2. IBAU (Inoperative) | replace | |
| Motor sounds and excessive time to braking when consecutive 2 or 3 times pushing brake pedal (In the case of that accumulator pressure increase rate is under 5bar/sec when checking sensor figures of AHB with GDS) | 1. AHB system (air in) | air·bleed |
| 2. PSU (Inoperative) | replace | |
| Excessive noise when pushing brake pedal | 1. IBAU/PSU system (air in) | air·bleed |
It is not the malfunction of brake when motor sound is noticed with followings.
It is not the malfunction of brake while a brake pedal seems inoperative with followings.
|
Special Service Tools Tool (Number and Name) Illustration Use 09581-2T100Piston expanderSpreading the front and rear disc brake piston.
Integrated Electronic Brake (IEB) System Air Bleeding Procedures • Do not reuse the drained fluid.• Always use genuine DOT3 or DOT4 brake Fluid.
DescriptionThe temperature control actuator is located at the heater unit. It regulates the temperature by the procedure as follows. The signal from the control unit adjusts the position of the temperature door by operating the temperature switch. Then the temperature will be regulated by the hot/cold air ratio decided by the position of the temper
Component Location1. Blower unit assembly Components1. Duct Seal2. Intake duct case3. Air intake door assembly4. Intake door5. Seal6. Intake duct case (A)7. Air filter cover (A)8. Intake actuator9. Air filter cover10. Air filter 11. Blower unit pad12.