Step
| Action
| Normal Result(s)
| Abnormal Result(s)*
|
1
| Check the master cylinder
fluid level.
| Master cylinder fluid level between ADD and FULL.
| Master Cylinder Reservior Filling.
|
2
| Check the
power steering fluid level.
| Power steering fluid level between ADD and FULL.
| Fluid Level Adjustment in Power
Steering System.
|
3
| Perform Hydraulic Booster Fuctional Test. Refer to
Hydraulic Booster Functional Test
.
| Brake pedal falls away and
then pushes back.
| Accumulator Leak-Down System Not Holding Charge.
|
4
|
- Turn ignition OFF.
- Park brake not applied.
- Start the engine.
| Brake warning
indicator illuminates briefly (approximately 5 seconds).
|
| • | Brake Warning Indicator Always ON. |
| • | Brake Warning Indicator Inoperative. |
|
5
| With
the vehicle in PARK, perform the Brake Pedal Travel Test. Refer to
Brake Pedal Travel
.
|
| • | Brake pedal moves steadily towards floor, approximately 2-3 in. |
| • | Brake pedal stops and is firm against the pressure (Hydraulic
brake booster may hiss or clunk/click/clatter with high brake pedal effort). |
|
| • | Brake Pedal Excessive Travel. |
| • | Brake Pedal Travel Gradually Increases. |
| • | Brake Pedal Excessive Effort. |
| • | Hydraulic Brake Booster Noisy. |
|
6
| Press
the brake pedal.
| Brake pedal returns to normal height.
| Brake Pedal Slow Return.
|
7
|
Important: : Ensure that the front end alignment is correct before testing the brake
system.
- Press the brake pedal.
- Shift the vehicle into DRIVE.
- Test the brakes at different speeds with light pedal pressure
and with heavy pedal pressure on a dry, clean, reasonably smooth and level
roadway.
|
| • | Braking action starts after applying the brakes. |
| • | Brakes do not grab - brake pedal does not vibrate. |
| • | Vehicle stops without excessive pedal effort. |
| • | Vehicle stops without pulling to one side. |
| • | Front and rear brakes apply evenly. |
| • | Vehicle stops without noise coming from the brakes. |
| • | Vehicle stops without noise coming from the hydraulic booster. |
| • | Brakes do not drag after releasing the brake pedal. |
| • | Brakes do not make noise while driving. |
|
| • | Brake System Slow Response. |
| • | Brake Pedal Excessive Effort. |
| • | Braking Uneven - Side to Side. |
| • | Braking Uneven - Front to Rear. |
| • | Brake System Noise with Brakes Applied. |
| • | Brake System Groan at End of Stop. |
| • | Hydraulic Brake Booster Noisy. |
| • | Brakes System Noise with Brakes Not Applied. |
|
8
| While
driving the vehicle, turn the steering wheel without pressing the brake pedal.
| Brakes do
not apply while turning the steering wheel.
| Brakes Self-Apply When Turning Steering Wheel.
|
* Refer to the appropriate symptom diagnostic table for the applicable
abnormal result.
|
