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 Reservoir 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 Functional 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 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
| Depress
the brake pedal.
| Brake pedal returns to normal height
| Brake Pedal Slow Return
|
7
|
- Press the brake pedal.
- Shift vehicle into DRIVE.
- Refer to
Diagnostic Starting Point
.
|
| • | 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.
|
