GM Service Manual Online
For 1990-2009 cars only

Test Description

The numbers below refer to the step numbers on the diagnostic table:

  1. Suspension components that are not operating correctly may cause a disturbance to the vehicle during application of the brake system.

  2. Steering components that are not operating correctly may cause a disturbance to the vehicle during application of the brake system.

Step

Action

Yes

No

1

Were you sent here from the Hydraulic Brake Symptom table?

Go to Step 2

Go to Diagnostic Starting Point - Hydraulic Brakes

2

Inspect the suspension system for correct operation. Refer to Diagnostic Starting Point - Suspension General Diagnosis.

Did you find and correct a condition?

Go to Step 6

Go to Step 3

3

Inspect the steering system for correct operation. Refer to Diagnostic Starting Point - Power Steering System.

Did you find and correct a condition?

Go to Step 6

Go to Step 4

4

Inspect the hydraulic brake system for correct operation. Refer to Hydraulic Brake System Diagnosis.

Did you find and correct a condition?

Go to Step 6

Go to Step 5

5

Inspect the disc brake system for correct operation. Refer to Disc Brake System Diagnosis.

Did you find and correct a condition?

Go to Step 6

Go to Diagnostic Starting Point - Hydraulic Brakess

6

Road test the vehicle in order to confirm correct operation. Refer to Brake System Vehicle Road Test.

Is the condition still present?

Go to Step 2

System OK