GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Turn on the ignition.
  2. Allow the engine to idle.
  3. Place the gear selector in PARK.
  4. Turn the steering wheel several times in both directions.

The steering wheel turns with minimal effort.

Go to Variable Effort Steering Electrical Diagnosis

2

  1. Drive the vehicle.
  2. Turn the steering wheel several times in both directions.
    • As the vehicle speed increases, the level of effort needed to turn the steering wheel increases.
    • As the vehicle speed decreases, the level of effort needed to turn the steering wheel decreases.

Go to Variable Effort Steering Electrical Diagnosis

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.