Test Drive
- Ensure VAPS system is connected. Drive vehicle at speeds up to 55 MPH. Set cruise control. Note steering effort changes. Steering effort should be balanced between right and left. Note speedometer operation.
- If steering effort changes evenly, system is okay. Diagnosis is complete. If steering effort is unbalanced between right and left, replace steering gear and repeat QUICK TEST A4. If no change in steering effort, proceed to QUICK TEST A5 . If power assist occurs only at high speed, proceed to QUICK TEST A11 .