Steering Axis Inclination
This is a check for bent or damaged parts and not a service adjustment. Car must be level (crosswise and lengthwise) and camber should be within limits. If camber cannot be brought within limits and steering axis inclination is correct, steering knuckle is bent. If camber and steering axis inclination are incorrect by approximately the same amount, upper or lower control arms are bent. Replace parts and recheck all front end adjustments.
CAUTION:
Do not attempt to correct by straightening parts.