Rear Shock Absorber: Inspection

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT REAR SHOCK ABSORBER ASSEMBLY
1. Check that shock absorber oil is not seeping or leaking from the sliding parts of the shock absorber rod.
2. Extend and compress the rear shock absorber.
  Standard:
  
  The rear shock absorber can be extended and compressed at a constant speed with an even load throughout the entire stroke without any abnormal resistance or noise.
  
  If there is any abnormality, replace the rear shock absorber with a new one.
  
  Fig 1: Extending And Compressing Rear Shock Absorber
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002