Inner Rear View Mirror: Inspection

WARNING: This page is about a different car, the 2007 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT INNER REAR VIEW MIRROR ASSEMBLY
1. Inspect operation of the electrochromic inner mirror.
  1. Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 1.
  2. Attach black colored tape to the forward sensor to prevent it from sensing.
  3. Light up the mirror with an electric light, and check that the mirror surface changes from bright to dark.
    Standard:
    
    Mirror surface changes from bright to dark.
    
    If the result is not as specified, replace the mirror assembly.
    
    Fig 1: Inspecting Inner Rear View Mirror Assembly
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002