On-Vehicle Inspection

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

INSPECT COMPRESSOR AND PULLEY
1. Check the operation.
  
  Fig 1: Inspecting Compressor And Pulley
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Start the engine.
  2. Inspect the weight hub.
    Standard: The weight hub rotates along with the pulley.
2. Measure the resistance between terminals 1 and 2.
  Standard resistance: 10.1 to 11.1 Ω at 25°C (77°F)
  
  If the resistance is not as specified, replace the compressor and pulley.
  
  Fig 2: Inspecting Weight Hub
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002