Air Conditioning Control Assembly: Inspection

WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT INDICATOR (w/Navigation System)
1. Connect the positive (+) lead from the battery to terminal A8 and negative (-) lead to terminal A16.
2. Check that the indicators come on while operating the switches.
  If operation is not as specified, replace the heater control.
INSPECT INTEGRATION CONTROL PANEL ASSEMBLY
1. Inspect integration control panel assembly (see DIAGNOSIS SYSTEM ).
  
  Fig 1: Connecting Positive (+) Lead From Battery To Terminal A8 & Negative (-) Lead To Terminal A16
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT ILLUMINATION LIGHT (w/o Navigation System)
1. Connect the positive (+) lead from the battery to terminal C10 and negative (-) lead to terminal C19 then check that the indicators' illuminate.
  If operation is not as specified, check the faulty bulb.
2. Remove the bulb.
  
  Fig 2: Connecting Positive (+) Lead From Battery To Terminal C10 & Negative (-) Lead To Terminal C19
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Using the tester as shown and test the continuity.
  If continuity exists, replace the heater control. If no continuity exists, replace the bulb.
  
  Fig 3: Testing Continuity
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT INDICATOR (w/o Navigation System)
1. Connect the positive (+) lead from the battery to terminal C22 and negative (-) lead to terminal C12.
2. Check that the indicators come on while operate the switches.
  If operation is not as specified, replace the heater control.
INSPECT HEATER CONTROL ASSEMBLY (w/o Navigation System)
1. Inspect heater control assembly (see DIAGNOSIS SYSTEM ).
  
  Fig 4: Connecting Positive (+) Lead From Battery To Terminal C22 & Negative (-) Lead To Terminal C12
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002