Power Mirror Control System: Inspection

Fig 1: Identifying Mirror Switch Terminals

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Left side:

Fig 2: Displaying Mirror Switch Specifications (Left Side)
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Right side:

Fig 3: Displaying Mirror Switch Specifications (Right Side)
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If continuity is not as specified, replace the switch.
Inspect mirror motor operation.
1. Connect the positive (+) lead from the battery to terminal 3 and negative (-) lead to terminal 1. Check that the mirror turns to left side.
  
  Fig 4: Checking That Mirrors Turn To Left Side
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2. Reverse the polarity and check that the mirror turns to right side.
  
  Fig 5: Checking That Mirrors Turn To Right Side
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3. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1. Check that the mirror turns upward
  
  Fig 6: Checking That Mirrors Turn Upward
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4. Reverse the polarity, check that the mirror turns downward.
  
  Fig 7: Checking That Mirrors Turn Downward
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If operation is not as specified, replace the mirror assembly.