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1999 Volkswagen Jetta

Question: What is this?

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ddidier420, 4 Cylinder, Morristown, TN, May 12, 2009, 18:41

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I have an old body style 1999. What is the electrical box under the coolant expansion tank?

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• Answer #1

  spyder May 14, 2009, 16:07
  

   Journeyman

  It is the Fan Control Module. I believe it is designated J93 in the wiring diagram.
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