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High Voltage Issues

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1 reply to this topic

#1 OFFLINE   mps1987


    New Member

  • C-MAX Hybrid Member
  • 1 posts
  • Region:U.S. Northeast
  • LocationUpstate NY
  • My C-MAX's Year:2014
  • Current Vehicle:Energi

Posted 11 March 2018 - 12:11 AM

To wit, in mid January my car - after preconditioning - showed the yellow wrench icon only for that drive, but wouldn't do it again. This happened twice and went away for a while. I didn't bother taking it to the dealer because I didn't think anything of it, and the manual says to only take the car to the dealer if its a persistent problem. A month later, while driving the car, the wrench icon and the red triangle showed up, and I couldn't drive the car at all. I had to get it towed to the dealer. After several days of diagnostics - because all the dealer could find was a problem with the high voltage system (which is a big part of the vehicle) - the dealer determined that the high voltage cooling system needed to be replaced. The only code I found on the dealer's paperwork is POAA6. Thankfully, all but the deductible was covered under the warranty.

Edited by mps1987, 28 March 2018 - 08:16 PM.

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#2 OFFLINE   obob


    C-Max Hybrid Member

  • C-MAX Hybrid Member
  • 712 posts
  • Region:Decline
  • LocationUS
  • My C-MAX's Year:2013
  • Current Vehicle:C-MAX SE

Posted 11 March 2018 - 12:39 AM

Here are some ideas - don't know the answer myself


there is also an energi forum: fordcmaxenergiforum.com









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