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Guest Message by DevFuse

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headlight running light troubleshoot.


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3 replies to this topic

#1 OFFLINE   htcrwn148

htcrwn148

    New Member

  • Fusion Hybrid Member
  • 4 posts
  • Region:Decline
  • Location:houston
  • Current Vehicle:Fusion Hybrid
  • My Hybrid's Year:2011

Posted 29 March 2017 - 06:50 PM

Im trying to pinpoint why my headlights arent working. can some one decipher this diagram for me. Mainly the parts circled what does "fet" and "Logic". I dont want to mess with the smart junction box but merely want to find where the fuses relays or plugs are to find the cause by process of elemination. (my headlights and running lights do not work.only fog lights and hi beams) i have checked fuses 7-8 and all fuses in baterry junction box and have replaced the headlight switch. so now im determined to fix it. thanks for any help.

Attached File  2011hybridheadlampDiagram.png   202.4KB   1 downloads

Attached File  2011hybridheadlampDiagram2.png   226.2KB   0 downloads

 

(this is for a 2011 ford fusion Hybrid









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#2 OFFLINE   murphy

murphy

    Fusion Hybrid Addict

  • Fusion Hybrid Member
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  • Region:U.S. Northeast
  • Location:PA
  • Current Vehicle:2013 Fusion Energi Titanium

Posted 29 March 2017 - 07:34 PM

Im trying to pinpoint why my headlights arent working. can some one decipher this diagram for me. Mainly the parts circled what does "fet" and "Logic". I dont want to mess with the smart junction box but merely want to find where the fuses relays or plugs are to find the cause by process of elemination. (my headlights and running lights do not work.only fog lights and hi beams) i have checked fuses 7-8 and all fuses in baterry junction box and have replaced the headlight switch. so now im determined to fix it. thanks for any help.

attachicon.gif2011hybridheadlampDiagram.png

attachicon.gif2011hybridheadlampDiagram2.png

 

(this is for a 2011 ford fusion Hybrid

FET is a field effect transistor.

Logic is a collection of parts (transistors, integrated circuits, resistors, capacitors, etc) that perform a specific function.  It is probably a sealed black box acquired from a supplier.



#3 OFFLINE   htcrwn148

htcrwn148

    New Member

  • Fusion Hybrid Member
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  • Region:Decline
  • Location:houston
  • Current Vehicle:Fusion Hybrid
  • My Hybrid's Year:2011

Posted 30 March 2017 - 10:11 AM

FET is a field effect transistor.

Logic is a collection of parts (transistors, integrated circuits, resistors, capacitors, etc) that perform a specific function.  It is probably a sealed black box acquired from a supplier.

hmmm ok well i'll have to look for other causes. if all efforts fail i guess to the dealer it is.



#4 OFFLINE   billford

billford

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  • Location:Seattle
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  • My Hybrid's Year:2014

Posted 01 April 2017 - 04:43 PM

Have you checked for power to the headlights? Both could be burnt out...






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