Ford F-150 The entry level full size truck from Ford, one of America's best selling for decades.

rear window defroster

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Old Nov 28, 2021 | 11:43 AM
  #1  
Stephen Thompson's Avatar
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Default rear window defroster

my 2003 ford f150 lariat rear window defroster is not working properly, any ideas on how to fix it?
 
Old Nov 28, 2021 | 12:05 PM
  #2  
hanky's Avatar
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The first thing you might do is to verify power is getting to the window grid.
If it is, then you need to find the break and that can be easily repaired with a piece of tinfoil if necessary.
If no power to it ,yes I forgot to state the key must be on and the rear defroster button should be calling for defrost, any way , if no power is coming to it , check for power available at the switch . If power is available coming in , power should be available going out of the switch when in the on position. If no power is available at all, then look for a possible open fuse. Owner's manual should show which fuse and where.
 
Old Dec 21, 2021 | 02:17 AM
  #3  
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okay so funny story...my truck doesnt have a rear defrost button...just a regular defrost button
 
Old Dec 25, 2021 | 01:33 PM
  #4  
Stephen Thompson's Avatar
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Originally Posted by hanky
The first thing you might do is to verify power is getting to the window grid.
If it is, then you need to find the break and that can be easily repaired with a piece of tinfoil if necessary.
If no power to it ,yes I forgot to state the key must be on and the rear defroster button should be calling for defrost, any way , if no power is coming to it , check for power available at the switch . If power is available coming in , power should be available going out of the switch when in the on position. If no power is available at all, then look for a possible open fuse. Owner's manual should show which fuse and where.
so funny story...my truck doesn't have a rear defrost button...just a button that says defrost
 
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