Question about 2005 Ford F-150

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2005 f150 power locks and auto on headlamps stopped working and when door seal is broken radio stays on. battery was run dead. where do I start to isolate problem

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Sounds like a splice problem in the driver's side door sill. This is some what common with the list of symptoms you have.

These are the 2 locations that people have found the problem with the splice

Std cab ( Blue w/ White stripe wire )
2005 f150 power locks and auto on headlamps - c7692a8.jpg

SuperCrew ( purple wire - This is driver's side C-pillar )
bf801ae.jpg

Have heard of the splice locations can vary ( closer or farther from the C-pillar ) but I have not seen this myself. There are quite a few wires in the loom to check through, but this is a good starting point.

The other place could be the ground wire to the VSM ( Vehicle Security Module - if installed ). This is behind the rear seat.

Posted on May 31, 2010

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