Question about 2005 Ford F-150
The single item that is common to all the symptoms is the BSM ( Body Security Module ) behind the rear seat back or cab panel ( depending if it is a std cab or supercab / supercrew ).
There are 4 fuses for the BSM, these are fuses # 6, 18, 40, 107 and 102.
Start by checking these fuses with a meter on both sides of the back with the little pin, using a known good ground ( there is one to the lower right hand corner of the fuse panel ).
The next thing I would check is the ground to the BSM itself, this is behind the rear seat back ( if a supercab / supercrew ) cab configuration.
removing the seat back looks hard, but it is really a 25 min job the first time.
This is the location for releasing the clips. Took me a few trys to get the latch released the 1st time, but the next one went easy. Once the clip is released, stick a 2x4 covered in a sock2005 Ford F150 4x4 5.4 Problem with the Ford F-150 - sscullys_162.jpgback, so it does not relatch itself when you are doing the other side.
This is the angle that you are shooting for, you can see there is a target that you are feeling for.
Once you have the seat back out, getting the carpet off the back wall is easy. The BSM is the hump in the back wall covering, follow the ground wire to the lug, and make sure it is connected good, and it not broken at the connector on the BSM ( give it a slight tug ).
Hope it is one of the fuses, and you do not have to go digging in the back.
The symptoms by themselves have different solutions, I took the common item, so it could be a case of you really do have multiple problems. The autolamp one would be a burn pin at the connector if they are different issues, if the fuses and ground check good, while you have the seat back off, pull the connector and look at it, to see if the pins are burnt.
Posted on Apr 11, 2011
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Posted on Jan 02, 2017
SOURCE: 2005 Ford F150 4x4 5.4
I think you have a bad lighting conrol module. Call a dealer parts department and ask if there is one in your truck and how much is it.
tascafordparts.com sells at discount.
Posted on Apr 03, 2011
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