Body Security Module
Thread Starter
|
New User
Joined: Mar 2017
Posts: 4
Likes: 0
Body Security Module
2005 F250
I have been searching for the short in my truck for months. If it sits for a couple days, the batteries sometimes go dead.
Generally, there is a power draw from the Body Security Module (BSM) for about 1-1/2 minutes. FINALLY figured out that sometmes the power draw is continuous, e.g., the pwer draw does not shut off after 1-1/2 minutes.
My guess is that there is a relay somewhere and that the relay is failing.
WHERE IS THE BSM RELAY located?
Thanx
I have been searching for the short in my truck for months. If it sits for a couple days, the batteries sometimes go dead.
Generally, there is a power draw from the Body Security Module (BSM) for about 1-1/2 minutes. FINALLY figured out that sometmes the power draw is continuous, e.g., the pwer draw does not shut off after 1-1/2 minutes.
My guess is that there is a relay somewhere and that the relay is failing.
WHERE IS THE BSM RELAY located?
Thanx
Fleet Owner
Joined: Apr 2008
Posts: 24,322
Likes: 5,132
From: 0,0,1
There isn't one, the BSM is fed directly from it's fuses and not through a relay. FYI, the BSM is located under the dash on the passenger's side.
Fleet Mechanic
Joined: Jan 2016
Posts: 1,804
Likes: 113
Not sure about '05 but on a '08 there is a smart module behind the passenger kick panel. It quite a few harnesses plugged into it. I know it controls the interior lights, door light switches, and shifter interlock. I had one go bad on a '08 and the interior lights stayed on, the door ajar warning displayed for all four doors, and I could not get it out of park with the ignition switch on. Replaced module and all went back to normal. Don't know if this helps you are not but check it anyway.
Thread Starter
|
New User
Joined: Mar 2017
Posts: 4
Likes: 0
Yeah, I need to figure out where it is as I am sure it is what is causing my dead battery.
Maybe I can find a video of exactly where the module is located.
While I can live without all security stuff for some reason removing the BSM fuse takes out my 4 wheel drive (WTF). I do not see anything wrong with the BSM fuse in except that it usually continuously draws power and does not shut off when it supposed to.
If anyone have a picture or video where it is located, that would be a big help.
Thanx
Maybe I can find a video of exactly where the module is located.
While I can live without all security stuff for some reason removing the BSM fuse takes out my 4 wheel drive (WTF). I do not see anything wrong with the BSM fuse in except that it usually continuously draws power and does not shut off when it supposed to.
If anyone have a picture or video where it is located, that would be a big help.
Thanx
Fleet Mechanic
Joined: Jan 2016
Posts: 1,804
Likes: 113
If it's the same as my '08 you can't miss it. Remove the passenger front kick panel and you will see it. It is the box that has fuses and a ton of wiring connectors plugged into it. It takes two screws to remove. I believe they are 7mm. Once those two screws are removed it will slide out of it's slot in the body. You will have fun twisting and squirming to get those connectors off.
Thread Starter
|
New User
Joined: Mar 2017
Posts: 4
Likes: 0
Lots of different locations I guess as some say behind radio, some say under dash, and you say on passenger side. Gonna have to see where it may be in a few days - after cutting and baling hay.
Why in the world would the 4x4 be tied into the BSM fuse.
Why in the world would the 4x4 be tied into the BSM fuse.
Cargo Master
Joined: Nov 2007
Posts: 2,238
Likes: 475
Everything is tied to everything in newer vehicles. Disabling 4wd could just be one part of the security system default when it loses power.
Trending Topics
Fleet Mechanic
Joined: Jan 2016
Posts: 1,804
Likes: 113
It is what it is. In my case the smart module wouldn't allow the truck to come out of park. I never checked the 4X4 so I can't say about that.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
Napewastewin
1999 - 2003 7.3L Power Stroke Diesel
5
Jan 28, 2023 11:44 AM