Body control module location 2008 Chevy express 2500

SOURCE: Body Control Module - 2000 Chevy Blazer

Not sure about a body control module, there is a pcm under the hood on the pass. side that controls most everything on these, however i would check your fuses for the seat, on the 00 models the headlights do stay on all the time while driving due to daytime running lights but if they stay on after you take the key out then id check the headlight switch or sensor on the pass side dash.

SOURCE: 1989 Jeep Cherokee - Electrical Problem - horn, brake lights, blinkers, radio/cd...

I think I have found the problem. When I wiggle the ignition switch the turn signals and radio go on and off so I feel the issue is in the ignition switch. From what I understand the actual electronics for the switch are at the base of the sterring column behind the lower dash panel and is connected by a rod that may need adjusting.

SOURCE: 98 lincoln town car flashers,turn signals,brake lights don't work

check the outputs on the multi function switch (t/s switch) the brake lights and flashers all go threw this switch try to wiggle the flasher button if the lights start to work then the switch is bad to replace switch remove bottom cover by pedals if it has one bottom cover on steering colum has i beleave 4 screws that hold it on, the tilt colum lever unthreads and the cover will come off the upper colum just clips on you will have to remove the key tumbler to get it off . you need to disconnect the battery at this point and block the wheels. to get tumbler out put key in and turn to run postion there is a small silver button that pushes in with small screwdriver once its pushed in use the key to pull tumbler out the top cover will now come off you will probably have to tilt colum down and shift to 1 to get cover off there are 2 torx head screws that hold switch on plug new switch in and reconnect battery to test lights unhook battery again and reassemble please let me know how you make out

SOURCE: 2000 Buick LeSabre where power locks, seats, windows quit working

If all power devices stopped at the same time you may have a bad fuse link. Since it is rare for all the fuses blowing at once and you already checked them. Start at your fuse links before assuming something expensive.

SOURCE: I have A 2000 Chevy 3500 Express Van and the brake

Hi,

When you said that you checked the brake switch, did you check it live? Meaning verified live power to the switch, press switch, and then power came out the other terminal?

If so, also verify zero power on brake press, at the offending brake light bulb terminal. You must verify the test light each time you move it...leave running lights on...

After verifying that there is no power coming, after the brake is pressed, note the wire color and find it where it comes to the steering column and test there... This would eliminate wires and connections between front and the rear of the vehicle, unlikely, but needs to be tested.

After verifying no power at that terminal, then yes the t/s switch is certainly suspece. This may be the time to get a mechanic to verify and replace the switch, there are locks, tilt mechanisms, air bags, column bearings, etc involved. Failures risk loss of vehicle control (locking or binding for example.)..

Hope this gets you going in the right direction.

Testimonial: "Thank You. I tried those things and it seemed to be the Emergency Flasher switch in the multi function switch."