Webi've been having some issues with my battery draining if i let my tahoe sit for a week or so.

Webthe power from that fuse goes to nothing else, only the bcm.

Is it a input causing the issue or is it a output?

You need a voltmeter with mv reading and sharp probes.

A 0. 3amp draw.

I realized it was happening when my alarm kept going off and nothing.

The battery goes dead over night.

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Web2004 chevrolet silverado 1500 fuse box diagram.

See page d28 and then look for 'tbc' anywhere you can find it in the.

I did a battery drain test with my multimeter and foundler.

Webi was wondering what could be the culprit in blowing tbc batt fuses?

I had to stick a 30a fuse in just to get home the other day.

Left bussed electrical center,.

Webthis fuse is for the body control module, so your draw is probably something controled by the bcm.

Webi have a 00 tahoe that i’m getting a draw on the tbc fuse in the under hood fuse box.

Plug the autocal into the truck’s obdii using supplied cable.

Webthe tbc batt fuse should be in the under hood fuse block.

This fuse is for the body control module, so your draw is probably something controled by the bcm.

Webyou need to find out what output the tbc fuse powers.

Get a manusl, get a list, and eliminate them one by one.

Posted on feb 11, 2012.

Reading out the stock program.

Chevrolet silverado 2500 fuse box diagrams change across years, pick the right year of your vehicle:

This is called the truck body.

Pulling one of the inside fuse panel fuses, like tbc1, or tbc2 should help narrow it down.

Turn the key to the on position (do not start the truck).

Webthe 2003 chevrolet silverado 2500 has 3 different fuse boxes:

Webgmc sierra fuse box diagrams change across years, pick the right year of your vehicle:

Probing each side of a fuse will help identify where.

Webthe tbc fuse kills the draw but we have no idea what that powers in the bcm.

It’s enough to kill battery in about 2 days.

It blew the 10a, 15a, and a 20a fuse.

I first started under.

Webthe three fuses i identified were atc (transfer case) and tbc (truck body computer) in the engine compartment fuse block and rdo batt (radio, battery) in the.

Auxiliary power [single battery and diesels only]/ dual battery (tp2) do not install fuse.

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I have attached a diagram below and circled the fuse location.

Please let me know if i can be of any further.

Webi'm the new owner of a 03 lt.

Since you have aftermarket items on the vehicle it would be a good starting point to disconnect them and see if the.

Webdisrupting power to those will only cause confusion.

The draw is around. 83.

For chevrolet silverado (gmt800) first generation 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007.

In this article you will find a description of fuses and relays gmc, with photos of block diagrams and their locations.

Webi'm guessing your problem is tied somehow to the left fuse block at the end of the dash.

There is no schematics for internal.