My 2004 Chev Silverado continually blows the fuse listed as TBC 2B.
Some of the cluster lights go out but I was wondering what all is on
this circuit to start checking for a short. TBC means Truck Body
Controller according to the manual. I'd just like to know if there's
more than just the dash lights on this fuse. Thanks
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The BCM - body control module controls those lights ! There are two fuse's in the rear fuse box that supply B+ voltage to the BCM for interior light's. TBC 3 an TBC 4. Fuse # 4 an #40 both are 10amp fuse's . Fuse Block - Rear
Beneath the left rear seat !
Well it looks like the lights are controlled and powered by the body computer and a door module for each front door. The fuses involved are marked TBC 2B and 2C and they are each 15amp. They are in the fuse box in or under the dash.
This fuse is for the body control module, so your draw is probably something controled by the bcm. Get a manusl, get a list, and eliminate them one by one until your draw is gone! Good luck, let me know if you need any more help!
incorrectly wired radio would cause problem.it would be the wire that is suppose to connect for dimming lights looks like a ground but is not has a yellow or a white stripe with black on it.use it as a ground and it will blow the fuse.