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Tbc 2b Draws battery down

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Metaldrgn
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SOURCE: Short running battery down

Do an ohm check to ground at the fuse with the positive cable disconnected. If you read close to 0 then yes you have a short. If it's above ~10 ohms (it actually may be quite a bit higher) it's going through a load. See if you can follow the wiring and shake it if you have a short to see if you get a jump in resistance. If you know where it goes, find the other end before it goes through the load and shake it on that end. Looks like other people have been having this issue if you are referring to a battery drain issue:


http://www.gmtruckclub.com/forum/showthread.php/96295-Electrical-problem-battery-drain-How-much-is-too-much

Posted on Mar 30, 2014

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1 Answer

My Reverse Lights Aren't Working On My 2005 Chevrolet Alvarado 1500 4.3 L V6 2 Wheel Drive What Fuse Do I Need To check


"Back-Up Lights" this fuse is located under the hood.
also you can check the:
TBC-2B (15A)" fuse in the interior fuse panel near the driver's left knee.

Jan 30, 2015 | Chevrolet Cars & Trucks

1 Answer

Short running battery down


Do an ohm check to ground at the fuse with the positive cable disconnected. If you read close to 0 then yes you have a short. If it's above ~10 ohms (it actually may be quite a bit higher) it's going through a load. See if you can follow the wiring and shake it if you have a short to see if you get a jump in resistance. If you know where it goes, find the other end before it goes through the load and shake it on that end. Looks like other people have been having this issue if you are referring to a battery drain issue:


http://www.gmtruckclub.com/forum/showthread.php/96295-Electrical-problem-battery-drain-How-much-is-too-much

Mar 30, 2014 | 2003 Chevrolet Suburban

1 Answer

The dome lite on my 2006 gmc seirra will not come on cant find the fuse


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.

Aug 11, 2012 | GMC Cars & Trucks

2 Answers

TBC Batt fuse is draining battery after car set 24 hrs what is this fuse for


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!

Feb 11, 2012 | 2003 Chevrolet Silverado 1500

1 Answer

Truck displaying "TBC FAULT" while driving. What


It may possibly store DTCs. If not.. PINPOINT TEST H: THE INSTRUMENT CLUSTER DISPLAYS "TBC FAULT"

Test Step Result / Action to Take
H1 CHECK FOR THE PRESENCE OF A TRAILER BRAKE CONTROL (TBC) MODULE AND BRAKE PRESSURE TRANSDUCER
Verify that the vehicle is equipped with a TBC module in the instrument panel and a brake pressure transducer on the master cylinder.
Is the vehicle equipped with a TBC module and a brake pressure transducer?
Yes
GO to H2.

No
If the vehicle has a brake pressure transducer but not a TBC module, INSTALL a TBC module. CLEAR the DTCs. REPEAT the self-test.

- If the vehicle has a TBC module but does not have a brake pressure transducer, GO to H4 .

- If the vehicle has neither a TBC module nor a brake pressure transducer, GO to H3 .

H2 CHECK TBC MODULE COMMUNICATIONS
Using the scan tool, access the TBC module. Does the scan tool communicate with the TBC module?
Yes
VERIFY that the instrument cluster is configured correctly, RECONFIGURE as necessary. REFER to Programmable Parameters in this section.

No
Go To Pinpoint Test a.

H3 CHECK THE VEHICLE BUILD INFORMATION
Verify that the vehicle is supposed to be equipped with a TBC module.

Is the vehicle supposed to be equipped with a TBC module?
Yes
INSTALL a trailer brake retrofit kit. CLEAR the DTCs. REPEAT the self-test.

No
VERIFY that the instrument cluster is configured correctly, RECONFIGURE as necessary. REFER to Programmable Parameters in this section.

H4 CHECK THE VEHICLE BUILD INFORMATION
Verify that the vehicle is supposed to be equipped with a TBC module.
Is the vehicle supposed to be equipped with a TBC module?
Yes
INSTALL a brake pressure transducer. Make sure to LUBRICATE the O-ring seal with clean, specified brake fluid before installation. RECONFIGURE the instrument cluster for trailer brakes, REFER to Programmable Parameters in this section. CLEAR the DTCs. REPEAT the self-test.

No
REMOVE the TBC module and install the storage bin.

Hope this helps; keep us updated.

Jan 17, 2011 | 2007 Ford Super Duty King Ranch

1 Answer

All fuses good, manual operation good. Dome lights will not come on when doors are opened and my back up lights stoped working all at the same time


Fuse box on drivers side dash, lower right hand corner fuse marked "TBC-2B" (15A) controls dome and reverse lights

Oct 31, 2010 | 2006 Chevrolet Silverado

1 Answer

What's on TBC 2B fuse?


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.

Feb 06, 2009 | 2002 Chevrolet Silverado 2500HD

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