Locating 12V Trailer Fuse on 2013 GMC Sierra

Question

Question:

cant seem to find fuse for tow package

asked by: Ron

0

Expert Reply:

I took a look at the online version of the owner's manual for your 2013 GMC Sierra but I wasn't able to locate a fuse location for the 12V trailer pin on the 7-Way connector. I recommend checking your copy of the manual or the lid of the fuse box under the hood to see if one is listed.

Otherwise you can always just manually run 10 gauge wire # 10-1-1 (sold by the foot) from the battery positive terminal via a 40-amp breaker like # PK54540 to the 7-Way connector. The 12V pin is typically located at the 11 o'clock position inside the connector (1 o'clock on the outside).

expert reply by: Chris R

0

Answer 1

Trailer fuses are found in the underhood fuse block. Fuse 1 is your trailer Right stop/turn lamp. Fuse 3 is your Left stop/turn lamp. Fuse 10 is your trailer backup lamps. Fuse 25 is your trailer park lamps. If you don't want to pull the…

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Answer 2

On GM vehicles of that vintage, the 12-V pin should be hot regardless of whether the ignition is on or not. If it isn't showing voltage even with the ignition on, you're almost certainly on the right track thinking it's a…

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Answer 3

It could be a tow package fuse on the vehicle. Use the owners manual to find the locations of fuses/relays related to the tow package wiring to check them and replace as needed. If the issue is not a fuse or relay then you can test the vehicle side…

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Answer 4

The correct replacement for a Demco Master Cylinder 05680-C is the Replacement Master Cylinder part #5650. I spoke with Demco to confirm this for you.

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Answer 5

I recommend reviewing the installation steps. I have attached a help article on installing a brake controller in a 2007-2013 GMC Sierra for you. This article goes through the installation steps. If the controller is not getting power, I recommend…

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Answer 6

Most likely you have an issue with the stoplight circuit of your 2013 GMC Sierra not able to tell the brake controller that the brakes are being applied. For your generation of truck this is commonly due to the third brake light or CHMSL fuse being…

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Answer 7

To wire your electric brakes you will want to run 10 gauge wire #10-1-1 to one of the brakes and run it to the other brake, using butt connectors like #05732-2 to connect them. The grounds will not be spliced, each brake assembly should have its own…

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Answer 8

The longest 4-way harness we offer that has all 16 gauge wire is the Wesbar Harness part #W787274 which is 14 feet long. For one that is 30 feet long that has a 16 gauge ground wire and 18 gauge signal wires you would want the part #W002230.

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Answer 9

If your trailer has 7 wires running all the way back to the brakes, then yes, you can tap into the existing wiring. Each of your new brakes will have two wires for the brake magnet. One wire is for 12 volt power to the brake magnets and the other…

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Answer 10

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 11

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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Answer 12

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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