Wiring Diagram Needed for Installing a 7-Way on a 2005 Chevrolet Silverado

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Question:

wiring diagram for a vehicle end trailer connector7 Pin for a 2005 Chev Silverado 1500

asked by: Jim K

1

Helpful Expert Reply:

When hardwiring a 7-Way to your 2005 Chevrolet Silverado, like part # PK12-707E, you will want to connect the following functions to the following pin locations:

1 o'clock - 12V Power
3 o'clock - Right Turn/Stop
5 o'clock - Brake Controller Output
7 o'clock - Ground
9 o'clock - Left Turn/Stop
11 o'clock - Tail and Running Lights
Center - Reverse Lights

I have attached a diagram showing these functions as well. Please note that the colors in the diagram are typical wire colors for those functions but that does not mean those are the colors of the wires for your Silverado. If you are unsure what any functions are you can use a circuit tester like part # 3808 to help you with the installation.

expert reply by: Jon G

1

click to enlarge

Testing C.

11/1/2021

05 Silvado, multimeter leads: black to ground, red to 11:00 (running lights). I have no voltage at that pin only with light switch in the on position. Truck lights work. Cannot find a fuse for just trailer running/marker lights. Any help greatly appreciated

Reply

Les D.

11/2/2021

@TestingC Yes, the 11 o'clock position is the running lights which will only have power with the truck running lights on. When the trailer is hitched to the truck with the engine running and headlights on, do your trailer running lights work?

Reply

Testing C.

11/12/2021

@LesD Yeah I read the OM, particularly the part about fuse pnls, especially the underwood pnl. The one marked Trlr Pkng lts stood out like a sore thumb.

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Answer 1

It sounds like you have found the bundle under the rear of your 2005 Chevy Silverado that would be used for wiring up a 7-way. In the bundle of wires, look for the following colors: Yellow = left turn and brake light Dark Green = right turn and brake…

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Answer 2

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Answer 3

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Answer 4

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Answer 5

See the picture to the right for a wiring diagram of seven-way vehicle end trailer connector. If you click on it you can enlarge it. I have also included a trailer wiring FAQ page for you to check out.

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Answer 6

The barrel on the Replacement Front Turnbuckle for HappiJac Original Turnbuckle Set, part #LC182901, is 10 1/8" in length. I have included a product description, a video review link below.

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Answer 7

When wiring a 7-Way on your trailer with 5 wires, your green wire will be right turn/brake, the yellow wire will be left turn/brake, the brown wire will be the taillights, and the white wire will be the ground. You will want to find out if the blue…

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Answer 8

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Answer 9

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Answer 10

I checked with AEV and found that you can use the D-ring mounts on that bumper to flat tow the Jeep. If the D-ring mounts are 3/4 inches thick with 7/8 inch or 1 inch diameter holes you can use #RM-035 with a Roadmaster tow bar. If the D-ring mounts…

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Answer 11

Blue Ox is very thorough with their testing so if they told you that one of their tow bars like the #BX7420 would attach directly to the lugs of your AEV Premium Bumper it would be true this is possible and would work great.

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Answer 12

The charge line of the Brake Buddy Select 3 Portable Supplemental Braking System #HM39524 normally attaches to the 12 volt accessory circuit on the 7-way of the tow vehicle. This is normally the 1:00 pin. If this circuit isn't active on your…

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Wiring Diagram Needed for Installing a 7-Way on a 2005 Chevrolet Silverado

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