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Trailer Wiring Harness Installation - 1994 C/K Series Pickup

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How to Install a Trailer Wiring Harness on a 1994 Chevrolet C/K Series Pickup


Today on our 1994 Chevy Silverado, we'll be installing the Tow Ready T1 Vehicle Wiring Harness with 4-Pole Flat Connector. Part number 118315. Now to begin our install, we'll first go ahead and locate the manufacturer's 4-pole connection on the driver's side of the frame rail. This will be on the inside of the frame. It comes off the manufacturer's harness. Once we locate the connector, we'll go ahead and split the two ends. To do that, we'll pull back on the locking tab and then separate the two connectors.

Next, we can take our new T1 wiring harness that will plug directly into the manufacturer's wiring, plug in the two ends into the manufacturer's connection points. Then we'll take the white wire with a pre-attached ring terminal and secure it directly to the frame, creating the ground for our new 4-pole harness. To do that, we'll use the self-tabbing screw provided with the install kit and run it directly through the bottom of the frame. Now, with our ring terminal secured we can go ahead and take the 4-pole flat connector, run it over the hitch and towards the center of the vehicle and secure it to the chain hold down. Then we'll go ahead and use some zip ties to secure our excess wiring. Now, with the 4-pole connector installed and secured, we'll go ahead and cut off the excess from the zip ties to clean up our install look and we're ready to test our new 4-pole connector. To test it, we'll take our test light, put it on the white wire terminal, which will be the inaudible 00:01:44 terminal for our ground. Our next terminal will be our brown wire for our running light circuit.

Then the yellow wire terminal will be the left turn signal, left brake and the green wire will be the right turn signal, right braking. Now we know our 4-pole connector works. We're ready to hit the road. That is for the install of the Tow Ready T1 Vehicle Wiring Harness with 4-Pole Flat Connector. Part number 118315 on our 1994 Chevy Silverado. .


Ronald S.

11/11/2020

I appreciate how simple the instructions. Very helpful

Info for this part was:

Employee Joe V
Test Fit:
Joe V
Employee Nicholas E
Test Fit:
Nicholas E
Employee Andrew K
Video by:
Andrew K
Employee Cole B
Installed by:
Cole B
Employee Chris R
Video Edited:
Chris R

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