Instructions for Installation of a Trailer Wiring Harness on a 2003 Honda Civic 4 door DX

Expert Reply:

The wiring harness you have selected will work with your vehicle. I would recommend the 119176KIT for your vehicle so that you have all of the wiring, hardware and inline fuse needed to complete the installation.

You will have to use a circuit tester to identify your vehicles wiring. The 119176KIT includes a circuit tester, if you don't order the kit and need a circuit tester we have one, item # 3808 .

The wiring for your Honda Civic should be as follows, Green w/yellow stripe is Right turn lights, Green w/blue stripe is left turn lights, red w/black stripe is taillights, black is the ground and green w/white stripe is the brake lights. You will make these connections behind the taillights. Once you have these connections made you need to run the remaining red wire to the vehicle battery with at least a 12 gauge wire and a 10 amp fuse (included with wiring kit).

Then you mount the Modulite converter in a convenient spot behind the left side taillight and run the 4 pole connector to a spot near the hitch.

You may want a mounting bracket to keep the connector safe and out of the way. Our 18144 and 18140 mounting brackets work well together for a no drill installation. I have posted links to the items mentioned above, instructions and an installation video to help guide you through the process.

expert reply by: Bob G