What is the Best Wiring Harness for a 2018 Toyota Corolla iM?  

Question:

Expert Reply:

The best plug and play wiring harness for a 2018 Toyota Corolla iM is the Curt item # C56309. Curt makes some of the best and most reliable wiring harnesses in the towing business. Multiple manufactures use them as suppliers of their OEM towing harnesses.

The Curt item # C56309 has a custom-fit T-connector that plugs into your Corolla's wiring harness, which is located behind the tail lights. It will provide you with a 4-flat connector that will power your trailer or accessories lighting functions.

Listed below are some other parts you will need to tow a trailer with your 2018 Toyota Corolla iM:

Trailer Hitch - Draw-Tite item # 24952

Ball Mount - Draw-Tite Drawbar item # 3593

Hitch Balls - 2' item # 19258 or 1-7/8" item # 19256

expert reply by: Jerred H

0

Dave

1/15/2025

I keep losing ground all the time what is the deal? Ive used better screws, different locations and they work fine then a month or so goes by no ground what can i do differently?

Reply

Jerred H.

1/15/2025

@Dave Are you cleaning off the paint and getting your grounding location down to bare metal? If not that's most likely your problem.

Reply