Does Trailer Coupler Need to be Attached to Trailer Hitch to Properly Test Rear Signal Lights
Updated 03/28/2017 | Published 03/25/2017
Question:
Hello, I was wondering if the trailer has to be attached at the hitch to the vehicle to properly test the lights after installation. Does it affect the proper ground? The ground is already attached to the trailer itself, I just didnt know if it had to be hooked up to the vehicle to test, thanks.
asked by: Graham H
Helpful Expert Reply:
The trailer does not need to be physically attached to your vehicle's trailer hitch to properly test its rear signal lights. As long as all the wiring is correct and connected between the tow vehicle and trailer, everything will test just fine without actually attaching the trailer coupler.
In fact, it is better to test the trailer lights with the trailer uncoupled, so you do not experience a false ground.
Product Page this Question was Asked From
7-Pole and 4-Pole Trailer Connector Sockets w/ Mounting Bracket and Wiring - Vehicle End
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- No Converter
- No Tow Package
- 4 Flat
- 7 Blade
- Plug Only
- Hopkins
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