Test LED on Curt C57674 4 to 7 way 12v Adapter Stays On with Vehicle Shut Off
Published 03/06/2020 >
Products Featured in This Question
Question:
The 12v test lamp indicator is always lit. Is this standard? Even when the vehicle is off
asked by: James
Expert Reply:
There is a slight draw even when the vehicle is shut off, this is normal as the wire that feeds that circuit is connected directly to the battery. The LED draws a minuscule amount of voltage, so unless the vehicle will sit for several months on end, there's no danger of draining the battery. If the fact that the LED remains lit is a concern to you, you could install a battery isolation solenoid like # PK5231201. When installed, the solenoid would disconnect that power feed when the ignition is shut off. I've linked you to a product description video featuring the solenoid.
Product Page this Question was Asked From
Adapter 4 Pole to 7 Pole and 4 Pole w/Test Lamps
- Custom Fit Vehicle Wiring
- Wiring Adapters
- Universal Fit
- 4 Flat to 4 Flat
- 4 Flat to 7 Blade
- Plug and Lead
- CURT
more information >
Featured Help Information
Instructions
Continue Researching
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Holiday 2025 | RVers’ Favorite Gear & Road Picks
- Q&A: What All Is Needed To Install The Redarc Tow-Pro Elite On A 2021 Subaru Ascent
- Q&A: Will AM3S550 Tire Work As A Spare For The 2025 Keystone Coleman 13B?
- Q&A: What Bracket Goes With The TowSmart ProClass Trailer Connector TS59RR?
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Is etrailer Trailer Hitch Compatible With 2025 Mercedes-Benz eSprinter 2500
- Q&A: No Trailer Connection on Tekonsha P3 Brake Controller 90195 on a 2000 Toyota Tundra
- Article: Trailer Wiring Diagrams
- Q&A: How to Add Flat Tow Capable Wiring to a School Bus
- Q&A: Recommended Flat Towing Parts for a 2022 Jeep Wrangler 4xe w/a Factory Winch Bumper
- Article: How to Choose the Right Trailer Hitch Class
- Article: Brake Controller Installation: Starting from Scratch
- Article: Flat Towing Package for 2014-2018 Jeep Grand Cherokee



