How to Avoid Battery Drain While Flat Towing a 2013 Honda CR-V

Updated 03/20/2017 | Published 03/18/2017

Products Featured in This Question

Roadmaster Battery Charge Line Kit for Motorhomes

(140)

$67.55

Roadmaster Battery Charge Line Kit for Towed Vehicles

(1199)

$45.63

Roadmaster FuseMaster Fuse Bypass Switch for Towed Vehicles - 20-Amp ATM Mini-Fuse

(357)

$91.24

Question:

Hello where is the fuse for the 12 volt connector on the outside 7 way vehicle connector. Or any other idea to fix the problem. I dont have any current at this pole when the RV motor is running so the towed vehicle becomes with a low battery . Thanks.

asked by: Guy P

Expert Reply:

If the 7-way on your motorhome is a factory 7-way then the fuse will be in the fuse box and the legend on the box or in your owner's manual should tell you which cavity the 12 volt power will be.

If it's an aftermarket 7-way it's possible the 7-way doesn't have a 12 volt circuit and you'll need to install a charge line on the motorhome using # RM-156-75. You'll also need the vehicle side in your 2013 Honda CR-V # RM-156-25.

In addition, if you aren't already doing so according to your Honda's owner's manual you should be pulling the accessory radio fuse to avoid draining the battery while flat towing. To make this process easier you can install the Roadmaster FuseMaster Fuse Bypass # RM76511. This way you will only need to flip a switch instead of removing the fuse.

expert reply by: Charles S