A low battery error message indicates that the main unit of the Roadmaster Even Brake # RM-9400 isn't receiving 12v power and would require you to investigate why. If you're not plugging into a 12v outlet in the towed vehicle that's receiving constant power then you'll want to install one like part # RM-9332. You'll also want to ensure that the ICX transmitter is also properly grounded to the frame of the tow vehicle.
The brake light switch wire is needed to get the confirmation that... view full answer...
Go To Results