After installation in a 2016 Mazda BT50, I found that the Tow-Pro™ Elite LED was flashing blue every second unless the brake pedal was depressed (when no trailer is connected). Please advise?
This flash pattern points towards an unstable power supply.
A process of elimination found that the Red wire (from trailer plug brake light circuit) had an oscillating voltage. After redirecting the Red wire to the brake pedal switch, the problem was resolved.
Suitable connection points include:
• The brake pedal switch
• The trailer connector (with a diode on the brake light wire on the vehicle side of the junction preventing back feed into the vehicle when the Tow-Pro™ Elite is manually activated).