Lights Not Working After Installing Roadmaster Diode Wiring Kit

Question:

im wiring a 2014 jeep grand cherokee with the wiring diode kit. both the brake and turn use the same bulb i have great ground and power coming from the infoot and power coming from the out but the lights do not work neither the brake or turn signal. ive wired more than 200 of these and have never had this problem i keep getting told its a ground issue. but i have a good ground im so cinfused

asked by: Scottie

Expert Reply:

First, lets look at what is going on with the motor home. If it has a trailer connector on it you will want to test it using a circuit tester such as # PTW2991. If some of the circuits are not working then you know that the issue is on the motor home side. If they all check out fine then the issue is likely in either the kit used or the motorhome Using this will help you check for shorts in your current wiring.

expert reply by: Noah E