HELP: Reverse light / park assist problem
Hi everyone, I'm a new member with an easy upgrade gone wrong. I have searched high and low on the internet with no luck. This may be a long explanation, but I hope someone can shed some light and I can stop feeling embarrassed.
My wife has a 2013 FX4 screw, while installing some Aux reverse lights under the rear bumper I managed to screw up her park assist. I was taking a very straight foreword approach at installing them, nothing fancy. I took 2 LED work lamps and grounded them, then with a common "HOT" wire I tapped into the blue/white wire on the back of the tail light. Upon trying it i put it in reverse and all 4 lights (2 factory/2aux) flashed then died. I thought I grounded something out???? I checked fuses ect... Then found they would flash like that the first try every time after re cycling the key. So I got mad, left it in reverse and cut my "new" hot wire leading to the aux lights and..... The 2 factory's instantly came back on.
So I scratched that idea and moved my hot wire to the + reverse lamp wire on the back of the trailer plug. Put it in reverse and...... Yaaaay they work! But then the dash says "check park assist" and keeps toggling between on/off, beeping, just going crazy. So in my same fashion I got pissed this time, left it in reverse and cut the hot wire to the lights once again. The lights went out and the park assist works again.
Someone else out there has to have had a similar problem, all I want is for more lights to come on in reverse, and my wife not to back into anything.