I hooked my 2 place snowmobile trailer up this week to see if
everything was still working and found that my lights are acting very
strangely. Here is a breakdown:
left turn signal = works OK
right turn signal = works OK
touch brake = all trailer lights on
right signal + brake = all lights blink
left signal + brake = all lights blink
all trailer lights on correctly
touch brake = all lights turn off
left signal = all lights blink
left + brake all off except left signal
right signal = all lights blink
right signal + brake = all llights off except right signal
I've done the following to try and diagnose this:
ran a new ground wire directly from the trailer tongue to the frame of
the truck = no change
the trailer has 7 night time lights 2 at the front, 2 at the sides and
3 at the back plus the the 2 sealed units that do all three (brakes,
signal and night light). I've disconnected the 2 lights at the front
of the trailer. I've also regrounded the 2 sealed units as well as the
2 lights on the side of the trailer. I haven't done anything to the 3
night lights at the back of the trailer.
I've also got a testor that has a ground wire and a pointed end. You
attach the wire to a ground source and touch the point to power and a
light comes on. With this I've tested the connector coming from the
Truck and everything appears to be working normally.
Another strange thing that I noticed is this.
If I have the lights on and then put either signal on, all of the
lights start to blink. If I then physically unplug either of the rear
brake/signal/light units and then turn the lights off all of the
lights continue to blink. Where are the night lights getting power
from? It doesn't do this if I don't unplug one of the blinker lights.
Anyone have any suggestions? I haven't done anything to the trailer
since last season and everything worked perfectly then.