Electrical Mystery Tour
Since pick up of our new to us 2016 AS Classic, the rear lights (braking, turn, tail, back up) in the curbside nacelle have not worked properly. All other lights work well. When signaling a right turn, the dash indicator light blinks rapidly and I get a warning message that there is a fault in the right signal light.
I evaluated this with my buddy (Elec Eng) yesterday. We first cleaned up the 7 prong connector and umbilical.
We got everything to work correctly, but for reasons unclear, the rapid blinking would unpredictably recur.
We found that when rapid blinking occurred, turning off the blinker, turning the emergency flashers on, then off, then turn right again would restore proper operation until it all recurred.
It almost seems like the truck detects a high impedance for an instant and locks into the rapid blink, light out mode. It then gets reset and works for awhile.
I rented a U-haul last week and all worked well through the 4 prong plug.
A cursory search suggests that the 2016 Ford controls flashing through the engine control module instead of traditional flashers and may need new codes entered.
Anybody else have an experience with this kind of aberrant behavior?
Thanks for your time and attention.
2016 Classic 30 RBQ VROOMINUM
2016 Ford F-250 6.7L Diesel Crew Cab ELUKKA