Can I get your opinions and suggestions please.
I have a number of traffic lights in my neighborhood that refuse to see my bike...or my truck for that matter. It appears to me that when I pull up to one of these lights and activate my door lock switch a few times I can “walk” the lights through the cycle and back to my turn. The door locks appear to be electromagnetically controlled.
First, are these locks actuated by an electromagnetic pulse, or a geared motor?
Second, If they are magnetically controlled, can I actually”walk” the lights to the pattern I want by repeatedly activating the lock switch?
I know that a number of you have mounted magnets to your frame and I can see that this would get the attention of the light switch. However, at a six way stop at three in the morning you might wait for 15 minutes for the green to come back to you. Unless of course you are constantly moving forward and back to change your magnetic signature.
So the question becomes; If you can in fact walk the lights, could you strip a door lock actuator and mount it on your frame with a push button to energize it, and save some time and head aches?

Besides the magnets and such, check your local laws.  In some states, they allow a motorcycle to go through a red when traffic is clear if it does not change after either minutes, or if a known inoperable light, it can be treated as a stop sign (see Florida below).

My advice is that if your state allows it:  FIND IT & PRINT IT OUT and carry it with you.  Just because it's in the books doesn't mean every officer has all state laws memorized.

I live in Wisconsin, and I turn left on red all the time because of the mal-adjusted sensors.

On another note, I was told a few years ago that they can adjust the sensitivity of the sensors, anywhere between some scrap metal lying on the ground to a tank.  If you have a few that really give you a hard time, you can try contacting your DOT and getting them to increase the sensitivity.

-----------------------------------------------------
South Carolina became the seventh state to give motorcyclists license to proceed with caution after stopping when the device that causes the light to change from red to green doesn’t activate.

North Carolina passed a similar law in 2007. Wisconsin (2006), Idaho (2006) Arkansas (2005), Tennessee (2003) and Minnesota (2002), all have passed laws the past six years.
-----------------------------------------------------

and to answer your question...
"First, are these locks actuated by an electromagnetic pulse, or a geared motor?"

Both, a motor spins a set of gears to unlock your door. im surprised a small door lock motor will change the lights but that kinda cool....heh
They are 12 volt actuators and could be mounted under the bike i guess. they arent meant to get wet and may not last long if they do.

Still looking for feedback.
Some of my co-workers are reporting back that it seems to be working for them. As a rule they are tripping the door lock button up and down two or three times, waiting a three count and doing it again. Here in Poenix the walk/dont walk sign will flash a hand sign for 20 sec. then a solid hand for five more...then you get green...if you are lucky. Nothing like sitting in 115 degree sun waiting on a light that doesn't know you are there. It was 104 at 11:00pm last week. Biking AZ in the summer time..."Hell on wheels"!

"Try rev'ing the engine.  Sometimes spinning the generator faster generates a field that activates the sensor--or stopping and re-starting the engine to get the field from the starter motor. "

So...how would revving or restarting the engine do anything to change the "metal" signature to the sensor...except to make a momentary change in the magnetic field strength? If that change works wouldn't a magnetic door lock actuator do the same thing?
I believe that this works and I am getting some feedback indicating that it is working for others. I am asking if any of you have had a similar experience. If enough people answer yes, I will locate a door lock actuator from a Saturn Ion or Isuzu Amigo, (those that I feel are shown to work) and wire it into my harness with a momentary push button switch.

I've turned the bike off and restarted it to get traffic lights to change. The sensors work on a change in the magnetic field either from a lump of steel stopping like a cage or the change caused by the magnetic field that's put out by a bike starter or electric windows and locks being operated. I've never tried flipping the locks on my truck, instead I just roll the truck forward about a foot.