My '93 850 had the PNP (Gear Position Sensor, as it says on bill) replaced before I bought it, so its only like 500 miles old. Today I got in the car to go home from school and the up arrow was blinking. Usually, PNP failure right, from what I understand if PNP fails car locks in Winter mode. However, my car drives fine, it shifts through the gears, it's not sluggish so I'm pretty sure it's starting in 1st. I put the car in L and it was definitely in 1st gear. Still the up arrow and the Green Econ light continue to blink. Even after I stopped to go to the store and started the car up again. It won't shift out of park with foot off brake, I think thats the microswitch, that should be ok. So my question, What could it be?
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Matt in MA, '93 850 GLT, matto815@aol.com

there are a lot of transmission codes that will turn on your light. You should pull the code and check it out. the problem did not fix itself.

Later this afternoon, after a few startups while running around town, the blinking arrow disappeared. The car is still running great exactly as it has before, I'm confused. Can the light shut itself off, or does it shut off automatically after __ amounts of starts?
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Matt in MA, '93 850 GLT, matto815@aol.com

Have you checked the level and condition of the ATF?

What's it like?

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Lo Pan's Ghost

With intermittent problems, the light will shut off if the problem does not exist, but it will store a fault code. You need to read the codes. There are various sensors, solenoids, wiring or mechanical problems that will trigger the light.