Here you go....P/u a 850 month ago. The arrow light on the info strip blinks now and again. (getting more frequent now). Auto Zone did the diagnostic for me. Code details says "Shift Solenoid B". A guy in the auto zones parking lot says that the sensor is located inside the tranny and can be costly to drop it. he suggested I change the tranny fluid and filter and see what happens to keep cost down. says could be clogged or something. I don't have the maint. history of the car. What do you think?