Toyota Repair: transmission solenoid, solenoid valve, credit question

Question
I am a student looking for an answer to an extra credit question. In regards to the SLN solenoid, what does SLN stand for?

Answer
It simply stands for solenoid, in this case it means( DTC P1765 Shift Solenoid Valve SLN Circuit (For
Accumulator Back Pressure Modulation)SL stands for shift solenoid, it is usually followed by either a letter or number designating which solenoid and what circuit it's controlling.