1991 accord lx 2dr, 4cyl/automatic transmission. owner for 2 years so far.

problem- while driving, "S" light started blinking, i was low on fuel, so initially i thought it may have been due to that(pgm-fi causing "s" light to blink), after filled up light was still blinking. atf fluid looks nice, and is at correct level.

so far ive- removed 7.5a fuse 15 secs to clear tcu mem. replaced, drove fine for about 2 blocks( shifting properly between all gears ), then back to same problem. pulled code, 7 blinks, none others. shift solenoid, or tcu/tcm. so i pulled the tcu out( it looks to have been replaced prior to me ) and is nearly perfect inside, nothing like the pictures i found of bad caps, and resistors. so, assuming the tcu is good, i pulled the shift solenoids(seals are good, and mesh is clean). with direct battery voltage applied they operate. 30 ohms resistance between 1 and 2 ( A and B ), harness removed, which i read should be between 12 and 24. with the solenoids back in, and a meter on (pos)female end of harness( shift solenoids ) and (neg) battery terminal i get 2.35vdc gear 1, 3.5vdc in 2, and back to 2.35vdc for d3, and d4(last two make sense to me). i checked the lock solenoids for reference, and the voltages are similar, as is the resistance between the two solenoids. shouldnt i be getting battery voltage at one lead to open/close the solenoid at least in 2, since both A and B operate for gear 2 to engage? it doesnt seem like 3.5 volts would operate the valve sufficiently. can someone help me locate the wire to the harness for the shift solenoids so that i may check resistance in the wire? or if tcu is outputting incorrect voltage? solenoids did not look damaged, i could not get them apart and did not want to harm anything more, but appear to be in pretty good shape. any help would be greatly appreciated. thanks and have a great day.

Ryan