weird problems with my Supra - URGENT HELP NEEDED!!!

as posted in this forum earlier, here's the update...

problems:

- both "L" and "2" lights stay ON when gear in "L" or "2" position, sometime when shifting through the gears.

- "MANU" light stays ON all the time but goes OFF at times.

what i've done so far:

- checked ATF condition and still reddish in color.

- DIY error code diagnosis using paperclip trick, both O/D and CEL flashing constantly which means normal/no error code stored.

- removed the MANU switch connector (located under the gear-shift compartment) and turned the ignition to ON but "MANU" light still stays ON.

- took it out for a short drive and run through all the gears, it seems ok despite all those weird lights still showing on the dash panel.

out of curiosity, could it be:

- Neutral Starter Switch problem?

- gearbox speed sensor(s) problem? *** it has 2 sensors ***

- gearbox solenoid sensor(s) problem? *** it has 2 sensors ***

- gearbox temperature sensor problem?

so, what could have gone wrong? i'm scared to drive fast now as i got worried the gear may suddenly change to "R" during high-speed cruise in "D" mode - this can severely damage the gearbox otherwise causing death!!!

hope to hear from you guys soon, thanks a million!

That is really odd. I doubt it will flip into R whilst you give it the beans, I hope someone who knows more about gearboxes comes to help! Audio, interior, locks and machine polishing I'm fine, gearboxes, uh no.

At a guess it could be a bad ground on the selector lights circuit. if the box works normally it's probably something pretty trivial.

thanks guys...

bad ground on the selector lights circuit? how should i fix this and which exact part should i work on?

You need to get an auto electrician to look at it, far too much to try and give details on all possibilities, sorry. I was just giving an opinion as to what it may be.