K12, automatic, doesn't shift gears properly, NO error code

#1
Hello everyone,
I have a Micra K12, 2003, 1.4 petrol, automatic transmission.
It has a strange problem. The automatic transmission seems that doesn't shift gears properly.
It revs up the engine quite a lot until it shift up gear.
It is noticeable much more when it is on 2nd gear and has to shift to 3rd. It doesn't matter how much are the engine revs (3-4000) it doesn't shift up unless
take away the gas (stop pressing the gas pedal) and then goes up to 3rd, and the same with up to 4th gear.
It feels like torturing the engine.
I've get to a mechanic to try do get some diagnostic out of the computer.
He tried to connect 3 different devices to it but didn't get any error codes displayed.
He couldn't get into the automatic transmission diagnostics.
The only readings that seemed strange to him was that from Solul Pro scanner:
Engine rpm - 1184 (it changes according the engine revs)
Turbine rev - 0 (was always zero), no matter if the car was moving or not
Line press DTY (%) - 0
TCC S/V DTY (%) - 4
Self D DP LMP - ON (about this the mechanic told me that is some kind of emergency mode)
Edit: just found out that this is a Self diagnostic lamp, couldn't find anything else on Google that can point me to what could be the problem.
I'm from Bulgaria (sorry for my English).
Could you point me what could be the problem, what to look for?
Thanks a lot!
 

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#2
Cost of diagnosis & repair of auto transmission exceeds the value of a (2003) K12 Micra beyond about eight years old in the UK. Therefore there is little interest or detail knowledge of repair rebuilding expertise outside of the established auto transmission specialists.

Most people quickly trade it in at the first sign of trouble & move on to a newer better vehicle as the most economically viable optimal cost benefit solution.

Some detail info threads listed below for your further automatic research?

Reference: https://www.micra.org.uk/search/208317/?q=auto+k12&o=relevance

Good luck.
 
Last edited:
#3
Cost of diagnosis & repair of auto transmission exceeds the value of a (2003) K12 Micra beyond about eight years old in the UK. Therefore there is little interest or detail knowledge of repair rebuilding expertise outside of the established auto transmission specialists.

Most people quickly trade it in at the first sign of trouble & move on to a newer better vehicle as the most economically viable optimal cost benefit solution.

Some detail info threads listed below for your further automatic research?

Reference: https://www.micra.org.uk/search/208317/?q=auto+k12&o=relevance

Good luck.
Thanks a lot!
I was curious if someone has the same problem and if got it fixed. And if the problem is within the automatic transmission at all or some sensor or computer.
 
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