Technical 500l automatic gearbox issues again

[2000peanut]

so im back again with yet another auto gearbox problem ( I'm really starting to dislike this car)
the hydraulic pump for the gearbox is going continually with red transmission light on dash
i have to disconnect the battery to get it to stop . plugged it into a obd11 and comes up with code p1769-62
relay stuck closed . so i swapped the relay with another one and all was ok . 3 days latter same problem but now the pump continues to run even when the relay is removed
anyone know what could be the problem now i have already spent a fortune having a new clutch fitted only a couple of months ago . the oil level is correct

 

[the green vanper]

Hello,

Is it an automatic, or Dualogic / Comfortmatic / Selespeed?

 

[2000peanut]

it is a dualogic fiat 500L 2014 The pump is running all the time even with the relay out

 

[the green vanper]

Dualogic is not automatic. Has it been PROPERLY serviced before? This however might not be the cause here.

Are you sure you took the correct relay out? It looks like a wrong one, or one of multiple. Or some kind of short. Have you checked a wiring diagram?

 

[2000peanut]

when the car first did this i removed the relay t20 the pump stopped straight away i changed the relay with another identical relay and the pump stayed off , The car drove fine for a couple of days and them when pulling up outside the pump was again running with the engine switched off . This time removing the relay makes no difference i haven't got a wiring diagram only thing i have read about is either the pump itself or the accumulator is at fault

 

[the green vanper]

Which engine is that? I'll try to generate an eLearn doc if available in the evening.

 

[the green vanper]

Hahaha, FIAT is very helpful, as usual The official troubleshoot for the error you've got:

They don't even bother to mention which relay is that...

Confirm the engine type, perhaps the wiring diagrams will tell more.

 

[2000peanut]

its the 1.3 turbo diesel now i have been out trying again tried resetting gear box erasing codes and nothing so removed relay T20 and after 4/5 minutes the pump stopped so i have put the relay back in started the car again and run it around the block and all well but for how long i don't want to sell the car as it owes me to much money only done 43.000 miles i paid to much for it and spent about £1500 on repairs