Thread: Transmission ECU swap

Do you have any Diag gear you can interrogate the EAT with?

It's possible it is faulty, is also possible you didn't manage to get the connector in correctly.

Lastly, the swap could have coincided with your battery being on the way out, this will cause the same issue.

Test those things and see what you get.

Cheers
James

The answer is in your post...

RR P38 trans controller.

These are completely different part numbers to D2 V8 trans controllers that are being used to replace TD5 ones here and therefore presumably have been programmed by Bosch
and ZF to suit RR P38 only.

Can you tell me the LR part no. of the trans controller you removed from your D2?

I would be interested to know if yours is using the same as Australian TD5 EU3 engines.

Should be a IGG 000 070 in that case.

Originally Posted by brenovalle

I have a 2003 Td5 Discovery with REMAP by Td5 Inside.
I decided to swap the Transmission ECU by one from V8 RR P38.
After the process the engine starts but the Transmission doesn't works properly. It sticks on emergency mode and only uses the 3rd gear.
Is there any suggestions?
Is it possible that resetting the adaptive values it works again?
Thank you in advance for your kind attention

D2 TD5 tcm and D2 tcm are not interchangeable, at least 1 pair of pins for data are numbered differently.

Originally Posted by DazzaTD5

D2 TD5 tcm and D2 tcm are not interchangeable, at least 1 pair of pins for data are numbered differently.

Made me look ya dirty chook

Which pair ? Can't find em

the tcu CAN bus pair go to different numbering on the ecu end of the loom depending on V8 or Td5 engine, can't spot any difference on tcu pin out for V8 or Td5

I *think* that was a misstype.

I *think* he meant the p38 one.

The electrical library for both of the D2 ones shows them as the same.

In fact one reputable wrecker thought they were the same unit and was selling them as interchangeable and identical.

Well shack out of amateur curiosity what did you do to arthur's beasty to stop the kickdown shenanigans?

Not the nitty gritty details just a laymans explanation, plus now you worked it out you can add that into your tunes for the rest of us that want to use V8 tcu in our td5s.

I got a tl866ii programmer and can read the 29c1024 in my MSB 101 192 but can't copy it to a blank 28f102

another forum member had no luck either, I do have some blank 27c1024 on the way but they are only one time programmable and I was trying to avoid that because I am sure I will muck up a lot learning/burning them.

The 29c1024 is actually meant to be a multi x reprogrammable version of the 27c1024 but I aint going to screw the file on it by experimenting and my current programmer hasn't got it on its compatible list anyway.

Originally Posted by johnp38

Well shack out of amateur curiosity what did you do to arthur's beasty to stop the kickdown shenanigans?

Not the nitty gritty details just a laymans explanation, plus now you worked it out you can add that into your tunes for the rest of us that want to use V8 tcu in our td5s.

I got a tl866ii programmer and can read the 29c1024 in my MSB 101 192 but can't copy it to a blank 28f102

another forum member had no luck either, I do have some blank 27c1024 on the way but they are only one time programmable and I was trying to avoid that because I am sure I will muck up a lot learning/burning them.

The 29c1024 is actually meant to be a multi x reprogrammable version of the 27c1024 but I aint going to screw the file on it by experimenting and my current programmer hasn't got it on its compatible list anyway.

Hi John,

It's taken a long time to get it nailed- along with other bits and pieces, (100s of hours TBH) and I think the results are great, so no... I don't really wanna give it away!

It should be do able on other units as well hopefully.

What's the fault you are getting trying to write to the reprogrammable chip?

Cheers
James