ECU swap config Aircon and ABS on nanocom?

F

fumiyasu

Member

Posts

40

• Apr 4, 2023

• #1

Hi,

I've just swapped my ECU to a NNN500250 from ebay on my 15p td5 defender. Did the normal map flash, injector, throttle and security learn. Truck starts and drives fine but I am getting fault codes for Aircon open load. Presumably the car this ECU came from had AC and so is giving a fault when I don't have AC on mine?

So, is there a way I can turn this option off so it doesn't give me a fault code? Not end of the world as it doesn't seem to do anything but just want to see if it's an easy nanocom fix.

Thanks

 

sierrafery

Well-Known Member

Posts

17,823

Location

Arad/Romania

• Apr 5, 2023

• #2

Hi, the 500250 was fitted exclusively to D2s, only the 000120 and 500020 were fitted to Defenders too, some sellers dont know that and they think if it's for Td5 works for all... if it accepted the Defender fuel map good for you but you can't do anything about the aircon thing cos it's a hardware issue and also no option in nanocom for that. I've seen cases when this kind of ECU rejected Defender fuel maps so you are a lucky one.

 

F

fumiyasu

Member

Posts

40

• Apr 5, 2023

• #3

Thanks, well I sort of knew it was a disco ECU but reading the nanocom forum I was lead to believe they all should work as long as the map flashed on is correct. Not sure about the not accepting defender map bit, I guess perhaps it could also be the 000xxx versus 500xxx.

Anyways thanks, guess I will just have to leave the fault codes on... Good thing we don't have a screen tht constantly reminds you of the faults!

Thanks

 

sierrafery

Well-Known Member

Posts

17,823

Location

Arad/Romania

• Apr 5, 2023

• #4

Here's the list with the basic Eu3 maps configurations for all the Td5 ECUs: https://docdro.id/rIYaMCl as you see the 500250 was not supposed to be used for defenders

 

F

fumiyasu

Member

Posts

40

• Apr 6, 2023

• #5

Thanks, just saved that to my growing reference docs folder.
I guess the non programmable part is where the difference is. Anyway it seems to be working ok for me so far still so fingers crossed that was the end of it.