Alex(Tenerife)
True Classic
So looking at cleaning up the loom and found some oddities/questions.
First it seems fiat used 2 different microplex ECUs for the 1301 uno turbo. I have the MED604C but have seen online MED603B. No idea of the differences between the 2 ECUs.
So I looked at my plug and comparing to the pin out and circuit diagram in the haynes manual and the fiat uno manual. They don't quite line up.
My plug, you can see pins used are: 1, 2, 3, 4, 7, 8, 11, 12, 13, 14, 15, 16, 17, 20 and 23
From the haynes manual (same in the service manual) 8 is not marked and neither is 23
Here we have pin 8 - great that is the diagnostic socket.
23 is still not marked!
I gained a 22 which is marked as Turbocharger operation warning light (whatever that is)
So what is the light on pin 22?
What is pin 23 for?
What difference is there between the 2 ECUs listed?
This is mostly curiosity, and maybe a chance to add a fun new warning light!
First it seems fiat used 2 different microplex ECUs for the 1301 uno turbo. I have the MED604C but have seen online MED603B. No idea of the differences between the 2 ECUs.
So I looked at my plug and comparing to the pin out and circuit diagram in the haynes manual and the fiat uno manual. They don't quite line up.
My plug, you can see pins used are: 1, 2, 3, 4, 7, 8, 11, 12, 13, 14, 15, 16, 17, 20 and 23
From the haynes manual (same in the service manual) 8 is not marked and neither is 23
Here we have pin 8 - great that is the diagnostic socket.
23 is still not marked!
I gained a 22 which is marked as Turbocharger operation warning light (whatever that is)
So what is the light on pin 22?
What is pin 23 for?
What difference is there between the 2 ECUs listed?
This is mostly curiosity, and maybe a chance to add a fun new warning light!