Alfa Diag does not talk to the ABS ECU. Have you got access to a circuit diagram ?
Circuit diagram of ABS unit, no. But i have those AR GTV-spider manuals, car whiring seems to be in there.
I assume you have the 5.3 system that is similaar to mine with EBD and I would assume the only thing different is the wiring changed in Oct 2000-onwards with 2 additional connections from the motoronic unit on pins29 and 30 otherwise it is identical connection but a more upto date ECU than mine.
Yes, the connection to ECU and that mine has 2 pumps inside the unit.
Is the Abs Unit connected to a good earth?
Cant find any signs of any lead being connected to the unit itself. There is even no a loose screw for that on hole where a fallen out screw could be. Is't the earth supplied througy the main cable?
Has it 12v on pin 16&17
Has it 12v on pin 15
If they are correct I think your ECU has been fried if it is getting a 12 supply and its earthed.
Super usefull info. Will measure first thing in the morning.
For all three faults ABS,Handbrake and speedo are outputs from the Ecu it would appear not to be switched on.
True, the ecu does not see the ABS unit, therefore also no diagnostic tools can't access it.
Any chance to see if you could hang another ABS unit with the correct ECU to plug in just to see if the lights go out?
Very slim chance of that, i know only one GTV which will suit. This was my firs idea.
Sorry if I am stating the obvious.
Check, check and double check. When i get time to read the manuals i have no access to my car and when i got the car, i don't get time to read the manuals
So any help is well appreciated.