Hi all!
I'm opening this topic bc I have converted my A4 B5 1.8t from stock 8D0907557T or 8D0907558E ECU, which are tuned through chip swapping, to 06A906018AQ ECU form Golf or A3 ECU, which can be tuned though OBD port. I have been successful with it and already have flashed the ecu through the OBD port, but I'm having trouble with DTC stuff because of differences between the cars:
I am getting in the 018AQ ecu a DTC for the ABS module because, as wiring diagram suggests, ECU connects with ABS module through CAN line, where as 8D0907557T or 8D0907558E do not:
18259 - Powertrain Data Bus
P1851 - 35-00 0 Missing Message from ABS Controller
I would want to delete this DTC as it makes no sense for my application and ABS is working just fine, like with the stock ECU.
I've tried to look up for the DTC code in the DTC table I have defined in my A4 tune and Golf tune, but there was nothing metioned as "ABS" but instead I found ASR, which made a bit of sense as ASR (traction control) is made by the ABS module. As you can see in the picture, comparing maps, circled in red is the only difference I found, but zeroing LDCAS in my golf tune did no result...
I also found this thread
http://nefariousmotorsports.com/forum/index.php?topic=567.0 from what I understand are three DTC systems: DTC Error Code Class Table, DTC Manufacturer P-codes, and DTC CARB P-codes. But I believe this thread applies to ME7 ecus and that I cannot make the calculations it explains to find the DTC in my case.
Can anyone point me in any direction? I would be very appreciated. Have tried also 018CG file, which is cross flashable and is also defined here pretty well, but same DTS appears and also comes up another one for Missing Message from Airbag module, so it's worse...
Thank you so much.
Best regards