Tranmission Advice - Tiptronic - Pulling Hair out

[nkotecha]

Hello Forum

I have inherited an A4 2.8 with an issue. My PRND432 Lights are on constantly.

Running a scan I have got the following codes:

18262 - Drive Data Bus Hardware Malfunction
18258 - Data-Bus Powertrain Missing Message from Engine Contr
00623 - ABS/Transmission Electrical Connection

Now looking at the TCM, under the Drivers seat, and it seems the TCM has been replaced, as written in tip-ex is PASSAT.

Consuktinfg my ETKA, the part number for my TCM should be 8D0 927 156 BD, the one installed and the one I can interogate is 8D0 927 156 AR

The question is what do the two letters on the end mean and do they make any difference, as i can get an ECU from A8Parts which is for an A8, with the same engine code but the 2 letters are AP

Also any ideas where else i should be looking??

Car details are as follows

Audi A4 2.8 Auto, Eng Code: ACK, Trans Code: DSS

All help appreciated - i hope that there is someone out there that can help!!!!

Nik

[nkotecha]

Does anyone have no thoughts?

Originally Posted by nkotecha

hello forum

i have inherited an a4 2.8 with an issue. My prnd432 lights are on constantly.

Running a scan i have got the following codes:

18262 - drive data bus hardware malfunction
18258 - data-bus powertrain missing message from engine contr
00623 - abs/transmission electrical connection

now looking at the tcm, under the drivers seat, and it seems the tcm has been replaced, as written in tip-ex is passat.

Consuktinfg my etka, the part number for my tcm should be 8d0 927 156 bd, the one installed and the one i can interogate is 8d0 927 156 ar

the question is what do the two letters on the end mean and do they make any difference, as i can get an ecu from a8parts which is for an a8, with the same engine code but the 2 letters are ap

also any ideas where else i should be looking??

Car details are as follows

audi a4 2.8 auto, eng code: Ack, trans code: Dss

all help appreciated - i hope that there is someone out there that can help!!!!

Nik

[BW2309]

Hi Nick it's Ben!

Have you checked the plug connector on the side of gearbox itself? This plug is prone to collecting water and causing gremlins. Worth a check before I see her buddy!

[nkotecha]

Thanks matey - will try and have a look - if not let me know when I can book her in with you??