Yeah, the TCU fuse is fine (unless there is another fusebox somewhere else)

...Do you know where the electrial connections to the trans is?

I need to Vag-com the car again to pull the excact code, but I beleive I remember the engine and ABS reporting a communications error with the TCU

THANKS!

 

Actually I beleive the code read "missing information" from the TCU

 

Here are the error codes:

ENGINE:
18034 - Powertrain Data Bus: Missing Message from TCU [***WILL NOT CLEAR***]
P1626 - 004 - No Signal/Communication
17887 - Brake Boost Vacuum System: Mechanical Failure
P1479 - 008 - Implausible Signal
18057 - Powertrain Data Bus: Missing Message from ABS Controller
P1649 - 008 - Implausible Signal - Intermittent
16805 - Warm Up Catalyst: Bank 1: Efficiency Below Threshold
P0421 - 001 - Upper Limit Exceeded - Intermittent
16815 - Warm Up Catalyst: Bank 2: Efficiency Below Threshold
P0431 - 001 - Upper Limit Exceeded - Intermittent
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 002 - Lower Limit Exceeded - Intermittent



TRANS: [***Cannot Communicate***]



ABS:
01826 - Sensor for Steering Angle (G85): Supply Voltage Terminal 30
35-10 - - - Intermittent
18034 - Powertrain Data Bus: Missing Message from TCU [***WILL NOT CLEAR***]
P1626 - 35-00 - -



AWD: [***Cannot Communicate***]

 

errrr did u flood ur tip box recently? ...

 

i just bought this car 6 months ago, and things started failing IMMEDIATELY (this is just the latest problem- i've had 2x mass airflow sensors go bad, a vacuum valve, both catylitic converters)... since it's cheaper to lease a new A4 with FREE maintainence (plus it's not a full time job to keep up with the maintainence- i've taken off 10 days from work just to take this thing to the dealer who isn't open saturday and takes 2-4 WEEKS to get an appintment)... this car is not economical and needs to be recycled into tin cans!! i think i'm going to cut my losses, scrap the A4 3.0 and buy a new camry!

 

nope, but it did start to happen when we received several days straight of rain ... i WISH the car was flooded, but i'm not that lucky LOL

 

well it ight have been that when it rained it flooded ur tip box ...

 

what year is the car? Did you buy it from a Hurricane effected state?

 

isn't that box under the carpet (no rain would get there)? ...i checked; it's bone dry

 

2002... nope... it was local and was inspected to be fine when I bought it... but immediately fell apart!