B6 wont start. TCU issue?

[Kearney36952]

Ok for some time My A4 has not been working. one day it just legit just starting sputting out and then puff now it wont start. To be honest with you people i'm like 110% lost on this i have a VAG-COM 409. It's kinda wonkey but it works. The last scan shows this... the front end was taken apart so some codes might just be BS. It sat for some time and i tried working on it the other day and i almost started it then it gave up. If someone knows WTF there looking at and can guide me through this i was immensely appreciate it. (responses to dumb A** standard plz)

VAG-COM Version: Release 409.1-S


Chassis Type: 8E - Audi A4 B6
Scan: 01,02,03,08,09,15,16,17,26,36,37,45,46,55,56,63,76

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Address 01: Engine
Controller: 8E0 909 559 D
Component: 3.0L V6/5V G 0002
Coding: 0016751
Shop #: WSC 13873
2 Faults Found:
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 002 - Lower Limit Exceeded - Intermittent
17972 - Throttle Actuator (J338): Under-Voltage during Basic Setting
P1564 - 002 - Lower Limit Exceeded
Readiness: 0110 1101

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Address 02: Auto Trans
Controller: 8E0 927 156 J
Component: AG5 01V 3.0l5V USA 0808
Coding: 0001002
Shop #: WSC 63351
1 Fault Found:
18164 - Tiptronic Recognition Switch (F189): Open or Short to Plus
P1756 - 003 - Mechanical Failure

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Address 03: ABS Brakes
Controller: 8E0 614 517 A
Component: ABS/ESP allrad 1726
Coding: 04497
Shop #: WSC 00000
3 Faults Found:
18258 - Powertrain Data Bus: Missing Message from ECU
P1850 - 35-00 - -
18034 - Powertrain Data Bus: Missing Message from TCU
P1626 - 35-00 - -
01826 - Sensor for Steering Angle (G85): Supply Voltage Terminal 30
35-00 - -

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Address 09: Cent. Elect.
Controller: 8E0 907 279 E
Component: int. Lastmodul RDW 0204
Coding: 00001
Shop #: WSC 00000
4 Faults Found:
01518 - Bulb for Back-Up Lights: Left (M16)
57-00 - Electric Circuit Failure
01502 - Bulb for Rear Fog: Left (L46)
57-00 - Electric Circuit Failure
00987 - Lamp for Brake Light: Left (M9)
57-00 - Electric Circuit Failure
01501 - Bulb for Blinkers: Rear Left (M6)
57-00 - Electric Circuit Failure

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Skipping Address 15-Airbags

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Address 16: Steering wheel
Controller: 8E0 953 549 L
Component: Lenksáulenmodul 0308
Coding: 01141
Shop #: WSC 63351
No fault code found.

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Address 17: Instruments
Controller: 8E0 920 950 H
Component: KOMBI+WEGFAHRS. RB4 D22
Coding: 01123
Shop #: WSC 01120
WAULT68E82A085820 AUZ6Z0A0116397
6 Faults Found:
00562 - Sensor for Oil Level/Temperature (G266)
30-10 - Open or Short to B+ - Intermittent
00562 - Shareware Version. To Decode all DTCs
27-10 - Please Register/Activate - Intermittent
01314 - Shareware Version. To Decode all DTCs
49-10 - Please Register/Activate - Intermittent
01315 - Transmission Control Module
49-10 - No Communications - Intermittent
01316 - Shareware Version. To Decode all DTCs
49-10 - Please Register/Activate - Intermittent
01320 - Shareware Version. To Decode all DTCs
49-00 - Please Register/Activate

[Audibot]

Everything I'm seeing points to an electrical problem. Probably something grounding related. My brother's old allroad starting killing sensor after sensor because the grounding bars below/around the battery corroded away. I would start by clearing the DTCs, and with a fresh battery connected up, seeing if they return. If they do, check the condition of those bars. May need to remove some rusted bolts, chase the threads with a die, tap the threads into the body (ground) and hope that closes the circuit.

[Kearney36952]

OK sorry I haven't been on replaying or even working on the car but i got some free time today. So I made some progress on the car... Well some its starts and revs but dies right out. I'm going to go in to as much detail as I can possibly can. So bear with me, The PRNDS on the cluster goes out every now and then. But everything else on the Cluster shows perfect, but when the PRNDS does not show it seems to correlate with the car not wanting to start. I can't keep the car on more than a couple revs. Also along with this nightmare of errors. The MPH needle likes to jump around sometimes and the dash likes flicker on sometimes. I’m going to post a video on this post so maybe u guys can get a better look at the situation on hand. The front end is kind of taken apart so some things on the dash will show like headlights and etc.

https://www.youtube.com/watch?v=qR5LOY93oYw

[Kearney36952]

I also noticed something wrong when I press the gas pedal in PRNDS disappear also. When I let my foot off the gas it seems to be back to normal but the car still won't start.

[chad99]

I wonder if your tiptronic shifter magnets are messed up?

Some strange things happen when the magnets break off from the shifter gate.

[Kearney36952]

I replaced them from another car at the junkyard. But yeah they don't work either.

[EuroxS4]

If the car does not start you need to start with the basics.Is the engine timed correctly and spooning freely??Do you have fuel at the fuel rail???Do you have spark at the ignition coils???If you have all 3 engine should start.The TCM will not cause a no start.mu suggestion is clear all the faults out of it and start from scratch.

Judging purely from the noise it's making its possible that you have a fuel supply or ignition issue.

Also the cluster should not go out when cranking.Make sure you have good ground on the engine and battery.


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[mosnet99]

Got alot of issues going on there in the scan but I just wanna say I spent a few days trying to figure out my own cranking but no start (one time it started then died like in the video) issue. Had no codes on mine but it ended up being a small metal particle on my crank sensor that was throwing off timing. I just replaced the sensor.

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[Kearney36952]

Hey thanks a lot for all your help i'll look in to all your ideas ASAP. But tbh i was focusing on the TCU more then anything. I'll start girding our some test soon. but again thanks a lot.