No response from controller with HEX-NET

   #1  

Znippie

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Hello!
I recently bought a HEX-NET wifi, and it have worked perfectly on my car (Audi B7 and VW Tiguan) with both wifi (pc) and cable (pc)
VCDS mobile also worked correctly.
Earlier this week I tried to access the controllers, but got "No response from controller" on several controllers, including Engine, auto hvac and a couple more (dont recall) Autoscan is the same.

Instruments and centr electric seems to work fine, I can access those and read fault codes.
The engine runs well, the climate controller the same.

Last night i tried my buddys hex-can usb cable, and suddently i could access the whole car. It was with mine laptop, the only differene was the cable.
The B7 is canbus but communicates via k-line if im no mistaking.. Is there an issue with the hex-net or my computer?


Test for hex-can usb:



Test for the hex-net (tested with USB)


(I can see that CAN is saying testing, but according to ross tech website thats okay)

Any thoughts?
 
   #2  

golfi_vend

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Autoscan from that car, that is not communicating?
 
   #4  

Uwe

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The B7 is canbus but communicates via k-line if im no mistaking..
The Audi B7 has some modules on CAN, and some modules on K-Line. Depending on how it is equipped, it may even have some modules on a second K-Line.

Auto-Scans would be a good start.

-Uwe-
 
   #6  

Znippie

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Auto-Scans would be a good start.

-Uwe-
The autoscan doesnt help much imo

Code:
Sunday,06,May,2018,20:05:03:21245
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 18.2.0.3 (x64)  HEX-NET CB: 0.4411.4
Data version: 20180212 DS287.0
[url]www.Ross-Tech.com[/url]


VIN: WAUZZZ8EX7A161569   License Plate: 


Chassis Type: 8E (8E - Audi A4/S4/RS4 B6/B7 (2001 > 2008))
Scan: 01 02 03 08 09 0F 11 15 16 17 18 25 36 37 45 46 55 56 57 65
          67 69 75 76 77
 
VIN: WAUZZZ8EX7A161569   Mileage: 138200km-85873miles
-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 8E0-614-517.lbl
   Part No: 8E0 614 517 
   Component: ABS/ESP front       1729  
   Coding: 04255
   Shop #: WSC 12345  
   VCID: 65825D13FD333B6C8B-51F2

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 8E0-907-279-8EC.lbl
   Part No: 8E0 907 279 N
   Component: int. Lastmodul  ECE 0907  
   Coding: 11141
   Shop #: WSC 00851  
   VCID: 3D32D573352353AC33-4B00

5 Faults Found:
02738 - Bulb for Tail/Brake Light; Left 
            30-00 - Open or Short to Plus
02739 - Bulb for Tail/Brake Light; Right 
            30-00 - Open or Short to Plus
01493 - Bulb for Blinkers; Front Left (M5) 
            30-00 - Open or Short to Plus
01497 - Bulb for Blinkers; Front Right (M7) 
            30-00 - Open or Short to Plus
01505 - Bulb for Blinkers; Rear Right (M8) 
            30-00 - Open or Short to Plus


-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 8E0-959-655-94.lbl
   Part No SW: 8E0 959 655 G    HW: 8E0 959 655 G
   Component:    Airbag 9.41  H12 3730  
   Revision: 91H12373    Serial number: 0036M0G54GD%  
   Coding: 0030612
   Shop #: WSC 06335 000 00000
   VCID: 3B36DB6B7A375D9C0D-806E

   Subsystem 1 - Serial number: 6332DRB404744F30K

   Subsystem 2 - Serial number: 6342DRB40478C716T

   Subsystem 3 - Serial number: 6352ARB401DEFBABE

   Subsystem 4 - Serial number: 6362ARB401DEFA711

   Subsystem 5 - Serial number: 63729RB401E4649EZ

   Subsystem 6 - Serial number: 63829RB401E46EDE7

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 8E0-920-9xx-8EC.lbl
   Part No SW: 8E0 920 931 G    HW: 8E0 920 931 G
   Component: KOMBI+WFS 4     H14 0030  
   Revision: 0030        Serial number: 00000000000000
   Coding: 0005108
   Shop #: WSC 47856 001 1048576
   VCID: 2C14E8378E59CA2494-5184

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range        Labels: 8P0-907-357.lbl
   Part No: 8P0 907 357 F
   Component: Dynamische LWR  H02 0010  
   Revision: 00000001    Serial number:               
   Coding: 0000005
   Shop #: WSC 06335 000 00000
   VCID: 3D32D573642353AC33-8068

No fault code found.

-------------------------------------------------------------------------------
Address 76: Park Assist        Labels: 
   VCID: 55E26DD3AC53ABEC1B-4EEA
   Note: Excessive Comm Errors


End----(Elapsed Time: 06:47, VBatt start/end: 11.9V/11.6V. VIgn 11.6V)-----
 
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   #7  

Uwe

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The autoscan doesnt help much imo
It does. It shows us exactly what is and isn't communicating.

You definitely missing 01-Engine.
What engine type is in this car?
Does this car have a manual or automatic trans?
You're likely missing a number of other modules, but I'm puzzled as to why.
It's not that it's missing everything on CAN. Your ABS talks, and it's on CAN.
Can you post the scan you made with your friend's HEX+CAN please?

-Uwe-
 
   #8  

NEtech

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Can you try to make an Autoscan again with a charger connected or car running @ idle and post ?
 
   #9  

Znippie

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It does. It shows us exactly what is and isn't communicating.

You definitely missing 01-Engine.
What engine type is in this car?
Does this car have a manual or automatic trans?
You're likely missing a number of other modules, but I'm puzzled as to why.
It's not that it's missing everything on CAN. Your ABS talks, and it's on CAN.
Can you post the scan you made with your friend's HEX+CAN please?

-Uwe-
Yeah, well, thats what I wrote in the first post, so yes:rolleyes:
Im running an 2.7 biturbo swap. It was orginally a 2.0 TDI quattro
It has a 6 speed manual.
As mentioned, i was (and has always been) able to communicate with all controllers, until last week. The hex-net also worked on this car up until now.
The hex-net cable works fine on other cars.
Yes my ABS talks, but its been downgraded from a bosch 8.0 to bosch 5.7 to be able to communicate by k-line.
The ABS and the ECU share K-line wiring in the ECU harness.

Here is the scan with hex-can


Code:
VIN: WAUZZZ8EX7A161569   License Plate: 


Chassis Type: 8E (8E - Audi A4/S4/RS4 B6/B7 (2001 > 2008))
Scan: 01 02 03 08 09 0F 11 15 16 17 18 25 36 37 45 46 55 56 57 65
          67 69 75 76 77
 
VIN: WAUZZZ8EX7A161569   Mileage: 138230km-85892miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 078-907-551-AZA.lbl
   Part No: 4Z7 907 551 N
   Component: 2.7L V6/5VT         0003  
   Coding: 11712
   Shop #: WSC 02325  
   VCID: 4E989DE28A601E34DA-5102
   WAUZZZ4BX3N002260     AUZ7Z0B2143324

No fault code found.
Readiness: 0110 1101

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 8E0-614-517.lbl
   Part No: 8E0 614 517 
   Component: ABS/ESP front       1729  
   Coding: 04255
   Shop #: WSC 12345  
   VCID: 65CA424EFFD6FD6C8B-5120

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 8E0-820-043.lbl
   Part No: 8E0 820 043 BM
   Component:   A4 Klimaautomat   3233  
   Coding: 00000
   Shop #: WSC 00000  
   VCID: 6DDA3A6E2726C52CC3-50E6

1 Faults Found:
00819 - High Pressure Sensor (G65) 
            30-00 - Open or Short to Plus


-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 8E0-907-279-8EC.lbl
   Part No: 8E0 907 279 N
   Component: int. Lastmodul  ECE 0907  
   Coding: 11141
   Shop #: WSC 00851  
   VCID: 3D7ACA2E37C695AC33-4ACE

5 Faults Found:
02738 - Bulb for Tail/Brake Light; Left 
            30-00 - Open or Short to Plus
02739 - Bulb for Tail/Brake Light; Right 
            30-00 - Open or Short to Plus
01493 - Bulb for Blinkers; Front Left (M5) 
            30-00 - Open or Short to Plus
01497 - Bulb for Blinkers; Front Right (M7) 
            30-00 - Open or Short to Plus
01505 - Bulb for Blinkers; Rear Right (M8) 
            30-00 - Open or Short to Plus

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 8E0-959-655-94.lbl
   Part No SW: 8E0 959 655 G    HW: 8E0 959 655 G
   Component:    Airbag 9.41  H12 3730  
   Revision: 91H12373    Serial number: 0036M0G54GD%  
   Coding: 0030612
   Shop #: WSC 06335 000 00000
   VCID: 3B7EC4367AD29B9C0D-806E

   Subsystem 1 - Serial number: 6332DRB404744F30K

   Subsystem 2 - Serial number: 6342DRB40478C716T

   Subsystem 3 - Serial number: 6352ARB401DEFBABE

   Subsystem 4 - Serial number: 6362ARB401DEFA711

   Subsystem 5 - Serial number: 63729RB401E4649EZ

   Subsystem 6 - Serial number: 63829RB401E46EDE7

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 8E0-953-549.lbl
   Part No: 8E0 953 549 Q
   Component: Lenksáulenmodul     0701  
   Coding: 02042
   Shop #: WSC 06335  
   VCID: 4182B6DE4B3EF14C57-4ACE

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 8E0-920-9xx-8EC.lbl
   Part No SW: 8E0 920 931 G    HW: 8E0 920 931 G
   Component: KOMBI+WFS 4     H14 0030  
   Revision: 0030        Serial number: 00000000000000
   Coding: 0005108
   Shop #: WSC 47856 001 1048576
   VCID: 2C5CF76A8CBC0C2494-50E6

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 8E0-920-9xx-8EC.lbl
   Part No SW: 8E0 920 931 G    HW: 8E0 920 931 G
   Component: KOMBI+WFS 4     H14 0030  
   Revision: 0030        Serial number: 00000000000000
   Coding: 0005108
   Shop #: WSC 47856 001 1048576
   VCID: 2C5CF76A8CBC0C2494-5102

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 8E0-959-433-MAX.clb
   Part No: 8E0 959 433 CE
   Component: Komfortgerát T23    4135  
   Coding: 06992
   Shop #: WSC 00027  
   VCID: 76E81502527006F432-4ACE

   Subsystem 1 - Part No: 8E1959801H
   Component: Tõrsteuer.FS BRM 0606  

   Subsystem 2 - Part No: 8E1959802H
   Component: Tõrsteuer.BF BRM 0606  

   Subsystem 3 - Part No: 8E0959801E
   Component: Tõrsteuer.HL BRM 0606  

   Subsystem 4 - Part No: 8E0959802E
   Component: Tõrsteuer.HR BRM 0606  

1 Faults Found:
00955 - Key 1 
            35-10 -  -  - Intermittent

-------------------------------------------------------------------------------
Address 55: Headlight Range        Labels: 8P0-907-357.lbl
   Part No: 8P0 907 357 F
   Component: Dynamische LWR  H02 0010  
   Revision: 00000001    Serial number:               
   Coding: 0000005
   Shop #: WSC 06335 000 00000
   VCID: 3D7ACA2E64C695AC33-8068

No fault code found.

-------------------------------------------------------------------------------
Address 76: Park Assist        Labels: 8E0-919-283-8EC.lbl
   Part No SW: 8E0 919 283 D    HW: 8E0 919 283 D
   Component: Parkhilfe 4-Kan H06 0010  
   Revision: 00H06000    Serial number: 00067802030633
   Coding: 0010014
   Shop #: WSC 06335 000 00000
   VCID: 3162E61EAB9E61CCA7-5102

No fault code found.

End-------------------------(Elapsed Time: 06:38)--------------------------
 
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   #10  

Uwe

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OK, so what we have here is a Franken-car. ;)

BTW, I made an error a couple of posts up, the ABS is not what I found on CAN, the the airbag module is; but in the end, we can rul out that the problem is no communications on CAN. Most B7 ECUs are also do diagnostics on CAN, not on K-Line, which is why I was wondering about that.

TBH, I'm a bit stumped as to what's going on here. But since it's now clear that all the modules you're having difficulties with are on K-line, we know what to focus on. It would be interesting to put an oscilloscope on the K-Line at the diagnostic connector to see if there's a noticeable difference between the HEX+CAN and the HEX-NET on this car. However, I'm guessing you don't have an oscilloscope?

-Uwe-
 
   #11  

Znippie

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OK, so what we have here is a Franken-car. ;)

BTW, I made an error a couple of posts up, the ABS is not what I found on CAN, the the airbag module is; but in the end, we can rul out that the problem is no communications on CAN. Most B7 ECUs are also do diagnostics on CAN, not on K-Line, which is why I was wondering about that.

TBH, I'm a bit stumped as to what's going on here. But since it's now clear that all the modules you're having difficulties with are on K-line, we know what to focus on. It would be interesting to put an oscilloscope on the K-Line at the diagnostic connector to see if there's a noticeable difference between the HEX+CAN and the HEX-NET on this car. However, I'm guessing you don't have an oscilloscope?

-Uwe-
Thats right, I dont own a oscilloscope :)
Worth to mention is that when I disconnect the ECU, I get fault codes in the instrument, abs module and immobilizer that they arent communicating with the ecu. So they are somehow aware that the ecu is missing, and thats via k-line right? Same for the clinaye controller, if I pull that one out aswell
All the above with my hex-net
 
   #12  

Uwe

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Thats right, I dont own a oscilloscope :)
OK, if you'd try something much less costly than buying an oscilloscope , put an additional pull-up resistor on the K-line. I would suggest 1000 ohms between the K-line and +12V, preferably right at the diagnostic connector.

Worth to mention is that when I disconnect the ECU, I get fault codes in the instrument, abs module and immobilizer that they arent communicating with the ecu. So they are somehow aware that the ecu is missing, and thats via k-line right? Same for the clinaye controller, if I pull that one out as well
All the above with my hex-net
Nope, the K-Line is dedicated exclusively to diagnostics (and on some cars, to a short immobilizer negotiation between the immo and the ECU; these cars have a separate, dedicated 'W' line between the immo or instrument cluster and the ECU). The communications between the modules that results in "missing messages" or similar DTCs is on the CAN busses.

-Uwe-
 
   #13  

Znippie

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OK, if you'd try something much less costly than buying an oscilloscope , put an additional pull-up resistor on the K-line. I would suggest 1000 ohms between the K-line and +12V, preferably right at the diagnostic connector.


Nope, the K-Line is dedicated exclusively to diagnostics (and on some cars, to a short immobilizer negotiation between the immo and the ECU; these cars have a separate, dedicated 'W' line between the immo or instrument cluster and the ECU). The communications between the modules that results in "missing messages" or similar DTCs is on the CAN busses.

-Uwe-
There cant be any sertings on the hex-net that ive have misclicked or anything then? Very strange that the hex-can is working :/
 
   #14  

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OK, so what we have here is a Franken-car. ;)

However, I'm guessing you don't have an oscilloscope?

-Uwe-
I have but my leads won't reach to Norway :D and my Wi-Fi won't reach either :D

Sorry I'll get my coat :)
 
   #15  

Uwe

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There cant be any sertings on the hex-net that ive have misclicked or anything then?
None that I can think of.

Very strange that the hex-can is working :/
The K-line transceivers are a bit different and the HEX-NET might not be quite as forgiving of unusual loads on the K-line.

-Uwe-
 
   #16  

Znippie

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A little update, the car have been under heavy maintenance, so the battery has been disconnected for 3 months.. fired the car up today, and gave the hex-net a try. It worked properly the first time, and then I tried it the day after... back to «no response feol controller» :(
My vagcom «v1» still works normally. Im guessing the car is resisting the hex-net cable, but why?
 
   #17  

Uwe

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A little update, the car have been under heavy maintenance, so the battery has been disconnected for 3 months.. fired the car up today, and gave the hex-net a try. It worked properly the first time, and then I tried it the day after... back to «no response feol controller» :(
My vagcom «v1» still works normally. Im guessing the car is resisting the hex-net cable, but why?
Good question.

We the conditions the first day and the second day the same? Engine running or not? Battery voltage?

-Uwe-
 
   #18  

Znippie

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Good question.

We the conditions the first day and the second day the same? Engine running or not? Battery voltage?

-Uwe-
Yeah, conditions where the same. The issue is the same, even with the engine off or not. Battery voltage 14,1.

I saw another post with a slightly similar issue, where you asked the threadstarter to check mvb 125 and 126 in the instrument cluster (due to CAN communication i belive)
So I did, and this is what I got:


But then I noticed that when I run the engine module, under "Comm status", is says "Kline init failed"


So I guess youre onto something here Uwe with the Kline.. But I still wonder why the HEXCAN is able to communicate with the ECU, and why does it work after a while without the battery beeing connected :confused:
 
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   #19  

_Val

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Could you put this A6 C5 engine ECU on the desk, add couple wires to it and try connecting it with hex-net without interference from other control modules?
We could help with the pinout.
 
   #20  

Znippie

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Could you put this A6 C5 engine ECU on the desk, add couple wires to it and try connecting it with hex-net without interference from other control modules?
We could help with the pinout.
Sure, no problem. We can do that
 
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