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Discussion Starter #1
I can only communicate with the ECU and ABS, not the CCM or Instrument cluster or door modules. Does the k-line go directly to the ECU and then CAN line to instrument cluster then to every thing else? If I an wrong (most likely) let me know just trying to figure out where my problem is most likely.
Thanks for any help
 

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I was looking to correct the same problem in mine. On the other forum, someone said disconnect the battery and touch the pos and neg leads to each other for about 30 seconds(not to the battery!), and you should have full access again. I haven't had time to try it yet.
 

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Send a PM to Uwe or Dana at Rosstech to get their attention, they would probably know. Go to search and type in those names into the search by user name to find their posts and profiles. If you find out, please share.
 

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Discussion Starter #4
Did the battery trick, did not help. I Found that last night I could connect to the CCM if I pushed and held the unlock button on the FOB, I had to hold it the entire time I was connected to the CCM. I looks like avoltage is not where it should be, I still don't know if this is a voltage inside or outside the CCM.
 

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Hi,

The Mk4/B5 depends on the year. In general, 2001 and older Mk4 are K line cars. 2002 and newer are still K line, but they have internal CAN high and CAN low wiring from the cluster to the other modules. In that case, the communication goes through the cluster (which houses diagnostic capable addresses 17, 19, and 25)

The Passat splits at the B5 -to- B5.5, so 2001.5.

http://www.ross-tech.com/vag-com/aftermarket-radio.html

Please post the Auto-Scan (so we can see what is talking) and vehicle model and year, with the production date if possible.

I never attempted or heard of the lock button trick..that's neat.. .but it will be even better when it communicates normally ;)

-Dana
 

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Sorry forgot all the important info, I keep forgetting that not everybody on the internet is a mind reading Ninja :)

2002 Jetta TDI, manual trans, power windows/locks, heated seats, IMOBO delete, think that is about it.
It has an aftermarketish radio (BECKER out of a Korean market Tiboron)...I worked for Harman International for 10yrs as a tech/installer in their oem group. The radio k line is not tied to anything.

VCDS Version: Release 10.6.1
Data version: 20100831
Monday, 11, October, 2010, 18:27:07:58422
Chassis Type: 9M - VW Jetta IV
Scan: 01 02 03 08 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57 75 76
VIN: 3VWSP69M32M000000 Mileage: 366950km/228012miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 038-906-012-AGR.lbl
Part No: 038 906 012 FD
Component: 1,9l R4 EDC G440SG 4102
Coding: 00002
Shop #: WSC 00066
VCID: 57B37AEB9F7F

3 Faults Found:
17055 - Cylinder 1 Glow Plug Circuit (Q10): Electrical Fault
P0671 - 35-10 - - - Intermittent
17057 - Cylinder 3 Glow Plug Circuit (Q12): Electrical Fault
P0673 - 35-10 - - - Intermittent
16512 - Coolant Thermostat Valve (N214): Temperature below Control Range
P0128 - 35-10 - - - Intermittent
Readiness: 1 3 0 0 0

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 1C0-907-37x-ABS.lbl
Part No: 1C0 907 379 J
Component: ABS FRONT MK60 0103
Coding: 0004097
Shop #: WSC 03313 551 00000
VCID: 3167E473D15B

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 6Q0-909-605-VW5.lbl
Part No: 6Q0 909 605 F
Component: 04 AIRBAG VW6 0202 0004
Coding: 12340
Shop #: WSC 00066
VCID: 3A75C35F0C2D

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 1J0-920-xx5-17.lbl
Part No: 1J0 920 906 L
Component: KOMBI+WEGFAHRSP VDO V58
Coding: 07232
Shop #: WSC 00000
VCID: 3167E473D15B
3VWSP69M32M007910 VWZ7Z0A3842594

2 Faults Found:
01177 - Engine Control Unit
64-10 - Not Currently Testable - Intermittent
01330 - Central Control Module for Central Convenience (J393)
49-00 - No Communications

-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels: 6N0-909-901-19.lbl
Part No: 6N0 909 901
Component: Gateway K<->CAN 0001
Coding: 00006
Shop #: WSC 00066
VCID: F0E1A1779AD1

1 Fault Found:
01330 - Central Control Module for Central Convenience (J393)
49-00 - No Communications

End ---------------------------------------------------------------------
 

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This car would have a K wire from pin 7 on the DLC (OBD-II plug) to the cluster, and all of the modules should be CAN high and CAN low from there. I do see a K wire splice in the diagram to the 46 module, but I'm not so sure that's correct. The only normal exception is an additional W line to the Ecm, but that isn't related to this issue.

17 / 19 is complaining about no communication and you can't talk direct under normal circumstances, so I think power / ground to the 46 module, the CAN wire(s) or the module itself is bad. The other (slim) possibility is that someone has put the wrong, older gen. 46 module in the car.

Look at Measuring Block 130 in 19 -CAN Gateway and see if you have 1 -or- 0 for the comfort sys. I suspect 0 = fail. Then hold the remote button and see if it changes, since I've never heard of that trick. This is checking the internal CAN communication status.

This module has several power sources / fuses. Two of the fuses look like hidden ones above the relay panel, the others are in the normal dash panel. What does and doesn't work properly on this car that could be related, such as dome lights, fuel door, etc?

If you want to rule out the possibility of the K wire, look for a Gray and White stripe wire in T23/11 at the 46 module. That's a 23 pin connector, and the # 11 position. If it does exist, you would have full continuity to pin 7 at the DLC.
 

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Discussion Starter #8
OK so I got a new to me CCM and every thing works now... except the CCM i got is from a 4dr Golf and it treating my trunk lid as a hatch and ever time i try to lock the car it opens the trunk. I know i saw somewhere on the forum how to chang that, I have tried searching but I guess I am not typing the right stuf in the search box. Can one of you fine people point me in the right dirrection?

By the way I greatly appreciate all the help everybody has given to help figure this out!!!!
 

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IIRC I read that it's hard coded to the module and that the serial number or something has to be the same too.
Yes, the module has a color code (aka Index) and the last digits determine the full part #. For example this is my '02 US Spec. (2 Door) Gti:

Address 46: Central Conv. Labels: 1C0-959-799.lbl
Part No: 1C0 959 799 C
Component: 1J Komfortgerát HLO 0003
Coding: 00064
Shop #: WSC 00001

Part No: 1C1959801A
Component: 1J Tõrsteuer.FS KLO 0002

Part No: 1C1959802A
Component: 1J Tõrsteuer.BF KLO 0002


In that case, 1C0 959 799 C 01J should be the full part number and you will see that both window motors also have the 1J color code. (1C1959801A 01J).

The base part number of 1C0 959 799 C has 100 possible color codes, and the exact replacement (or newest dealer revision) should be used as a replacement. The only temporary fix I can suggest would be to code the unit to a 4 door: 00066. That won't correct the trunk pop because the Golf and Jetta use different latches and switching. If I'm not mistaken, once you pop the Jetta trunk, it's open. If I pop the hatch and don't open it, it re-locks by itself.
 
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