00268 solenoid valve 6 problem

[2435mick]

Hi, I'm having a major issue with fault code 00268, solenoid valve 6 (N93) 009 open or short to ground -MIL on. ( 2006 2.5 TDI multivan)
So far I have replaced the solenoid ( also checked the original for resistance- it is correct), checked resistance at the 14 pin plug on the side of the box, also correct at 6.8ohms, checked for continuity between the gearbox plug ( pins 13 and 14)and the gearbox control module ( to the plug), all correct, checked resistance at the GCM plug, 6.8ohms so again, correct.
Occasionally I can get the fault to clear only to select drive and it comes back on.
I'm now at a loss as to what to do next other than the GCM.
Are the gearbox control modules know to develop faults?
Next question, if i need to replace the GCM do I have to specify one for a multivan or would one of an alternative vehicle such as a beetle or toureg etc be suitable?

 

[EuroX]

Please post complete auto scan if possible.

 

[2435mick]

Please post complete auto scan if possible.

I shall do this first thing in the morning ( or try and do a full scan)

 

[JMR]

Are the gearbox control modules know to develop faults?

sometimes
i am now fighting an Audi Q5 that had a dead /no comms transmission..all wires checked good...

 

[2435mick]

Please post complete auto scan if possible

 

[2435mick]

Wednesday,16,April,2025,09:03:07:34052
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 11 x64
VCDS Version: 25.3.1.0 (x64)  HEX-V2 CB: 0.4671.5
Data version: 20250408 DS365.0
www.Ross-Tech.com


VIN: WV2ZZZ7HZ6H101504   License Plate: 0700KCD
Mileage: 340680km-211688mi   Repair Order:



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 7H (7H - VW Transporter/Multivan (2003 > 2010))
Scan: 01 02 03 08 09 0B 0D 15 16 17 18 19 1C 22 2D 37 45 46 47 56
          57 6E 76 77 78 7D
 
VIN: WV2ZZZ7HZ6H101504   Mileage: 340680km-211688miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 070-906-016-BPC.clb
   Part No SW: 070 997 016 L    HW: 070 906 016 CR
   Component: R5 2,5L EDC G001AG  2603 
   Revision: --H02---    Serial number: VWZ7Z0F3420305
   Coding: 0001075
   Shop #: WSC 00999 444 64523
   VCID: 231437E857CDA852B29-5160
   VINID: 9E60AAAAA1D8A86601001140109FB3D5AE

No fault code found.
Readiness: 0 0 0 0 0

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 09G-927-750.clb
   Part No SW: 09K 927 750 L    HW: 09K 927 750 L
   Component: AQ 250 6F           0865 
   Revision: 00H36000    Serial number:              
   Coding: 0000008
   Shop #: WSC 02756 785 00200
   VCID: 3E22E69CDC6FE5BABD7-5160

2 Faults Found:
00268 - Solenoid Valve 6 (N93)
            009 - Open or Short to Ground - Intermittent
00268 - Solenoid Valve 6 (N93)
            012 - Electrical Fault in Circuit

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 7H0-907-37x-ESP-F.lbl
   Part No: 7H0 907 379 L
   Component: ESP FRONT MK25      0203 
   Coding: 0006187
   Shop #: WSC 02756 785 00200
   VCID: 3E22E69CDC6FE5BABD7-5140

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 7Hx-907-040.clb
   Part No: 7H5 907 040 C
   Component: CLIMAtronic T5      4221 
   Coding: 0011040
   Shop #: WSC 02757 785 00200
   VCID: 2B04DFC83F1D60120A9-5140

   Subsystem 1 - Part No: 7H5 907 049 D
   Component: Display_2_ClimaT5 X 0307

4 Faults Found:
00710 - Defroster Flap Positioning Motor (V107)
            000 - -
00565 - Rear A/C Control Head (Climatronic) (E265)
            004 - No Signal/Communication - Intermittent
00352 - Terminal 30A
            001 - Upper Limit Exceeded
00249 - Function Return Message for Recirculating Air Regulator
            002 - Lower Limit Exceeded
             Freeze Frame:
                    Voltage: 11.90 V
                    Voltage: 4.90 V
                    Voltage: 2.20 V


-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels:. 7H0-937-049.lbl
   Part No: 7H0 937 049 AE
   Component: BORDNETZ SGVER 1.0  2101 
   Coding: 0000357
   Shop #: WSC 39578 143 92661
   VCID: 75B039B0A9D966E2ACD-5140

2 Faults Found:
00900 - Fuse for Signal Horn (S194)
            014 - Defective - Intermittent
00966 - Fuse for Blinkers (S151)
            014 - Defective - Intermittent

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
   Part No: 1C0 909 605 F
   Component: 11 AIRBAG VW61 0R   0003 
   Coding: 12593
   Shop #: WSC 02756 
   VCID: 270C23F826F54472EE1-5140

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 1J0-907-487-A.lbl
   Part No: 1J0 907 487 C
   Component: Lenkradelektronik   0006 
   Coding: 00119
   Shop #: WSC 02761 
   VCID: 3138CDA018310AC2305-5160

1 Fault Found:
01426 - Controls in Steering Wheel (E221)
            41-10 - Blocked or No Voltage - Intermittent

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 7Hx-920-xxx-17.lbl
   Part No: 7H5 920 872 EX
   Component: KOMBI+WEGFAHRSP VDO V02 
   Coding: 05112
   Shop #: WSC 99999 
   VCID: 0D407150A4490E22F4D-5140
   WV2ZZZ7HZ6H101504     VWZ7Z0F3420305

No fault code found.

-------------------------------------------------------------------------------
Address 18: Aux. Heat        Labels: 7H0-819-008.clb
   Part No: 7H0 819 008 P
   Component: Standheizung        0208 
   Shop #: WSC 00000 000 00000
   VCID: 3928F580C541C282885-5140

2 Faults Found:
00664 - Fuel gauge
            002 - Lower Limit Exceeded
01336 - Company Data Bus for Comfort System
            004 - No Signal/Communication - Intermittent

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.clb
   Part No: 6N0 909 901
   Component: Gateway K<->CAN    0001 
   Coding: 00006
   Shop #: WSC 21823 
   VCID: 70BE08A4D3BB43CA7FB-5140

1 Fault Found:
00478 - Control Module; Display & Input; Comfort CAN; Rear (J524)
            49-10 - No Communications - Intermittent

-------------------------------------------------------------------------------
Address 37: Navigation        Labels: 7L6-919-887-DVD.lbl
   Part No: 7H0 919 887 B
   Component:      Navigation     0028 
   Coding: 0000101
   Shop #: WSC 02737 785 00200
   VCID: 3B24EF88CF7DF0929A9-5140

No fault code found.

-------------------------------------------------------------------------------
Address 45: Inter. Monitor        Labels: 7Hx-951-171.lbl
   Part No: 7H5 951 171 C
   Component: Innenraumueberw.    2917 
   Coding: 0000012
   Shop #: WSC 02737 785 00200
   VCID: 2F3CCBD80B051C32261-51C2

   Subsystem 1 - Part No: 7H5 951 178
   Component: Innenraumueberw.    1607

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 7H0-959-433.lbl
   Part No: 7H0 959 433 B
   Component: C2L Komfortger t     0004 
   Coding: 00078
   Shop #: WSC 39578 
   VCID: 323AC2AC1D3731DA49F-4B1E

   Subsystem 1 - Part No: 7H1959801
   Component: T rsteuer.FS KLO 0203 

   Subsystem 2 - Part No: 7H1959802
   Component: T rsteuer.BF KLO 0203 

1 Fault Found:
01134 - Alarm Horn (H12)
            49-10 - No Communications - Intermittent

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 7L6-035-186-DVD.lbl
   Part No: 7L6 035 186 D
   Component:        Radio        0028 
   Coding: 0016412
   Shop #: WSC 02737 785 00200
   VCID: 3436C4B4E2233FEA5B3-5140

1 Fault Found:
00880 - Connection to Speaker Rear Left
            007 - Short to Ground

-------------------------------------------------------------------------------
Address 6E: Ctrl Head Roof        Labels: 7L6-919-044-V1.clb
   Part No: 7L6 919 044 M
   Component: DACHDISPLAY         0539 
   Revision: 00800539    Serial number: 2009266.07   
   Shop #: WSC 00000 000 00000
   VCID: 41D89D60AD919A42C05-5140

No fault code found.

-------------------------------------------------------------------------------
Address 76: Park Assist        Labels: 7E0-919-283.lbl
   Part No: 7E0 919 283
   Component: Parkingsyst. T5 T5M 801 
   Coding: 01127
   Shop #: WSC 02756 
   VCID: 6C861CD4FF93A72A433-5160

No fault code found.

-------------------------------------------------------------------------------
Address 77: Telephone        Labels: 7H0-035-729.clb
   Part No: 7H0 035 729 F
   Component: CIB PAH  HW 203 SW  0309 
   Coding: 0000364
   Shop #: WSC 00000 000 00000
   VCID: 2F3CCBD80B051C32261-5140

No fault code found.

End----(Elapsed Time: 05:13, VBatt start/end: 12.0V/12.0V. VIgn 12.0V)-----
------------------------------14 Faults Found------------------------------

 

[JMR]

how are the pins ? sometime they need a bit of a twist to make a better contact ( in the wiring plug )

 

[2435mick]

how are the pins ? sometime they need a bit of a twist to make a better contact ( in the wiring plug )

I've given the plugs a clean with contact cleaner, done some basic tests with a multimeter, I'm getting a resistance reading across the pins when I check at the gearbox control module plug which is suggesting all is good ( 6.8 ohms) correct range is supposed to be between 4 and 8 ohms.

 

[JMR]

Pins heat up and cool down..sometimes contact cleaner is not enough , i take the safer route and i twist the pins just a bit to ensure proper contact. But , your ecu might be also bad under load..so it s a 50/50 proposal

 

[2435mick]

I've re checked contacts for continuity along with resistance, I cannot find any issues with any of the wiring, when I perform I diag check I'm repeatedly getting the same fault then occasionally it will clear only to return again

 

[2435mick]

Pins heat up and cool down..sometimes contact cleaner is not enough , i take the safer route and i twist the pins just a bit to ensure proper contact. But , your ecu might be also bad under load..so it s a 50/50 proposal

I've given the pins a slight twist...not made any difference unfortunately

 

[EuroX]

Why not ohms out all the solenoids and compare the readings?

 

[2435mick]

Why not ohms out all the solenoids and compare the readings?

solenoid 1 should be between 10-16ohns, actual is 12.9ohms
solenoid 2 should be between 10-16ohms, actual is 12.6ohms
solenoid 3 should be between 4-8ohms, actual is 5.9ohms
solenoid 4 should be between 4-8ohms, actual is 5.8ohms
solenoid 5 should be between 4-8ohms, actual is 5.9ohms
solenoid 6 should be between 4-8ohms, actual is 5.7ohms
solenoid 9 should be between 4-8ohms, actual is 5.8ohms
solenoid 10 should be between 4-8ohms actual is 5.9ohms

From my checks they are all well within the tolerances (all measured from the gearbox control module plug) so again it's proving there is continuity in the wiring etc

 

[EuroX]

solenoid 1 should be between 10-16ohns, actual is 12.9ohms
solenoid 2 should be between 10-16ohms, actual is 12.6ohms
solenoid 3 should be between 4-8ohms, actual is 5.9ohms
solenoid 4 should be between 4-8ohms, actual is 5.8ohms
solenoid 5 should be between 4-8ohms, actual is 5.9ohms
solenoid 6 should be between 4-8ohms, actual is 5.7ohms
solenoid 9 should be between 4-8ohms, actual is 5.8ohms
solenoid 10 should be between 4-8ohms actual is 5.9ohms

From my checks they are all well within the tolerances (all measured from the gearbox control module plug) so again it's proving there is continuity in the wiring etc

I agree but I am assuming this is with the engien and transmission being cold. Resistance goes up as temperature goes up so that may be a factor.

 

[2435mick]

I agree but I am assuming this is with the engien and transmission being cold. Resistance goes up as temperature goes up so that may be a factor.

Agreed...but the error code is showing continuously whether hot or cold. ( checked this morning first thing, it's cold but the code won't clear at all now)
The No6 solenoid I have replaced I have removed from another transmission of unknown origins, it would be rather strange to have the same fault showing ( but not impossible). My thoughts process now is to look at purchasing a new solenoid ( not sure just where from...I'm in Spain) and/or obtaining a gearbox control module to try that, thoughts?

 

[EuroX]

Open or short to ground could be wiring problem as well. Best to check resistance of wiring and all connections.

 

[2435mick]

Open or short to ground could be wiring problem as well. Best to check resistance of wiring and all connections.

I've checked the gearbox internal wiring, full continuity with no resistance, likewise I've checked from the gearbox plug to the GCM plug, again full continuity on minimal resistance ( milliohms as you'd expect over about 80cm/2' of wire).Is there anywhere else I could look at for wiring

 

[2435mick]

Ok, I have finally received a new solenoid ( as previous replacement was of an unknown entity), this has been fitted and the 'open or short to ground' has cleared but.....
I am now getting-
00268 solenoid valve 6 ( N93)
012 - Electrical fault in circuit -MIL on

so the next question ( as I've gone through the harness between the solenoid and the transmission control module plug, with a fine tooth comb)
Would the diagnostic indicate if it was something to do with the can bus signal or not

 

[Uwe]

Would the diagnostic indicate if it was something to do with the can bus signal or not

Not.

-Uwe-

 

[2435mick]

Discovered something new today, I can clear the fault code, drive the vehicle for 10-15mins before the fault re-appears so sounds temperature related, it was mentioned earlier in the post about the pins heating up etc so I'll take a closer look at them