Hi All,

 

Some help would be most appreciated. I'm out of ideas.

 

 I've been battling with a door lock since Friday when I bought a new to me car. Before purchasing I ran a full scan and no fault was showing on door locks.  I ran more than one before and after drive. No faults showed on doors.

 

When I got home and locked the car, I discovered the rear left door could be opened as if it was unlocked.

 

Pulled door card off and listened. Nice solid clunk when locking or unlocking but every time the door can be opened.  Car interior lights came on and went off with this door, so I though ok, only thing it can be is the lock actuator module. So I find a genuine one reselling on ebay for cheap, dealer price eye watering £190+vat.

 

I install it today, and when locking this new module now did 2 locks, one to lock and 1 I presume that then unlocks it. VCDS then showed the implausible signal on this replacement door lock.

 

I cleared tried again but it kept coming back. In frustration I removed and plugged the original back locked it, locked it, fitted it, Unplugged the loom and closed the door.  The door could not be opened at all (as I'd removed the loom).  So physically the door lock mechanism can lock.

 

I then clipped the loom back in and now this old one is showing implausible signal!  In addition there is a databus error.

 

But in measuring blocks, when locking the rear left door shows closed and locked but door handle open it first pull from outside.

 

Nb. This is on a golf mk7 but hoping my friends here on Briskoda have some ideas or experience to help me out. Full Scan below.

 

Tuesday,25,May,2021,13:57:19:03075
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 21.3.0.0 (x64)  HEX-V2 CB: 0.4543.4
Data version: 20210226 DS325.0
www.Ross-Tech.com

VIN: WVWZZZAUZGP570470   License Plate:
Mileage: 90662km-56334mi   Repair Order: 

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

Chassis Type: AU-VW37 (5Q0)
Scan: 01 02 03 08 09 10 13 15 16 17 19 20 22 42 44 52 55 5F A9

VIN: WVWZZZAUZGP   Mileage: 90662km-56334miles

01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: Malfunction 0010
10-Park/Steer Assist -- Status: OK 0000
13-Auto Dist. Reg -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
20-High Beam Assist. -- Status: Malfunction 0010
22-AWD -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
55-Headlight Range -- Status: Malfunction 0010
5F-Information Electr. -- Status: Malfunction 0010
A9-Struct. Borne Sound -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CJXC)       Labels:. 06K-907-425-V1.clb
   Part No SW: 5G0 906 259 J    HW: 06K 907 425 B
   Component: 2.0l R4 TFSI  H13 0002  
   Revision: --H13---    
   Coding: 091D00122466050B2000
   Shop #: WSC 00028 028 00074
   ASAM Dataset: EV_ECM20TFS0205G0906259J 001002
   ROD: EV_ECM20TFS0205G0906259F.rod
   VCID: 35372B5935C1B6936C5-8060

No fault code found.
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 02: Auto Trans (J743)       Labels: 0D9-927-770.clb
   Part No SW: 0D9 300 012     HW: 02E 927 770 AQ
   Component: DQ250-6A MQB  H53 4913  
   Revision: 06253104    Serial number: TFK01510131437
   Coding: 0014
   Shop #: WSC 00028 028 00066
   ASAM Dataset: EV_TCMDQ250021 001001
   ROD: EV_TCMDQ250021.rod
   VCID: 53F375C19B7588A3621-8006

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels: 5Q0-907-379-IPB-V1.clb
   Part No SW: 3Q0 907 379 AB    HW: 3Q0 907 379 G
   Component: ESC           H42 0723  
   Revision: 00000000    Serial number: 63065000000908
   Coding: 04FA93A15427296C077B070741C36920C92A94E0E08296F718425078C208
   Shop #: WSC 00028 028 00066
   ASAM Dataset: EV_Brake1UDSContiMK100IPB 034036
   ROD: EV_Brake1UDSContiMK100IPB_034.rod
   VCID: 7AADF8655C5F99EBC17-802E

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels:| 5G0-907-044.clb
   Part No SW: 5G0 907 044 BC    HW: 5G0 907 044 BC
   Component: Climatronic   H03 1001  
   Revision: 00001K08    
   Coding: 02120004200100011005000000101002
   Shop #: WSC 00028 028 00066
   ASAM Dataset: EV_ACClimaBHBVW37X 004131
   ROD: EV_ACClimaBHBVW37X_004_VW37.rod
   VCID: 698FB72929F9227338D-803C

   Fresh air blower control module (front): 

   A/C pressure/coolant temperature sensor: 

   Air quality sensor: 

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:| 5Q0-937-08X-HV1.clb
   Part No SW: 5Q0 937 086 AK    HW: 5Q0 937 086 AK
   Component: BCM PQ37BOSCH 028 0162  
   Revision: --------    Serial number: 86580711151990
   Coding: 03001B42C24122F30BA44080B10C07281000000000000000000000000000
   Shop #: WSC 00028 028 00066
   ASAM Dataset: EV_BodyContrModul1UDSBosc 015002
   ROD: EV_BCMBOSCH_015.rod
   VCID: 035385812B95D823921-8056

   Wiper motor control module: 
   Subsystem 1 - Part No SW: 5G2 955 119 A    HW: 5G2 955 119 A  Labels: 5QX-955-119-V1.CLB
   Component: WWS    150920  042 0551 
   Serial number:         151015075440
   Coding: 0E4DDD

   Rain/Light Recognition Sensor: 
   Subsystem 2 - Part No SW: 5Q0 955 547 A    HW: 5Q0 955 547 A  Labels: 5Q0-955-547.CLB
   Component: RLHS  037 0059 
   Serial number: S2Y15M11D09H02M27S29
   Coding: 90A8DD

   Anti-theft alarm system sensor: 
   Subsystem 3 - Part No SW: 5Q0 951 172     HW: 5Q0 951 172 
   Component: Sensor, DWA  005 0316 
   Serial number: 000000000ZY152802JH9

   Alarm horn: 
   Subsystem 4 - Part No SW: 5Q0 951 605 A    HW: 5Q0 951 605 A
   Component: Sirene, DWA  005 0312 
   Serial number: 00000000000033854488

   Humidity sensor: interior: 

2 Faults Found:
535060 - Databus 
          U1123 00 [009] - Received Error Message
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 2
                    Reset counter: 53
                    Mileage: 90662 km
                    Date: 2021.05.25
                    Time: 12:50:19

197128 - Lock Module for Central Locking; Rear Left 
          B12DB 29 [008] - Signal Implausible
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 4
                    Fault Frequency: 4
                    Reset counter: 93
                    Mileage: 90662 km
                    Date: 2021.05.25
                    Time: 12:53:04

-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels:| 5Q0-919-294.clb
   Part No SW: 5Q0 919 294 K    HW: 5Q0 919 294 A
   Component: PARKHILFE 8K  H03 0054  
   Revision: --------    Serial number: 39391529308797
   Coding: 0071051011
   Shop #: WSC 00028 028 00211
   ASAM Dataset: EV_EPHVA18AU3700000 002026
   ROD: EV_EPHVA18AU3700000_002_VW37.rod
   VCID: 43D345816B151823D21-8016

No fault code found.

-------------------------------------------------------------------------------
Address 13: Auto Dist. Reg (J428)       Labels:| 5Q0-907-572-V1.clb
   Part No SW: 5Q0 907 572 F    HW: 5Q0 907 572 F
   Component: ACC Bosch MQB H05 0400  
   Serial number: 06101503211649
   Coding: 001C1300FE0739
   Shop #: WSC 00028 028 00066
   ASAM Dataset: EV_ACCMRRBoschVW372 001016
   ROD: EV_ACCMRRBoschVW372_VW26.rod
   VCID: 3A2D38651CDF59EB817-806E

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 5Q0-959-655.clb
   Part No SW: 5Q0 959 655 AA    HW: 5Q0 959 655 AA
   Component: AirbagVW20    015 0388  
   Serial number: 003MLR176ZC5
   Coding: 98CCC000000000005C0000CF00C800000065
   Shop #: WSC 00028 028 00052
   ASAM Dataset: EV_AirbaVW20SMEVW37X 002130
   ROD: EV_AirbaVW20SMEVW37X_VW37.rod
   VCID: 7F5B0971477DBCC3F69-802A

   Left seat belt tensioner: 
   Subsystem 1 - Part No SW: 5G0 980 945 B    HW: 5G0 980 945 B
   Component: BeltPretRevFL  H36 0350 
   Serial number: 34169677B04111550521
   Coding: 333135

   Right seat belt tensioner: 
   Subsystem 2 - Part No SW: 5G0 980 946 B    HW: 5G0 980 946 B
   Component: BeltPretRevFR  H36 0350 
   Serial number: 34169676B04111580412
   Coding: 333135

   Crash sensor for side airbag: driver side: 
   Subsystem 3 - Part No SW: -----------    HW: 480 002 210 15
   Component: SideSensor_Df  001 0887 
   Serial number: 35767000000F1DBC3715
   Coding: 2D2D2D

   Front Passenger's Side Airbag Crash Sensor: 
   Subsystem 4 - Part No SW: -----------    HW: 480 002 210 15
   Component: SideSensor_Pf  001 0887 
   Serial number: 3586700000040CBC371-
   Coding: 2D2D2D

   Rear Side Airbag Crash Sensor (on driver's side): 
   Subsystem 5 - Part No SW: -----------    HW: 480 403 110 15
   Component: SideSensor_Dr  001 6149 
   Serial number: 3516502991D73C62329C
   Coding: 2D2D2D

   Passenger side rear thorax airbag crash sensor: 
   Subsystem 6 - Part No SW: -----------    HW: 480 403 110 15
   Component: SideSensor_Pr  001 6149 
   Serial number: 3526502C31D3F97422BJ
   Coding: 2D2D2D

   Crash sensor for front airbag: driver side: 
   Subsystem 7 - Part No SW: -----------    HW: 480 403 010 15
   Component: FrontSensor_D  001 6149 
   Serial number: 3556502BD1D73C63917Q
   Coding: 2D2D2D

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J524)       Labels:| 5Q0-953-549.clb
   Part No SW: 5Q0 953 521 P    HW: 5Q0 953 569 A
   Component: Lenks.Modul   075 0195  
   Revision: FF033033    Serial number: 20151109500111
   Coding: 0410
   Shop #: WSC 00028 028 00066
   ASAM Dataset: EV_SMLSVALEOMQB 001015
   ROD: EV_SMLSVALEOMQB.rod
   VCID: 3FDB497107FD7CC3B69-806A

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5G0-920-XXX-17.clb-SRI3
   Part No SW: 5G1 920 958 A    HW: 5G1 920 958 A
   Component: KOMBI         302 6420  
   Coding: 27AD10082F80260001882A011400000000000000
   Shop #: WSC 00028 028 00066
   ASAM Dataset: EV_DashBoardVDDMQBAB 009046
   ROD: EV_DashBoardVDDMQBAB_009_VW26.rod
   VCID: 2F3B1931D79D8C43269-807A

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:| 5Q0-907-530-V1.clb
   Part No SW: 5Q0 907 530 AJ    HW: 5Q0 907 530 M
   Component: GW MQB High   212 2246  
   Revision: --------    Serial number: 30101510802581
   Coding: 030100043F085900FB00027E1C0F00010001050000000000000000000000
   Shop #: WSC 00028 028 00066
   ASAM Dataset: EV_GatewConti 013020
   ROD: EV_GatewConti_013.rod
   VCID: 79AFE769595992F3C8D-802C

   Generator: 

   Multifunction steering wheel control module: 
   Subsystem 2 - Part No SW: 5G0 959 442 N    HW: 5G0 959 442 N  Labels: 3C8-959-537.CLB
   Component: E221__MFL-DC1  H11 0040 
   Serial number: 29150002051880045443
   Coding: 2DFFFF

   Battery Monitoring Control Module: 
   Subsystem 3 - Part No SW: 5Q0 915 181 G    HW: 5Q0 915 181 G
   Component: J367-BDMHella  H04 8050 
   Serial number: 7197308203          

No fault code found.

-------------------------------------------------------------------------------
Address 20: High Beam Assist. (J844)       Labels:| 8X0-857-511.clb
   Part No SW: 5G0 857 511 D    HW: 5G0 857 511 D
   Component: FLA           H05 0002  
   Revision: AA001001    
   Coding: 02028864727264565625393E01
   Shop #: WSC 00028 028 00066
   ASAM Dataset: EV_HighBeamAssisAU37X 001009
   ROD: EV_HighBeamAssisAU37X.rod
   VCID: 2B030D21E385F0630A1-807E

1 Fault Found:
4186894 - Internal Control Module Memory Check Sum Error 
          B2000 47 [009] - Watchdog/safety µC failure
          [Steuergerät: defektECU: defect]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 3
                    Fault Frequency: 1
                    Mileage: 68506 km
                    Date: 2019.09.18
                    Time: 16:27:03

-------------------------------------------------------------------------------
Address 22: AWD (J492)       Labels:* 0CQ-907-554.clb
   Part No SW: 0CQ 907 554 H    HW: 0CQ 525 130 
   Component: Haldex4Motion H52 7083  
   Serial number: HA1-00025.09.15
   Coding: 0001
   Shop #: WSC 00028 028 00066
   ASAM Dataset: EV_AllWheelContrHA1VW37X 004013
   ROD: EV_AllWheelContrHA1VW37X_004.rod
   VCID: 4ACD68A54C3FC96B117-801E

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:| 5QX-959-X93-42.clb
   Part No SW: 5Q4 959 593 E    HW: 5Q4 959 593 B
   Component: TSG FS        010 0031  
   Serial number: 0000173308326 
   Coding: 003F0220D001028000001000
   Shop #: WSC 00028 028 00066
   ASAM Dataset: EV_DCUDriveSideEWMAXCONT 006001
   ROD: EV_DCUDriveSideEWMAXCONT.rod
   VCID: 47CB51915F2D34030E9-8012

   Rear Driver Side Door Control Module: 
   Subsystem 1 - Part No SW: 5Q4 959 812 D    HW: 5Q4 959 812 D  Labels: 5QX-959-81X-V1.CLB
   Component: Fond FHSG DRV  007 0002 
   Serial number: 00000000000002503944
   Coding: 0D0000

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500)       Labels:| 5Q0-909-144.clb
   Part No SW: 3Q0 909 144 J    HW: 3Q0 909 144 H
   Component: EPS_MQB_ZFLS  505 5063  
   Coding: 8103
   Shop #: WSC 00028 028 00066
   ASAM Dataset: EV_SteerAssisMQB 012140
   ROD: EV_SteerAssisMQB_012_VW37.rod
   VCID: 392F276919D952F388D-806C

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:| 5QX-959-X92-52.clb
   Part No SW: 5Q4 959 592 E    HW: 5Q4 959 592 B
   Component: TSG BFS       010 0031  
   Serial number: 0000173181851 
   Coding: 003F0020DE01028000801000
   Shop #: WSC 00028 028 00066
   ASAM Dataset: EV_DCUPasseSideEWMAXCONT 006001
   ROD: EV_DCUPasseSideEWMAXCONT.rod
   VCID: 46D55C9558272D0BF5F-8012

   Rear Passenger Door Control Module: 
   Subsystem 1 - Part No SW: 5Q4 959 811 D    HW: 5Q4 959 811 D  Labels: 5QX-959-81X-V1.CLB
   Component: Fond FHSG PSG  007 0002 
   Serial number: 00000000000002473599
   Coding: 050000

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range (J745)       Labels:| 7P6-907-357.clb
   Part No SW: 7P6 907 357 D    HW: 7P6 907 357 A
   Component: AFS-ECU       H07 0090  
   Revision: --------    Serial number: --------------
   Coding: 06AE01000B000200
   Shop #: WSC 00028 028 00066
   ASAM Dataset: EV_HeadlRegulVWAFSMQB 001120
   ROD: EV_HeadlRegulVWAFSMQB.rod
   VCID: 40D94A8D7A03033BCF3-8014

   Left Headlamp Power Output Stage: 
   Subsystem 1 - Part No SW: 3D0 941 329 E    HW: 3D0 941 329 E  Labels: 3D0-941-329.CLB
   Component: LeiMo links  H01 0002 
   Coding: 2E0000

   Right Headlamp Power Output Stage: 
   Subsystem 2 - Part No SW: 3D0 941 329 E    HW: 3D0 941 329 E  Labels: 3D0-941-329.CLB
   Component: LeiMo rechts  H01 0002 
   Coding: 2E0000

1 Fault Found:
5276435 - Stationary Cornering Lamp Left 
          C1083 13 [009] - Open Circuit
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 46
                    Mileage: 90424 km
                    Date: 2021.05.22
                    Time: 17:19:11

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:| 5G0-035-MIB-STD2.clb
   Part No SW: 3Q0 035 842 A    HW: 3Q0 035 842 A
   Component: MU-S-D-ER     H24 0245  
   Serial number: VWZAZ2R0552748
   Coding: 02730200FF00000051111101008808001F0207C60120010003
   Shop #: WSC 00028 028 00066
   ASAM Dataset: EV_MUStd4CTSAT 001022
   ROD: EV_MUStd4CTSAT_VW26.rod
   VCID: 2B030D21E385F0630A1-807E

   Display and control head 1 for information electronics: 
   Subsystem 1 - Part No SW: 3G0 919 605 B    HW: 3G0 919 605 B
   Component: ABT_Std-2  H43 4060 
   Serial number: VWZ6Z9R3061508      

3 Faults Found:
1555 - Check Software Version Management 
          B201A 00 [009] - -
          [Check software version management]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 45
                    Mileage: 90424 km
                    Date: 2021.05.22
                    Time: 16:48:42

                    Voltage terminal 30: 12.0 V
                    Status_Software_Version_Management-module_name: 

0512 - Rear Right Bass Speaker 
          B1067 13 [009] - Open Circuit
          [Tieftonlautsprecher Kanal 1: Unterbrechung (DC-Diagnose)]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 45
                    Mileage: 90424 km
                    Date: 2021.05.22
                    Time: 16:48:43

                    Voltage terminal 30: 12.0 V

0528 - Rear Left Treble Speaker 
          B1066 13 [009] - Open Circuit
          [Hochtonlautsprecher Kanal 4: Unterbrechung (AC-Diagnose)]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 53
                    Mileage: 90662 km
                    Date: 2021.05.25
                    Time: 12:18:10

                    Voltage terminal 30: 12.1 V

-------------------------------------------------------------------------------
Address A9: Struct. Borne Sound (J869)       Labels: 4H0-907-159.clb
   Part No SW: 5G0 907 159 D    HW: 4H0 907 159 A
   Component: SAS-GEN 2     H07 0001  
   Serial number: 150909200963
   ASAM Dataset: EV_SoundActuaGen2AU64X 003010
   ROD: EV_SoundActuaGen2AU64X.rod
   VCID: 2F3B1931D79D8C43269-807A

No fault code found.

End----------(Elapsed Time: 01:48, VBatt start/end: 12.0V/12.1V)-----------

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

Address 09: DTCs cleared
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

Address 09: DTCs cleared

 

 

 

  

 

 

 

 

 

 

So with a bit of consultancy with @langers2k and someone on another forum, I got to the bottom of this. We all agreed it seemed mechanical and it was.

 

I realised even the old module was operating entirely correctly out of the door with the pull cables disconnected.  Connecting them, I then noticed with the internal handle pull cable connected the release lever on the module was partly pulled with just the cable connected.

 

Turns out the cable had been pulled and the sheath pulled out of the end fitting and this caused the wire length to shorten and be pulling on the lever even when not being operated.  I have tried to squish the sheath back in the lengthen the cable length and it is currently working!! 

 

It was confusing the old module wasn't showing the implausible signal error like the new one did!  And the old one didn't click locked and unlocked where as the replacement did. But either work now.  I'll be selling a new rear door lock or two now!

 

Someone had been in the door trying to fix this probably several times as the big plastic internal access cover plate is missing!