2016 VW GTI (MK7) Sunroof Switch and Control Faults

   #1  

adobeeditor

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Hi there. I have a 2016 VW GTI with sunroof issues, although they seem to be different than what I've seen online in other posts. The past two years I've had problems similar to what I've seen elsewhere that the auto-close controls get disabled. Usually I can correct the issue with the reset steps similar to what are posted here: https://golfmk7.com/forums/index.php?threads/sunroof-control-issue.327722/post-6782484

However, this time it seems like the switch is not responding to some of the controls. For example, I can tilt the sunroof but it won't open and close if I press the switch forward and backward. So I consulted my neighbor and he was able to run his VCDS on my car.

Luckily it seems like there are faults that it found with the sunroof, but I have been unable to identify how to correct them. I was nervous to do any kind of global reset because I've come across other posts where other problems came up after doing that.

Any suggestions? Below are the two faults that come up for the sunroof module:

721416 - Switch for Sunroof
B13C4 29 [008] - Signal Implausible
Intermittent - Confirmed - Tested Since Memory Clear

722437 - Control Module for Power Sunroof
B13C6 54 [009] - Missing Calibration / Basic Setting
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 2
Reset counter: 171
Mileage: 75631 km
Date: 2020.07.01
Time: 18:08:59

Thanks in advance!
 
   #2  

PetrolDave

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Please ask your neighbor to copy the VCDS Auto-Scan of your car onto a USB stick (it will have been auto-saved into C:\Ross-Tech\VCDS\Scans) so you can post the complete unedited Scan here (how your car is configured is important) - see my sig for a link to a How-To
 
   #3  

adobeeditor

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Thanks @PetrolDave! See below.

Code:
Thursday,02,July,2020,13:07:42:45253
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 20.4.1.0 (x64)  HEX-V2 CB: 0.4508.4
Data version: 20200331 DS317.0
www.Ross-Tech.com


VIN: 3VW4T7AU7GM070263   License Plate: 
Mileage: 75631km-46994mi   Repair Order: 



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


Chassis Type: AU-VW37 (5Q0)
Scan: 01 02 03 05 08 09 15 16 17 19 2B 42 44 47 52 55 5F 75 A9

VIN: 3VW4T7AU7GM070263   Mileage: 75631km-46994miles

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: Malfunction 0010
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
2B-Steer. Col. Lock -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
47-Sound System -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
55-Headlight Range -- Status: OK 0000
5F-Information Electr. -- Status: Malfunction 0010
75-Telematics -- Status: OK 0000
A9-Struct. Borne Sound -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CXCA)       Labels:. 06K-907-425-V1.clb
   Part No SW: 5G0 906 259 D    HW: 06K 907 425 B
   Component: 2.0l R4 TFSI  H13 0002  
   Revision: --H13---    
   Coding: 091D00124424002F1000
   Shop #: WSC 00066 790 00149
   ASAM Dataset: EV_ECM20TFS0205G0906259D 001003
   ROD: EV_ECM20TFS0205G0906259D.rod
   VCID: 2F381AB147964023FA1-807A

1 Fault Found:
21406 - EVAP Emission Control Sys 
          P0441 00 [096] - Incorrect Flow
          Intermittent - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 74999 km
                    Date: 2020.06.04
                    Time: 20:17:17

                    Engine speed: 1574.25 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 51 km/h
                    Coolant temperature: 98 ∞C
                    Intake air temperature: 46 ∞C
                    Ambient air pressure: 1000 mbar
                    Voltage terminal 30: 13.769 V
                    Unlearning counter according OBD: 15
                    Engine: operating status: PUC
                    STATE_LS_SAE[1]: OL_INTR
                    T_AST_SAE: 164 s
                    MAP_MES_SAE: 24 kPa
                    Lambda probe voltage: bank 1: probe 1 (broadband probe): 3.145 V
                    FAC_TPS_1_SAE: 12.890625 %
                    FUP_H_SAE: 9690.0 kPa

Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 02: Auto Trans (J743)       Labels: 0D9-927-770.clb
   Part No SW: 0D9 300 041 C    HW: 02E 927 770 AQ
   Component: DQ250-6F MQB  H54 4935  
   Revision: 06354004    Serial number: TFK01605181687
   Coding: 0014
   Shop #: WSC 00066 790 00149
   ASAM Dataset: EV_TCMDQ250021 001001
   ROD: EV_TCMDQ250021.rod
   VCID: 186AC16DD218A79B8BB-804C

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels: 5Q0-907-379-ESP-V1.clb
   Part No SW: 3Q0 907 379 T    HW: 3Q0 907 379 C
   Component: ESC           H32 0393  
   Revision: 00000000    Serial number: 51376000000489
   Coding: 01FA6BA13427096C0079020681C62980D62C9000408194B400430050C009
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_Brake1UDSContiMK100ESP 034033
   ROD: EV_Brake1UDSContiMK100ESP_034_VW37.rod
   VCID: 4BC06E21D34E1C03F69-801E

1 Fault Found:
16401 - Tire Pressure Warning 
          C102D 00 [008] - -
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 2
                    Reset counter: 178
                    Mileage: 73856 km
                    Date: 2020.03.27
                    Time: 08:35:53


-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J518)       Labels:| 5Q0-959-435.clb
   Part No SW: 5Q0 959 435 A    HW: 5Q0 959 435 
   Component: VWKESSYMQB    021 0604  
   Revision: 00021000    Serial number: 0398945262
   Coding: 030C0C
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_KessyHellaMQBAB 002011
   ROD: EV_KessyHellaMQBAB_002.rod
   VCID: 3A2E3BE58CD4958B5DF-806E

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J301)       Labels:| 5G0-907-426.clb
   Part No SW: 5GM 907 426 A    HW: 5GM 907 426 A
   Component: AC Manuell    H02 1001  
   Revision: 00001K01    
   Coding: 00020004200100000000000000000002
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_ACManueBHBVW37X 003019
   ROD: EV_ACManueBHBVW37X_003.rod
   VCID: 46D65F15C82CE16B297-8012

   Fresh Air Blower Front: 

   Geber f¸r K‰ltemitteldruck/K‰ltemitteltemperatur: 

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:| 5Q0-937-08X-MV1.clb
   Part No SW: 5Q0 937 087 AA    HW: 5Q0 937 087 AA
   Component: BCM PQ37BOSCH 028 0162  
   Revision: --------    Serial number: 8658090616002L
   Coding: 00111A464041A26969E44000001407201800000000000000000000000000
   Shop #: WSC 00066 790 00291
   ASAM Dataset: EV_BodyContrModul1UDSBosc 015002
   ROD: EV_BCMBOSCH_015.rod
   VCID: 7AAEFBE5CC54558B1DF-802E

   Control Unit For Wiper Motor: 
   Subsystem 1 - Part No SW: 5GM 955 119     HW: 5GM 955 119   Labels: 5QX-955-119-V1.CLB
   Component: WWS    150809  043 0581 
   Serial number:         151231053711
   Coding: 0E4DDD

   Rain Light Recognition Sensor: 
   Subsystem 2 - Part No SW: 5Q0 955 559 A    HW: 5Q0 955 559 A  Labels: 5Q0-955-547.CLB
   Component: RLS  037 0059 
   Serial number: S3Y16M04D05H22M25S06
   Coding: 90A8DD

   Sun Roof: 
   Subsystem 3 - Part No SW: 5GD 959 591     HW: 5GD 959 591 
   Component: J245 PS60.036  H06 0150 
   Serial number: 03691611140201161434
   Coding: 181803

2 Faults Found:
721416 - Switch for Sunroof 
          B13C4 29 [008] - Signal Implausible
          Intermittent - Confirmed - Tested Since Memory Clear

722437 - Control Module for Power Sunroof 
          B13C6 54 [009] - Missing Calibration / Basic Setting
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 2
                    Reset counter: 171
                    Mileage: 75631 km
                    Date: 2020.07.01
                    Time: 18:08:59


-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 5Q0-959-655.clb
   Part No SW: 5Q0 959 655 J    HW: 5Q0 959 655 J
   Component: AirbagVW20    010 0830  
   Serial number: 003GCR04NU0T
   Coding: 8CCCFC00000000005000001AC24800000065
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_AirbaVW20SMEVW37X 002144
   ROD: EV_AirbaVW20SMEVW37X_VW37.rod
   VCID: 47C85211CF26F863D21-8012

   Occupant Detection: 
   Subsystem 1 - Part No SW: 4M0 959 339 B    HW: 4M0 959 339 B
   Component: BF-Gewichtss.  H12 0021 
   Serial number: IBH00000000000557SRW
   Coding: 303131

   Side Sensor Driver Front: 
   Subsystem 2 - Part No SW: -----------    HW: 480 000 205 16
   Component: SideSensor_Df  001 0887 
   Serial number: 35700000000B00D07A1E
   Coding: 2D2D2D

   Side Sensor Passenger Front: 
   Subsystem 3 - Part No SW: -----------    HW: 480 000 205 16
   Component: SideSensor_Pf  001 0887 
   Serial number: 3580000000078AE07A1U
   Coding: 2D2D2D

   Side Sensor Driver Rear: 
   Subsystem 4 - Part No SW: -----------    HW: 480 400 205 16
   Component: SideSensor_Dr  001 6149 
   Serial number: 3510002A91FA3421616-
   Coding: 2D2D2D

   Side Sensor Passenger Rear: 
   Subsystem 5 - Part No SW: -----------    HW: 480 400 205 16
   Component: SideSensor_Pr  001 6149 
   Serial number: 3520002B9205728192D 
   Coding: 2D2D2D

   Front Sensor Driver: 
   Subsystem 6 - Part No SW: -----------    HW: 480 400 404 16
   Component: FrontSensor_D  001 6149 
   Serial number: 3550002C920414E1407U
   Coding: 2D2D2D

   Front Sensor Passenger: 
   Subsystem 7 - Part No SW: -----------    HW: 480 400 404 16
   Component: FrontSensor_P  001 6149 
   Serial number: 3560002C920414E5F2DB
   Coding: 2D2D2D

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J524)       Labels:| 5Q0-953-549.clb
   Part No SW: 5Q0 953 521 AT    HW: 5Q0 953 569 A
   Component: Lenks.Modul   075 0195  
   Revision: FF033033    Serial number: 20160411500259
   Coding: 0410
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_SMLSVALEOMQB 001015
   ROD: EV_SMLSVALEOMQB.rod
   VCID: 0452851DBE90137B773-8050

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5G0-920-XXX-17.clb-SRI3
   Part No SW: 5G1 920 856 A    HW: 5G1 920 856 A
   Component: KOMBI         342 6420  
   Coding: 0BAD091AA980CF0502086A001000000000000000
   Shop #: WSC 00066 790 00149
   ASAM Dataset: EV_DashBoardVDDMQBAB 009046
   ROD: EV_DashBoardVDDMQBAB_009_VW37.rod
   VCID: 2C020DBD76803B3BDF3-8078

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: 28041610801447
   Coding: 0101000830085900FB00002A1C0F00000001050000000000000000000000
   Shop #: WSC 00066 790 00199
   ASAM Dataset: EV_GatewConti 013020
   ROD: EV_GatewConti_013.rod
   VCID: 79ACE4E9C9525E93145-802C

   Alternator: 

   Multi Function Steering Wheel Control Module: 
   Subsystem 2 - Part No SW: 5G0 959 442 Q    HW: 5G0 959 442 Q  Labels: 3C8-959-537.CLB
   Component: E221__MFL-DC1  H11 0103 
   Serial number: 29160000517410106123
   Coding: 31FFFF

No fault code found.

-------------------------------------------------------------------------------
Address 2B: Steer. Col. Lock (J764)       Labels:* 5Q0-905-861.clb
   Part No SW: 5Q0 905 861 A    HW: 5Q0 905 861 A
   Component: ELV-MQBA      H01 0120  
   Revision: 00000000    Serial number: 16000077152005
   Coding: 5D00000000000000
   Shop #: WSC 00066 790 00199
   ASAM Dataset: EV_ELVMarquMQB 004111
   ROD: EV_ELVMarquMQB.rod
   VCID: 343215DDAEB063FB873-8060

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:| 5QX-959-X93-42.clb
   Part No SW: 5Q0 959 593 E    HW: 5Q0 959 593 B
   Component: TSG FS        020 0041  
   Serial number: 20051606050AAR
   Coding: 003E13200000020000000000
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_DCUDriveSideEWMAXKLO 006003
   ROD: EV_DCUDriveSideEWMAXCONT.rod
   VCID: 43D04601FB1ED4430E9-8016

   Drivers Door Rear 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 DRV  007 0002 
   Serial number: 00000000000012816955
   Coding: 011000

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: 8102
   Shop #: WSC 00066 790 00149
   ASAM Dataset: EV_SteerAssisMQB 012140
   ROD: EV_SteerAssisMQB_012_VW37.rod
   VCID: 392C24E989D29E93545-806C

No fault code found.

-------------------------------------------------------------------------------
Address 47: Sound System (J525)       Labels:| 5Q0-035-456.clb
   Part No SW: 5Q0 035 456     HW: 5Q0 035 456 
   Component: MIB2_lite_amp H20 0150  
   Revision: 00000001    Serial number: VWZ8Z1GBA01P6MI
   Coding: 2200000000AAAAAA000000000000
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_AMPMst12C1Gen2ALPI 001003
   ROD: EV_AMPMst12C1Gen2ALPI.rod
   VCID: 6D84C0B98D1AF23388D-8038

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:| 5QX-959-X92-52.clb
   Part No SW: 5Q0 959 592 E    HW: 5Q0 959 592 B
   Component: TSG BFS       020 0041  
   Serial number: 0906160605027M
   Coding: 003E13200000020000000000
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_DCUPasseSideEWMAXKLO 006003
   ROD: EV_DCUPasseSideEWMAXCONT.rod
   VCID: 42DE4305E404DD4B05F-8016

   Passengers Rear 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 PSG  007 0002 
   Serial number: 00000000000012739643
   Coding: 091000

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: 021A01010B000400
   Shop #: WSC 01383 790 50316
   ASAM Dataset: EV_HeadlRegulVWAFSMQB 001120
   ROD: EV_HeadlRegulVWAFSMQB.rod
   VCID: 40DA490DEA08CF5B13B-8014

   Left Headlamp Power Output Stage: 
   Subsystem 1 - Part No SW: 5N0 941 329     HW: 5N0 941 329   Labels: 3D0-941-329.CLB
   Component: LeiMo links  H01 0004 
   Coding: 2E0000

   Right Headlamp Power Output Stage: 
   Subsystem 2 - Part No SW: 5N0 941 329     HW: 5N0 941 329   Labels: 3D0-941-329.CLB
   Component: LeiMo rechts  H01 0004 
   Coding: 2E0000

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:| 5G0-035-MIB-STD2.clb
   Part No SW: 3Q0 035 844     HW: 3Q0 035 844 
   Component: MU-S-S-US     620 0613  
   Serial number:               
   Coding: 027300000000000051220002001808001F0203F40120010002
   Shop #: WSC 00066 790 00199
   ASAM Dataset: EV_MUStd4CDELP 001001
   ROD: EV_MUStd4CDELP_VW37.rod
   VCID: 6C82CDBDB600FB3B9F3-8038

   Operating And Display Unit 1: 
   Subsystem 1 - Part No SW: 3G0 919 605 H    HW: 3G0 919 605 H
   Component: ABT_Std-2  H53 1031 
   Serial number: VWZ8Z9SJW00KVU      

1 Fault Found:
0020 - Tuner for Satellite Radio 
          B11CF 53 [009] - Deactivated
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 4
                    Fault Frequency: 1
                    Reset counter: 169
                    Mileage: 51713 km
                    Date: 2019.02.22
                    Time: 13:49:09

                    Voltage terminal 30: 11.9 V
                    SDARS_tuner_status_2-Satellite radio antenna status: Electrical OK
                    SDARS_tuner_status_2-Channel selection for satellite radio: 0
                    SDARS_tuner_status_2-Audio Signal: Available
                    SDARS_tuner_status_2-Antenna current: 130 mA
                    SDARS_tuner_status_2-Reception quality: optimum_signal
                    SDARS_tuner_status_2-Satellite radio tuner: pre-activation status: 05
                    SDARS_tuner_status_2-Satellite radio tuner: pre-activation value: 05


-------------------------------------------------------------------------------
Address 75: Telematics (J949)       Labels:| 5QE-035-285.clb
   Part No SW: 5QE 035 285 A    HW: 5QE 035 285 A
   Component: OCULowMQBUS   007 0568  
   Coding: 02730002C2823A017F1E06000000
   Shop #: WSC 00066 790 00199
   ASAM Dataset: EV_OCULowMQB 001006
   ROD: EV_OCULowMQB.rod
   VCID: 43D04601FB1ED4430E9-8016

No fault code found.

-------------------------------------------------------------------------------
Address A9: Struct. Borne Sound (J869)       Labels: 4H0-907-159.clb
   Part No SW: 5G0 907 159     HW: 4H0 907 159 A
   Component: SAS-GEN 2     H06 0014  
   Serial number: 160408202217
   ASAM Dataset: EV_SoundActuaGen2AU64X 003010
   ROD: EV_SoundActuaGen2AU64X.rod
   VCID: 6B80CEA1B30EFC03969-803E

No fault code found.

End----------(Elapsed Time: 01:29, VBatt start/end: 13.5V/13.6V)-----------
 
   #4  

Uwe

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Looks like a problem with the switch itself, or possibly the wiring to it.

-Uwe-
 
   #5  

adobeeditor

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Okay thanks @Uwe! Would this issue be something I should just take into the dealer and get their estimate? Not knowing how the fault codes work, my concern originally was that they could potentially attempt to replace more than necessary, and I'd end up shelling out more cash.
 
   #6  

Uwe

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Hard to say. Depends on the dealer.

Personally, I would spend $35 to pull a set of wiring diagrams for this exact car and then see if I could determine what's wrong using a multimeter.

-Uwe-
 
   #8  

DV52

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adobeeditor: Most certainly follow Uwe's advice (about the WD) - but if my experience with a similar problem on an early model mk7 is any help from the WD will be limited - alas! The good aspect of the WD will be that it will identify the destinations on the 5 x pin connector from the switch assembly - back to the sunroof module. This is great for continuity testing of the loom wires and the interposing connector pins !

The problem that I had was understanding how the 5 x pin connector on the actual switch operated. Alas, the WD wasn't instructive in explaining the internal arrangement within the switch housing. In the end, after I'd satisfied myself that the loom wiring was OK - I just had to take a position and buy a replacement switch. I'm not sure if the WD for your particular mk7 will be similarly limiting - but here's a very much simplified wiring arrangement for my case:

9xVSWno.png


I did this project some time ago and I'm not sure whether I dismantled the old switch to confirm the internal wiring; in any event, I can't recall my finding if I did, so such considerations are academic for your project (sorry)

However, if you look at my diagram, it is possible to hypothesize- perhaps?

Clearly pin#5 is the background LED lighting for the switch and although not specifically designated, I guess that its reasonable to conclude the cathode end of the LED is the brown wire on pin#4 (brown is often the color of earth wires on mk7 WD)

So that leaves 3 x pins to explain: 3 x pin switches are invariably single-throw, double-pole meaning that a single "input" from the control module can be switched to one of two other pins on the module. In this application, I guess that the "input" pin instructs the module whether the sunroof is open, or closed at the end of the travel position

A way of testing the integrity of this switch (and of determining which pin does what) is to separately measure the resistance between pins 1&2, and 1&3, and 3&2 with the switch in one position and again with the switch in the alternative position.This gives 6 x results. For each switch position, and if the switch is OK, you should get a reading of zero ohms on only one of the pin-pair tests (ALL remaining results should be infinity ohms). And, for the pin-pairs with these 2 x zero ohm results, the common pin-number in both will be the "input" terminal for the double throw mechanism.

hope this makes sense - and I apologize if you know this stuff already!!

Don
 
Last edited:
   #9  

adobeeditor

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Thanks so much @DV52! I haven't been able to look into this further yet this week but hoping to next week.
 
   #10  

cilitkas

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Got the same issue, nothing works, same 2 faults appear, replacing the switch didnt helped, ODIS fails during calibration...
 
   #11  

DasBroken

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Did you ever figure out what the issue is? I believe my new to me mk7 gti has the same problem. Have not been able to scan it yet but the buttons are unresponsive except for the tilt function. The sunroof keeps opening and closing on its own I can hear the motor clicking while its shut.
 
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