7P6 Bluetooth Module has stopped working

[KieranR]

Hi. Hoping someone here can help.  My bluetooth module has stopped working.  I was on a phone call and it just died.  Managed to reconnect my phone to it but then the same thing happened again and now it doesn't even show up in the list of bluetooth devices when I search for it.

I scanned the car and the results are below.  Is there any fix for this or is the module gone bad?

Chassis Type: 1K (1K0)
Scan: 01 02 03 08 09 15 16 17 19 25 42 44 46 52 56 77

01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: Malfunction 0010
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: Malfunction 0010
77-Telephone -- Status: Sporadic communication error 1000
 
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 06F-907-115-AXX.lbl
   Part No SW: 1K0 907 115 Q    HW: 8P0 907 115 B
   Component: 2.0l R4/4V TFSI     0020 
   Revision: 5BH16---    Serial number: VWX7Z0GN3NF881
   Coding: 040300031C070060
   Shop #: WSC 01279 785 00200
   VCID: 3467FA5B57CEB4BE40B-8061

No fault code found.
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 02E-300-0xx.lbl
   Part No SW: 02E 300 044 J    HW: 02E 927 770 AE
   Component: GSG DSG         081 1407 
   Revision: 04608010    Serial number: 00000709201237
   Coding: 0000020
   Shop #: WSC 01279 785 00200
   VCID: 1C3732FBDF5E1CFE68B-8049

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 1K0-907-379-MK60-F.lbl
   Part No SW: 1K0 907 379 AC    HW: 1K0 907 379 AC
   Component: ESP FRONT MK60      0101 
   Revision: 00H11001   
   Coding: 0004738
   Shop #: WSC 01279 785 00200
   VCID: 73E539471240F386991-8026

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 1K0-820-047.lbl
   Part No SW: 1K0 820 047 HB    HW: 1K0 820 047 HB
   Component: Climatic PQ35   141 1010 
   Revision: 00141028    Serial number: 00000000000000
   Shop #: WSC 00000 000 00000
   VCID: 6BD521274A702B46511-803E

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 3C0-937-049-30-H.lbl
   Part No SW: 3C0 937 049 AJ    HW: 3C0 937 049 AJ
   Component: Bordnetz-SG     H54 2202 
   Revision: 00H54000    Serial number: 00000007786123
   Coding: E58D0F2700041500471400001400000080097F075C000108000000000000
   Shop #: WSC 01287 785 00200
   VCID: 71E9334F685CC1966BD-8024

   Subsystem 1 - Part No: 1K2 955 119 E  Labels: 1KX-955-119.CLB
   Component: Wischer 151107 021  0501 
   Coding: 00038805
   Shop #: WSC 01287 

   Subsystem 2 - Part No: 1K0 955 559 AF  Labels: 1K0-955-559-AF.CLB
   Component: RLS     211107 046  0204 
   Coding: 00208933
   Shop #: WSC 01287 

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 1K0-909-605.lbl
   Part No SW: 1K0 909 605 T    HW: 1K0 909 605 T
   Component: 38 AIRBAG VW8   020 2300 
   Revision: 05020000    Serial number: 0038PD1LGWZP 
   Coding: 0013112
   Shop #: WSC 01269 785 00200
   VCID: 3D71DF7F648475F6BF5-8068

   Subsystem 1 - Serial number: 6332MSME28021246$

   Subsystem 2 - Serial number: 6342MSME28022C536

   Subsystem 3 - Serial number: 6352QSME48523D61J

   Subsystem 4 - Serial number: 6362QSME490C472FV

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 1K0-953-549-MY8.lbl
   Part No SW: 1K0 953 549 BG    HW: 1K0 953 549 BG
   Component: J0527           051 0100 
   Coding: 0012112
   Shop #: WSC 01279 785 00200
   VCID: 78FF0E6B0B2690DEAC3-802D

   Subsystem 1 - Part No: XXXXXXXXXXX
   Component: E0221           002 0010

1 Fault Found:
00888 - Wiper Switch for Intermittent Operation (E22)
            014 - Defective - Intermittent

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 1K0-920-xxx-17.lbl
   Part No SW: 1K6 920 864     HW: 1K6 920 864
   Component: KOMBIINSTRUMENT VDD 1214 
   Revision: V0002000    Serial number: VWX7Z0GN3NF881
   Coding: 0003103
   Shop #: WSC 11959 000 1048576
   VCID: EFEDB537FE685766FD9-80BA

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 1K0-907-530-V3.clb
   Part No SW: 1K0 907 530 L    HW: 1K0 907 951
   Component: J533  Gateway   H07 0052 
   Revision:   H07 01    Serial number: 051107F2000617
   Coding: ED801F060006020001
   Shop #: WSC 01279 785 00200
   VCID: 306FF64BA3D6889E243-8065

1 Fault Found:
01303 - Telephone Transceiver (R36)
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00110100
                    Fault Priority: 2
                    Fault Frequency: 5
                    Reset counter: 211
                    Mileage: 106415 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 18:31:17


-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 1K0-920-xxx-25.clb
   Part No SW: 1K6 920 864     HW: 1K6 920 864
   Component: IMMO            VDD 1214 
   Revision: V0002000    Serial number: VWX7Z0GN3NF881
   Shop #: WSC 00000 000 00000
   VCID: EFEDB537FE685766FD9-80BA

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver        Labels: 1K0-959-701-MIN3.lbl
   Part No SW: 1K0 959 701 M    HW: 1K0 959 701 M
   Component: Tuer-SG         006 1208 
   Coding: 0000564
   Shop #: WSC 01279 785 00200
   VCID: 387FCE6B4BA650DE6C3-806D

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 1Kx-909-14x-44.clb
   Part No: 1K2 909 144 M
   Component: EPS_ZFLS Kl.074 H08 1901 
   Shop #: WSC 00000 028 00001
   VCID: 3663C05341B2A6AE7EF-8063

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 1K0-959-433-MIN.clb
   Part No: 1K0 959 433 AJ
   Component:    KSG              0401 
   Coding: 18C802087F2D840DC85A069010CC
   Shop #: WSC 01287 785 00200
   VCID: 78FF0E6B0B2690DEAC3-802D

   Subsystem 1 - Part No: 1K0 951 605 D
   Component: LIN BACKUP HORN H07 9001

   Subsystem 2 - Component:       NGS n.mounted     

   Subsystem 3 - Component:      IRUE n.mounted     

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass.        Labels: 1K0-959-702-MIN3.lbl
   Part No SW: 1K0 959 702 M    HW: 1K0 959 702 M
   Component: Tuer-SG         006 1208 
   Coding: 0000564
   Shop #: WSC 01279 785 00200
   VCID: 3979CB6F70AC49D693D-806C

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (J0503)       Labels: 5M0-035-1xx-56.clb
   Part No SW: 5K0 035 190 B    HW: 5K0 035 190 B
   Component: Radio RCD510  005 0236 
   Revision: 00000001    Serial number: VWZ1Z3P0382810
   Coding: 01000401040005
   Shop #: WSC 00020 790 12345
   VCID: 24470A1B272E243ED0B-8071

1 Fault Found:
01303 - Telephone Transceiver (R36)
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 6
                    Fault Frequency: 2
                    Reset counter: 211
                    Mileage: 106422 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 19:56:22


-------------------------------------------------------------------------------
Address 77: Telephone (J412)       Labels: 7P6-035-730.clb
   Part No SW: 7P6 035 730 M    HW: 7P6 035 730 M
   Component: TELEFON       H16 4217 
   Revision: 1B001001    Serial number: 00007666741892
   Coding: 0A10010000010110
   Shop #: WSC 02737 790 50316
   ASAM Dataset: EV_UHVNA 002720
   ROD: EV_UHVNA.rod
   VCID: 3C77D27BB79E7CFE88B-8069

No fault code found.

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

[KieranR]

Quick bump. Can anyone she'd any light on this?

[golfmk5]

You say the module cannot be found when you search for it with your phone, but is it still recognized by the head unit? Have you tried resetting it to factory defaults?

[KieranR]

You say the module cannot be found when you search for it with your phone, but is it still recognized by the head unit? Have you tried resetting it to factory defaults?

When I go to the phone menu it Says something like "Mobile Telephone Not Inserted or Connected".  Also when I go to the Media section the BT Audio feature is greyed out.

I tried disconnecting the battery but It didn't do anything. When I first got the problem I did the factory reset.  Will try again.

If I don't plug in the module at all I cannot access the phone screen or the media section so it does seem to be doing something.  Definitely seems like there is a fault with it though and I only got it at Christmas. 

Do these modules fail often I wonder? Reluctant to buy another one if this is going to happen again

[golfmk5]

Sounds like your head unit is aware of the bluetooth module then. Do you have a 'Telephone' menu on the MFD? I have a 3C8 module (9wZ, similar to 9w7 as you have) and I initialize the pairing from the MFD, not from the phone. Are you able to do so? I also have a 'Visibility' option, do you have that so you can check that it is enabled? Don't know why it would have been disabled in the first place, but anyway...

My last suggestion is to physically inspect the wiring harness at both ends to look for damaged or bent pins, do a continuity check etc.

[RetroRaz]

check all wiring and unplug and plug back in the bluetooth unit cables

[KieranR]

Sounds like your head unit is aware of the bluetooth module then. Do you have a 'Telephone' menu on the MFD? I have a 3C8 module (9wZ, similar to 9w7 as you have) and I initialize the pairing from the MFD, not from the phone. Are you able to do so? I also have a 'Visibility' option, do you have that so you can check that it is enabled? Don't know why it would have been disabled in the first place, but anyway...

My last suggestion is to physically inspect the wiring harness at both ends to look for damaged or bent pins, do a continuity check etc.

Dont have the Telephone menu in the MFD as I don't have the highline clocks.  I think the next option is to inspect the wiring and maybe try pairing with a different phone.  I'll update if I have any success