How to replace your alarm horn

[Franciswat]

Well I am not an electrician and my knowledge about this stuffs is limited but I supposed since batteries are connected in series they should charge/discharge together.
I checked them both when they arrived but maybe a battery was defective or maybe I damaged It inadvertently when I soldered contacts the pbc!

Anyway new battery is coming and I'll give siren an other chance to work!

Stay tuned!

[Franciswat]

Hi guys, last update for this story.
Unfortunatelly I have to comunicate that even If both batteries had been replaced with new one the error on VCDS did not disappear.
For this reason I will replace the whole horn unit soon. Anyway the horn continues to works correctly as far as I tested it.

[iichel]

Too bad it didn't work out as you planned, but thanks for trying anyway!

[RUM4MO]

It was worth trying though - just one thing maybe a stupid thought, will these new batteries not need time to charge up before the fault can be erased?
Sorry if you have given the batteries time to recharge - did you check that there is a supply getting through to this box to keep these back up batteries charged up, or maybe the built in charger has been trashed by the previous batteries failing, or a protective fuse?

[Franciswat]

Hello guys, sorry for late reply but I forgot to subscribe to the topic.

Thanks iichel I just thought replacing the battery could be a cheaper solution than replacing the whole unit.
Never give up until you have tried all the ways you can!

will these new batteries not need time to charge up before the fault can be erased?

Yes I thought that but after a long drive and some weeks batteries should be fully charged but error remains.

did you check that there is a supply getting through to this box to keep these back up batteries charged up, or maybe the built in charger has been trashed by the previous batteries failing, or a protective fuse?

Since batteries are good I may only suppose there is something wrong in the PCB but I should ask an electronic technician because my knowledge about electric components is very limited.

[RUM4MO]

Good Good, you will get there in the end, keep up the good work! (Good Luck!!)

[Franciswat]

I have finally replaced the faulty alarm horn (1K0951605C) with a more recent unit (1K0951605F).




How to remove the alarm horn
viewtopic.php?f=56&t=72126&p=543845#p543845

New autoscan (no more errors)

Code: Select all

Friday,30,August,2019,16:56:38:39744
VCDS -- Windows Based VAG/VAS Emulator Running on Windows XP x86
VCDS Version: 17.1.3.0
Data version: 20170203 DS267.2
www.Ross-Tech.com


VIN: WVWZZZ6RZCY540000   License Plate: 


Chassis Type: 6R (7E0)
Scan: 01 03 04 08 09 10 15 17 19 25 44 55 56 0B

VIN: WVWZZZ6RZCY540000   

01-Engine -- 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
10-Park/Steer Assist -- Status: OK 0000
15-Airbags -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
55-Headlight Range -- Status: OK 0000
56-Radio -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine
Cannot be reached

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels: 6R0-907-37x-ESP82.clb
   Part No SW: 6R0 907 379 BC    HW: 6R0 907 379 AF
   Component: ESP8.2i front H05 0002  
   Revision: --------    
   Coding: 210224E3217100B5842524E484D700401300
   Shop #: WSC 00788 648 00255
   VCID: 00085B4297984341E9-8054

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J301)       Labels: None
   Part No SW: 6R0 820 045 N    HW: 6R0 820 045 N
   Component: Man AC        H02 0202  
   Revision: 0003SH02    
   VCID: 397EF6A6B0C2D289EE-806C

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels: 7E0-937-BCM-V1.clb
   Part No SW: 7E0 937 090     HW: 7E0 937 090 
   Component: BCM PQ25 Max4 H80 0736  
   Revision: B9080001    Serial number: 0771 060161479
   Coding: 3CB02BBF08E1240092380E916C6B0DD1DAC0672F608D30D0200000030000
   Shop #: WSC 02737 534 00190
   VCID: 68D863E29BE89B0141-803C

   Subsystem 1 - Part No SW: 6R0 959 801 AB    HW: 6R0 959 801 AB  Labels: 6R0-959-801.CLB
   Component: J386__TSG_FT  008 1611 
   Serial number: KU0KU004011200011991
   Coding: 18BC30

   Subsystem 2 - Part No SW: 6R0 959 802 AD    HW: 6R0 959 802 AD  Labels: 6R0-959-802.CLB
   Component: J387__TSG_BT  008 1611 
   Serial number: KU0KU005011200017885
   Coding: 08BC30

   Subsystem 3 - Part No: 1K8 951 171 A
   Component: DWA-Sensor 00  001 0103 
   Coding: 000000

   Subsystem 4 - Part No: 1K0 951 605 F
   Component: LIN BACKUP HO  H01 0008 
   Coding: 000000

   Subsystem 5 - Part No: 1K8 951 171 A
   Component: DWA-Sensor 00  001 0103 
   Coding: 000000

   Subsystem 6 - Part No SW: 1K8 959 442     HW: 1K8 959 442 
   Component: E221__MFL-DC1  H04 0103 
   Serial number: 29170002240760027504
   Coding: A40000

   Subsystem 7 - Part No SW: 6R0 959 811 G    HW: 6R0 959 811 G
   Component: J388__TSG_HL  008 1611 
   Serial number: KU0KU010011200012406
   Coding: 08BC32

   Subsystem 8 - Part No SW: 6R0 959 812 G    HW: 6R0 959 812 G
   Component: J389__TSG_HR  008 1611 
   Serial number: KU0KU009011200013136
   Coding: 08BC32

No fault code found.

-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels: 7E0-919-475.clb
   Part No SW: 7E0 919 475 L    HW: 56D 919 475 
   Component: PARKHILFE 8K  H02 0106  
   Revision: --------    Serial number: 20231629400567
   Coding: 108001
   Shop #: WSC 12345 123 12345
   ASAM Dataset: EV_VW75XPakrAssis8K 001003
   ROD: N/A
   VCID: 3B72ECAEB2FEE099FC-806E

No ASAM data for: "EV_VW75XPakrAssis8K" (VW25) 
No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels: 5K0-959-655.clb
   Part No SW: 6R0 959 655 K    HW: 6R0 959 655 K
   Component: VW10Airbag022 H09 0020  
   Revision: --------    Serial number: 003GX011W0JJ
   Coding: 003232
   Shop #: WSC 00788 648 00255
   ASAM Dataset: EV_AirbaV1W0BPAVW250 A01001
   ROD: N/A
   VCID: 4A9CB96AED24491177-801E

   Subsystem 1 - Serial number: 3575HRB4059124B2F99H

   Subsystem 2 - Serial number: 3585HRB4061131GQCOUS

   Subsystem 3 - Serial number: 3515RRB405P0VC0I5P0W

   Subsystem 4 - Serial number: 3525RRB40510VC0IA9B9

No ASAM data for: "EV_AirbaV1W0BPAVW250" (VW25) 
No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels: 5K0-920-xxx-17.clb
   Part No SW: 6R0 920 871 A    HW: 6R0 920 871 A
   Component: KOMBI         H03 0505  
   Serial number: 00000000000000
   Coding: 140E01
   Shop #: WSC 00788 648 00255
   ASAM Dataset: EV_KombiU_DS_VDD_RM09 A04113
   ROD: N/A
   VCID: 3460C7929FA02FE13D-8060

No ASAM data for: "EV_KombiU_DS_VDD_RM09" (VW36 *) 
No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels: None
   Part No SW: 7E0 909 901     HW: 7E0 937 090 
   Component: GW-K-CAN TP20 H80 0736  
   Revision: B9080001    
   Coding: 002200
   Shop #: WSC 02737 534 00190
   VCID: 68D863E29BE89B0141-803C

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer (J334)       Labels: 5K0-920-xxx-25.clb
   Part No SW: 5K0 953 234     HW: 5K0 953 234 
   Component: IMMO          H03 0505  
   Serial number:               
   Coding: 000000
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03009
   ROD: EV_Immo_UDS_VDD_RM09_VW21.rod
   VCID: 6ADC19EA8DE4A91157-803E

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 6Q0-423-156.clb
   Part No: 6R0 423 156 B
   Component: LenkhilfeTRW        V277  
   Coding: 11250
   Shop #: WSC 00788  
   VCID: 2F6AC8FEEA860C3940-807A

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range (J431)       Labels: 6R0-907-357.clb
   Part No SW: 6R0 907 357     HW: 6R0 907 357 
   Component: LWR-ECU       H02 0070  
   Revision: --------    Serial number: --------------
   Coding: 0110000001000000
   Shop #: WSC 00788 648 00255
   ASAM Dataset: EV_HealdRegulVWLWRPt 001004
   ROD: N/A
   VCID: 77FA309ECE5604F9D8-8022

No ASAM data for: "EV_HealdRegulVWLWRPt" (VW25) 
No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (J503)       Labels: None
   Part No SW: 6RD 035 187 B    HW: 6RD 035 187 B
   Component: Radio         541 5314  
   Revision: --------    Serial number: VWZZZ4K6200530
   Coding: 16000400040005
   Shop #: WSC 127395 840 08317
   VCID: 46848D5AF13CAD7193-8012

No fault code found.

End-------------------------(Elapsed Time: 03:18)--------------------------

[benzinkopf]

too bad. i just bought a used unit thinking i might be able to change the battery too[emoji23]


Sent from my iPhone using Tapatalk

[Franciswat]

Changing the battery does not ensure to solve the problem.

[RUM4MO]

Some people seem to get lucky, well maybe 1 person in 100!

[Franciswat]

Give it a try! Maybe you're luky!

[Mvplayer84]

Hi all. Sorry for reviving an old thread. Does anyone know what voltage comes to the siren signal wire to activate the alarm? I am getting 0.5v on the signal wire when alarm is in idle state (not triggered) and 0.8v when I trigger the alarm. How can I test the siren when it is removed from the car.

[Mvplayer84]

Hi all. Sorry for reviving an old thread. Does anyone know what voltage comes to the siren signal wire to activate the alarm? I am getting 0.5v on the signal wire when alarm is in idle state (not triggered) and 0.8v when I trigger the alarm. How can I test the siren when it is removed from the car.

[Franciswat]

Have no idea about the voltages or how to test the syren outside the car.
What kind of issue do you have? Anyway I think will be easier to just replace it.

When I tried to fix mine by replacing the batteries I've spent money for nothing.

[amer6R]

Do you lock your car via cobra remote or via central locking? It seems that both options activate the alarm?