I have thrown the old unit away now but I am sure it was a 200mah unit with 3 solder tags, there was nothing available so I too was going to use a 150mah one, if my memory is right about the 2 solder tags on one terminal (stops it being fitted the wrong way round) and if your PCB is that format they are out there but the one you have could easily be adapted.

8 hours ago, FatblokeVRS said:

Just found this battery. Stock coming in soon.

 

 

https://cpc.farnell.com/varta/55615305060/battery-nimh-5cell-6v-150mah/dp/BT05127?ost=battery+tabs+solders&krypto=oATC%2BmmmL3yut2iXTbA1AcI%2FyoYipGYx59YQzZiayP6SAKRCVPAdEOOsRfIyFFyvCLUi%2B0kxL0xTfWhkNojZRxSdlrgK6obxyogkT2Ryjxs%3D&ddkey=https%3Aen-CPC%2FCPC_United_Kingdom%2Fc%2Ftools-maintenance%2Fsoldering%2Fsolder-tabs%2Fbattery-tabs-solders

 

 

I will try replacing the one in my siren. I opened it up a few weeks back but had the wrong battery.

 

Board looks fine, only get a battery low voltage warning in VCDS. No other errors. No leakage on the board.

 

good luck with that i tried one looks like your one and it didnt work, wasted £18 on that one lol please let me know how you get on?

 

14 hours ago, davezim said:

good luck with that i tried one looks like your one and it didnt work, wasted £18 on that one lol please let me know how you get on?

 

 

Mine works fine. I just noticed a low voltage error when I scanned it. Hopefully it's ok with a new battery.

 

If not I may try one of the new units around £40. I think a few have used them with no issues.

 

Hi to everyone,

 

My car Skoda Octavia II (facelift 2009) 1.6 TDI CR (105 HP).

 

I have a problem with my alarm siren. One day the alarm sound stopped and never sounded. I decided to disassemble the part from the vehicle and replace the battery (As I have seen the posts of battery changers on the forum site). Everything went well, but when I removed the alarm siren circuit, I found that the battery leaked and caused oxidation on the circuit. I wanted to clear oxidation through the circuit, but the circuit path was broken because circuit path was destroyed by oxidation. So here is my question. Where can I find the circuit diagram or photo of the circuit? They want an unnecessarily expensive price for this component in my country. Since I have electrical and electronic knowledge, I want to repair it myself. I hope you can help with this. Thanks for your help. Here is some photos of my work. 

 

 

1 minute ago, fatihatamer said:

Hi to everyone,

 

My car Skoda Octavia II 2012 1.6 TDI CR (105 HP).

 

I have a problem with my alarm siren. One day the alarm sound stopped and never sounded. I decided to disassemble the part from the vehicle and replace the battery (As I have seen the posts of battery changers on the forum site). Everything went well, but when I removed the alarm siren circuit, I found that the battery leaked and caused oxidation on the circuit. I wanted to clear oxidation through the circuit, but the circuit path was broken because circuit path was destroyed by oxidation. So here is my question. Where can I find the circuit diagram or photo of the circuit? They want an unnecessarily expensive price for this component in my country. Since I have electrical and electronic knowledge, I want to repair it myself. I hope you can help with this. Thanks for your help. Here is some photos of my work. 

 

 

 

I doubt you'll find A circuit diagram from Skoda as they only supply the replacement part. Bosch is the manufacturer if I recall correctly. I even contacted varta for the official cells and they said oem only contact vehicle manufacture. I know you can adapt similar cells.

 

 I've got one or two sirens in the shed from when I've replaced. I could try and photo the area of the damaged board assuming it is intact on my old units.

 

On 08/06/2020 at 22:07, TheClient said:

I doubt you'll find A circuit diagram from Skoda as they only supply the replacement part. Bosch is the manufacturer if I recall correctly. I even contacted varta for the official cells and they said oem only contact vehicle manufacture. I know you can adapt similar cells.

 

 I've got one or two sirens in the shed from when I've replaced. I could try and photo the area of the damaged board assuming it is intact on my old units.

 

 

I would be very grateful if you could photograph. Because I'm looking at circuit pictures from other people, but none of them work for me. I especially need a photo of the area where there is a minus pole with battery leakage. I also think there are breaks under the chip (14-leg long chip). Thank you for your help. 

On 12/06/2020 at 11:56, fatihatamer said:

 

I would be very grateful if you could photograph. Because I'm looking at circuit pictures from other people, but none of them work for me. I especially need a photo of the area where there is a minus pole with battery leakage. I also think there are breaks under the chip (14-leg long chip). Thank you for your help. 

Hi, so it turns out the one I could find which I have disassembled is a 1k0 951 605C which is interchangeable with 1k8 951 605 but the cct looks completely different and the supplier is different. The 1k0 951 605C was Bosch.  

 

I do have the 1k8 951 605 which was intact and operating when I changed it at the 6 year mark. But I didn't really want to cut it open when it was still functional.

 

Do these photos in this forum provide any detail, you could ask the sender to send full res images? Would that give what you need?

 

http://skoda-ural.ru/repair/remont-zamena-sireny-shtatnoi-signalizatsii-na-a-m-skoda-octavia-a5-fl

 

 

 

15 hours ago, TheClient said:

Hi, so it turns out the one I could find which I have disassembled is a 1k0 951 605C which is interchangeable with 1k8 951 605 but the cct looks completely different and the supplier is different. The 1k0 951 605C was Bosch.  

 

I do have the 1k8 951 605 which was intact and operating when I changed it at the 6 year mark. But I didn't really want to cut it open when it was still functional.

 

Do these photos in this forum provide any detail, you could ask the sender to send full res images? Would that give what you need?

 

http://skoda-ural.ru/repair/remont-zamena-sireny-shtatnoi-signalizatsii-na-a-m-skoda-octavia-a5-fl

 

 

 

 

 

I have reviewed the link you sent, it is the same part that I have, but the part I need is not detailed. I will ask the sender if he has the detailed picture. Thanks for your help. 

1 hour ago, fatihatamer said:

 

 

I have reviewed the link you sent, it is the same part that I have, but the part I need is not detailed. I will ask the sender if he has the detailed picture. Thanks for your help. 

If you don't get anywhere. I will cut mine open. Let me know. Tks 

On 16/06/2020 at 10:29, TheClient said:

If you don't get anywhere. I will cut mine open. Let me know. Tks 

Thank you so much. I hope that won't be necessary to open it. Thanks for all your help. 

Hi again

 

I bought the alarm siren from a place that sells used parts. I'm sure the alarm siren is working. But when I put it in the car and after 2 days, the alarm still doesn't work. What could be the reason for this? Need something like clearing errors in the Central Control Unit? What did you do after the alarm siren changed? Please enlighten me. I started to get bored thoroughly.

 

😃

15 hours ago, fatihatamer said:

Hi again

 

I bought the alarm siren from a place that sells used parts. I'm sure the alarm siren is working. But when I put it in the car and after 2 days, the alarm still doesn't work. What could be the reason for this? Need something like clearing errors in the Central Control Unit? What did you do after the alarm siren changed? Please enlighten me. I started to get bored thoroughly.

 

😃

When I've replaced an equivalent model in an mk5 golf, that was inoperative, it worked straight away even though there was an error code previously.

 

Can you test the siren operates with 12v to the appropriate terminals?  It may be faulty??

The appropriate terminal? How do I test? In the work done on the site you sent me in previous messages, I saw something about deleting error codes, could that have something to do with it?

On 01/07/2020 at 06:59, fatihatamer said:

The appropriate terminal? How do I test? In the work done on the site you sent me in previous messages, I saw something about deleting error codes, could that have something to do with it?

Ok, well you could start by checking the 3 pin body harness connector.  Between pin 2, ground and and 3(constant 12v), you should get 12v. Otherwise car wiring or source electricals are faulty.

 

After plugged into the car overnight or having rigged up a harness to give the alarm 12V, you could test the battery voltage on the board to make sure it is showing charged voltage.  That would require cutting the replacement item though.

 

I thought the activation might be a switched 12V but it is lin bus, so I confess, I do not know how you would emulate an alarm activation message to get it to activate. But if it was plugged in I would have the cars windows down, lock car with fob once to activate alarm, wait 30 seconds, then wave hands inside the car to trip the alarm sensors.

 

There will probably be error codes stored but when I have replaced faulty units, they have not required clearing to get alarm to operate. If it is a different model alarm perhaps it needs coding, I don't have VCDS so I have never done that.

 

Refer to that russian article for pin numbering as it is 1,3,2. Left to Right, looking at the ALARM UNIT PINs from FRONT of alarm.

 

Pin 1 to T73b- white-C-36 - LIN bus, alarm horn
Pin 2 to Ground
Pin 3 to Terminal 30/Constant 12V

 

 

Thank you so much. I will check these pins after that I will let you know.

Hi, I have a skoda octavia 2.0 tdi elegance dsg 2012 ,for some reason yesterday the alarm kept going off whem I was trying to remotely lock the car ,tried all car doors ,including bonnet catch and boot ,and doing up the windows ,also manually locking the car door .and also tries spare key to see if it was dead battery ,but that doesn't seem to be the case ,once I gain access to the vehicle amd then want to lock it intermittently sets the alarm off after about 15 seconds ,and it's only when I try lock the doors ,any ideas ?