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Astra 3 2005 key problem
21-12-2015, 12:50 PM,
Post: #1
KVauxhall  Astra 3 2005 key problem
Hi all , i would like to ask for something. My mom have opel astra 3 2005 year with petrol engine. We have 2 keys, but on one key is a problem , this key can only open and close car , this key i cannot start the car. What could be wrong ?

I have bmw and i have a procedure for coding all keys , maybe here is something like this ?

Thanks for any information.
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21-12-2015, 12:54 PM,
Post: #2
RE: Astra 3 2005 key problem
Transponder inside the key is faulty,that's the problem.
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21-12-2015, 13:08 PM,
Post: #3
RE: Astra 3 2005 key problem
Could you tell me more about that ? I need someone who replace transponder or something else ?
Thanks
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21-12-2015, 13:39 PM,
Post: #4
RE: Astra 3 2005 key problem
Yes, you would either need to reprogram the transponder or replace it. you will also need a pin code to execute the two options.

please click 'like' and 'reputation' if you like my response and if you can advise where you live or what diagnostics software you have I may be able to guide you on this.
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[+] 2 users say Thank You to Automan for this post
21-12-2015, 14:58 PM,
Post: #5
RE: Astra 3 2005 key problem
Post photo of your pcb my friend

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03-04-2016, 09:51 AM,
Post: #6
RE: Astra 3 2005 key problem
Coil inside key faulty, astra h have pcf7941 inside.

EDC17 MED17 eeprom checksum yes
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03-04-2016, 10:52 AM,
Post: #7
RE: Astra 3 2005 key problem
Thats true only coli is your problem, transponder is the same to remote control and to immo, so no transponder problem but only coil inside key
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14-12-2016, 19:11 PM,
Post: #8
RE: Astra 3 2005 key problem
Coil inside key faulty
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14-12-2016, 21:06 PM,
Post: #9
RE: Astra 3 2005 key problem
See the attached picture and you will know what needs doing........


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15-12-2016, 10:44 AM,
Post: #10
RE: Astra 3 2005 key problem
I think he solved for this one year old thread smile

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