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Discussion Starter · #1 ·
I have the diagbox software and was wondering if this can be used to program my second key it opens the doors and fits the ignition but won’t start the car anybody any ideas?
 

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You also need the unique alphanumeric security code for the vehicle to gain access in to the key programming / coding.
 

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No, you can not read it from Diagbox. That would be poor security. If you don't have a card with the code, ask it from the dealer.
 

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Any UK Peugeot main dealer can supply the security code

NOTE: They will require to see the V5C registration document for the vehicle & some kind of photo id for yourself - your photocard driving licence or passport.
 

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Discussion Starter · #6 ·
It’s a 2006 307cc will they keep records that far back and it’s had a replacement ecu at some stage would that affect it ?
 

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If its had a replacement BSI you will need to get the code for the BSI stored VIN number. Or a good lock smith should be able to read PIN. Where are you located in the UK
 

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If it opens the doors it likely its been programmed and the transponder chip is broken or if separate has not been swapped to a new key case at sometime in the past
 

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Discussion Starter · #10 ·
Do you know what part of diagbox is it under and has it got to be connected to the car to do it??
 

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Do you know what part of diagbox is it under and has it got to be connected to the car to do it??
Yes you need Diagbox connected to the car to program a key. This video gives an example of programming a key with Diagbox:

Three warnings:
(1) There is no point attempting this if you don't have the car's PIN.
(2) When you program a new key all the old keys will be erased and need to be reprogrammed at the same time as the new key.
(3) As Windy said there may be a problem with your key, if so, it will not be possible to reprogram it.

Can you tell a bit more about the key. A photo would help. Is the key a remote entry type or just a standard key? The older Peugeot remote entry keys had a seperate transponder chip which people often lost when they changed the key case. The newer keys have a small coil in place of the transponder chip and these sometime break.

One thing worth doing is to connect Diagbox to the car. The first thing it will do is read the car' VIN. Take a note of this VIN and compare it with the official VIN for the car. If it matches you should have no problem getting a dealer to provide (for a fee) you with the car's PIN. If they don't match it might be difficult to get the dealer to supply the PIN but a good automotive locksmith should be able to read the PIN from the BSI or ECU.
 

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Discussion Starter · #12 ·
Yes you need Diagbox connected to the car to program a key. This video gives an example of programming a key with Diagbox:

Three warnings:
(1) There is no point attempting this if you don't have the car's PIN.
(2) When you program a new key all the old keys will be erased and need to be reprogrammed at the same time as the new key.
(3) As Windy said there may be a problem with your key, if so, it will not be possible to reprogram it.

Can you tell a bit more about the key. A photo would help. Is the key a remote entry type or just a standard key? The older Peugeot remote entry keys had a seperate transponder chip which people often lost when they changed the key case. The newer keys have a small coil in place of the transponder chip and these sometime break.

One thing worth doing is to connect Diagbox to the car. The first thing it will do is read the car' VIN. Take a note of this VIN and compare it with the official VIN for the car. If it matches you should have no problem getting a dealer to provide (for a fee) you with the car's PIN. If they don't match it might be difficult to get the dealer to supply the PIN but a good automotive locksmith should be able to read the PIN from the BSI or ECU.
Hi
The ecu has been replaced at some stage so the vin is different there is no chip in the key case that works the second key fits doors and ignition just won’t fire up
So how’s the best and cheapest way to get the pin no will Peugeot supply it? Or how else can it be read ? Something I can do??
 

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Hi
The ecu has been replaced at some stage so the vin is different there is no chip in the key case that works the second key fits doors and ignition just won’t fire up
So how’s the best and cheapest way to get the pin no will Peugeot supply it? Or how else can it be read ? Something I can do??
The new ECU needed to match the BSI so if a new blank ECU was fitted it is likely to have the original VIN. If the VIN has been changed and you have some documentation to prove this you may be able to persuade a dealer to give you the PIN but I have my doubts.

There are tools that can read the PIN on many cars. I would try someone like Timpson Car keys by Timpson . The simplest thing for them is to clone your existing working key but they are also likely to have some specialist who can retrieve your PIN.
 

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Discussion Starter · #15 ·
This is the inside of both fobs I went to timpsons and he read both keys and there both the same code so he doesn’t know why one works and one doesn’t new battery in both ????? I give up
 

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I understand correctly the keys are cloned so you're right they both should start the car but I only expect the remote entry to work with one key because only one transmitter can be in synch with the car.

The small coil on the battery side of the key's PCB is used to couple the ignition switches transponder reader. The coil is connected to on one of the Integrated Circuits on the other side of the PCB. This IC does the transponder function and replaces the seperate transponder chip. Sometimes these coils break contact with the PCB. You can check this with an multimeter on the Ohms range. I don't know how the locksmith checked the key but I wonder if his system is more sensitive than the car's transponder reader.
 

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Discussion Starter · #19 ·
I understand correctly the keys are cloned so you're right they both should start the car but I only expect the remote entry to work with one key because only one transmitter can be in synch with the car.

The small coil on the battery side of the key's PCB is used to couple the ignition switches transponder reader. The coil is connected to on one of the Integrated Circuits on the other side of the PCB. This IC does the transponder function and replaces the seperate transponder chip. Sometimes these coils break contact with the PCB. You can check this with an multimeter on the Ohms range. I don't know how the locksmith checked the key but I wonder if his system is more sensitive than the car's transponder reader.
Hi thanks for your help he put the keys into a machine they use to code the key but he said it’s pointless having it done as they are both showing the same codes when I put the other key in I get a security fault on the dashboard straight away and it won’t start
 
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