Chip readng

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Rhothgar
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1996 Citroen Xantia 1.9TD SX S1 - N707 MGP (Currrently laid up)
2000 Citroen Xantia 2.0 HDi S2 - X435 JGJ VF7**************[VIN obfuscated, can be read by forum staff] (Clutch died Dec 2017 - Resurrected Easter Sunday 2021)
1997 Citroen ZX SX TD - P788 AJL
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Re: Chip readng

Post by Rhothgar »

Mike

Did you ever get any further with this?

I have a duff ECU on the HDi that I need to swap out and am looking for the cheapest / most reliable way of doing a re-code.

I'll need to see how my mate remapped the ECU as he may still have the original EEPROM read for mine.

I've been watching a few videos on YouTube this afternoon which suggest using X-PROG or CARPROG for read the immobiliser chip and turning it off.

My plan is to buy an ECU from Ebay cheap and basically clone the firmware from mine to it and transfer the immobiliser chip with the immobilisation turned off or left on as it will presumably have the code from my old ECU if I solder it into the new ECU.

Be very interesting to hear of your further experience!
Rhothgar
Donor 2023
Posts: 1758
Joined: 22 Nov 2004, 00:21
Location: Nottingham - UK
My Cars: 2013 Peugeot 3008 Allure 1.6HDi - FD63 FWA VF3**************[VIN obfuscated, can be read by forum staff]
1995 Citroen Xantia 1.9TD S1 - M728 GDL VF7**************[VIN obfuscated, can be read by forum staff]
1996 Citroen Xantia 1.9TD SX S1 - N707 MGP (Currrently laid up)
2000 Citroen Xantia 2.0 HDi S2 - X435 JGJ VF7**************[VIN obfuscated, can be read by forum staff] (Clutch died Dec 2017 - Resurrected Easter Sunday 2021)
1997 Citroen ZX SX TD - P788 AJL
1959 Landrover Defender S2 - Two owners from new
1968 Triumph Vitesse Convertible 2.0
1980 Ford Escort RS2000 Customer - 2nd Owner
1988 Saab 900 T16S - A 1980's exercise in understated Hooliganism...
Oh! and two Harley Davidsons - A 1990 Sportster and a 2003 Fatboy 100th Anniversary (the only vehicle I have owned from new)
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Re: Chip readng

Post by Rhothgar »

GiveMeABreak wrote: 26 Dec 2018, 01:00 I'd just cough up the £15 to get the Transponder, Key and Confidential Code all in one hit for the C3. I think there is different kit needed to do different things so can be expensive.
Marc.

My ECU is duff and I want to reprogramme a cheap replacement I buy off Ebay. Just looking into a few options.

If I buy the confidential code for my car from Citroen, will this allow for the current ECU configuration to be read by Lexia? If so, surely this is the simplest solution to cloning an ECU.

I've been watching videos about desoldering the immo chip and transferring across to the replacement ECU. That in itself is not expensive.

Also, I see one seller on Ebay is selling an ECU, CPH and the circuit board from a key? Surely this would be the quickest solution for me to get the car up and running again providing it's all from the same car. I thought the RFID chip was glued to the key blade though. Not sure I could get a confidential code off Citroen if I need one in that case because I doubt the guy still has the log book for the car. Two separate issues of course.
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EDC5
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Re: Chip readng

Post by EDC5 »

does this galletto claim to be able to read the Dephi DCM 3.4 injection system?
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Re: Chip readng

Post by wheeler »

Rhothgar wrote: 23 Aug 2020, 18:57 If I buy the confidential code for my car from Citroen, will this allow for the current ECU configuration to be read by Lexia? If so, surely this is the simplest solution to cloning an ECU.
All the code will allow you to do is program a new (or virginised) ECU, Program a new (or virginised) CPH, program a virgin transponder chip or re program an existing key back to the car.
Rhothgar wrote: 23 Aug 2020, 18:57 Also, I see one seller on Ebay is selling an ECU, CPH and the circuit board from a key? Surely this would be the quickest solution for me to get the car up and running again providing it's all from the same car. I thought the RFID chip was glued to the key blade though.
On some cars the transponder chip is part of the PCB of the remote but on the Xantia the chip is inside the plastic of the part with the blade. Yes, if you get a matched set (ECU, CPH & transponder chip) from another car it will start without any programming. Do you have a link to the one you are looking at?
On CAN equpped PSA cars the security code can easily be extracted via the OBD socket (even without a working key) but not with Lexia. Im not aware of any tools that will retrieve the code on a xantia without direct reading the eeprom of either the ECU or CPH.
Rhothgar
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My Cars: 2013 Peugeot 3008 Allure 1.6HDi - FD63 FWA VF3**************[VIN obfuscated, can be read by forum staff]
1995 Citroen Xantia 1.9TD S1 - M728 GDL VF7**************[VIN obfuscated, can be read by forum staff]
1996 Citroen Xantia 1.9TD SX S1 - N707 MGP (Currrently laid up)
2000 Citroen Xantia 2.0 HDi S2 - X435 JGJ VF7**************[VIN obfuscated, can be read by forum staff] (Clutch died Dec 2017 - Resurrected Easter Sunday 2021)
1997 Citroen ZX SX TD - P788 AJL
1959 Landrover Defender S2 - Two owners from new
1968 Triumph Vitesse Convertible 2.0
1980 Ford Escort RS2000 Customer - 2nd Owner
1988 Saab 900 T16S - A 1980's exercise in understated Hooliganism...
Oh! and two Harley Davidsons - A 1990 Sportster and a 2003 Fatboy 100th Anniversary (the only vehicle I have owned from new)
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Re: Chip readng

Post by Rhothgar »

I've not got the confidential code for my car but Andrew has given me his for his ecu he has loaned me.

So is it worth programming my key to his ECU to see if it will then start again? Theoretically, I think not because you will say that my CPH is not matched to his ECU if I am understanding this correctly?

But surely if I programme my key to his ECU, I will then need MY confidential code to reprogramme my key back to my ECU.

I've been thinking it might be an idea to get a company to clone my ECU to a replacement secondhand one.

There is this offering on Ebay but the part number doesn't exactly match the 110HDi and I'm pretty sure RFID cheap on mine is on the plastic bit of the blade.

https://www.ebay.co.uk/itm/Starter-Kit- ... Sw~u5dmzbr

Mine is
0 281 010 251
96 362 548 80
EDC15C2 06
Build date 001007
28FM0261
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Re: Chip readng

Post by wheeler »

Rhothgar wrote: 24 Aug 2020, 17:00 So is it worth programming my key to his ECU to see if it will then start again? Theoretically, I think not because you will say that my CPH is not matched to his ECU if I am understanding this correctly?

But surely if I programme my key to his ECU, I will then need MY confidential code to reprogramme my key back to my ECU.
You wont be able to program your key to a different ECU, Yes problem one is the CPH & ECU are not matched. Problem 2 is you cant reprogram a transponder that's been written to a different car. In almost all cases they become 'locked' once programmed.

On that Ebay link its just a remote PCB, there is no transponder there. You would need the code for that set too & then you could program a new transponder to them.
Rhothgar
Donor 2023
Posts: 1758
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Location: Nottingham - UK
My Cars: 2013 Peugeot 3008 Allure 1.6HDi - FD63 FWA VF3**************[VIN obfuscated, can be read by forum staff]
1995 Citroen Xantia 1.9TD S1 - M728 GDL VF7**************[VIN obfuscated, can be read by forum staff]
1996 Citroen Xantia 1.9TD SX S1 - N707 MGP (Currrently laid up)
2000 Citroen Xantia 2.0 HDi S2 - X435 JGJ VF7**************[VIN obfuscated, can be read by forum staff] (Clutch died Dec 2017 - Resurrected Easter Sunday 2021)
1997 Citroen ZX SX TD - P788 AJL
1959 Landrover Defender S2 - Two owners from new
1968 Triumph Vitesse Convertible 2.0
1980 Ford Escort RS2000 Customer - 2nd Owner
1988 Saab 900 T16S - A 1980's exercise in understated Hooliganism...
Oh! and two Harley Davidsons - A 1990 Sportster and a 2003 Fatboy 100th Anniversary (the only vehicle I have owned from new)
x 78

Re: Chip readng

Post by Rhothgar »

EDC5 wrote: 23 Aug 2020, 19:05 does this galletto claim to be able to read the Dephi DCM 3.4 injection system?
I've no idea on that one. You should be able to find that information on original manufacturer's website. Problem is, as I am finding, looking for information is that there are so many clone devices out there it's a minefield!
Rhothgar
Donor 2023
Posts: 1758
Joined: 22 Nov 2004, 00:21
Location: Nottingham - UK
My Cars: 2013 Peugeot 3008 Allure 1.6HDi - FD63 FWA VF3**************[VIN obfuscated, can be read by forum staff]
1995 Citroen Xantia 1.9TD S1 - M728 GDL VF7**************[VIN obfuscated, can be read by forum staff]
1996 Citroen Xantia 1.9TD SX S1 - N707 MGP (Currrently laid up)
2000 Citroen Xantia 2.0 HDi S2 - X435 JGJ VF7**************[VIN obfuscated, can be read by forum staff] (Clutch died Dec 2017 - Resurrected Easter Sunday 2021)
1997 Citroen ZX SX TD - P788 AJL
1959 Landrover Defender S2 - Two owners from new
1968 Triumph Vitesse Convertible 2.0
1980 Ford Escort RS2000 Customer - 2nd Owner
1988 Saab 900 T16S - A 1980's exercise in understated Hooliganism...
Oh! and two Harley Davidsons - A 1990 Sportster and a 2003 Fatboy 100th Anniversary (the only vehicle I have owned from new)
x 78

Re: Chip readng

Post by Rhothgar »

Wheeler. Thanks for the reply.

My key has the same circuit board. Central locking is not working anyway on mine.

I read on one forum yesterday. If you can get the car running simply cut wires 36 and 66 to stop it relocking. Not sure I’d want to try that method TBH!!!!

That set in Ebay is already a matched ECU and CPH.

My mate reckons his kit will reprogrammed any key. However, apparently the Citroen system although primitive BSI was unstealable. Only Citroen could make a car that no-one would ever want to steal and make it uncrackable. 😆

My last resort is a plug and play ECU with he immobiliser already off but I may as well have a tinker and do that myself.

So for now I think I am going to proceed with reading the EEPROM, writing it to replacement ECU and swapping the immo chip over and go from there.
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Re: Chip readng

Post by wheeler »

Rhothgar wrote: 25 Aug 2020, 16:05 Wheeler. Thanks for the reply.

My key has the same circuit board. Central locking is not working anyway on mine.

I read on one forum yesterday. If you can get the car running simply cut wires 36 and 66 to stop it relocking. Not sure I’d want to try that method TBH!!!!
That could actually potentially work, its the same principal as disconnecting the old keypads when the ECU is unlocked, The problem is you cant really disconnect the entire CPH as you would loose Alarm, Central locking, Interior lighting etc. You could always cut the lines somewhere that they can easily be re joined. Would be interesting to know if this works.
Rhothgar wrote: 25 Aug 2020, 16:05 So for now I think I am going to proceed with reading the EEPROM, writing it to replacement ECU and swapping the immo chip over and go from there.
My understanding here is that you wouldnt need to read/write anything, if you swap the immo chip from your original ECU in to the donor that ECU is now matched to your system & should start straight away. You would only need to read it if you wanted to obtain the security code.
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Re: Chip readng

Post by myglaren »

Might be worth fitting a switch in the cut wires so it is easy to reverse if needed.
Rhothgar
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Posts: 1758
Joined: 22 Nov 2004, 00:21
Location: Nottingham - UK
My Cars: 2013 Peugeot 3008 Allure 1.6HDi - FD63 FWA VF3**************[VIN obfuscated, can be read by forum staff]
1995 Citroen Xantia 1.9TD S1 - M728 GDL VF7**************[VIN obfuscated, can be read by forum staff]
1996 Citroen Xantia 1.9TD SX S1 - N707 MGP (Currrently laid up)
2000 Citroen Xantia 2.0 HDi S2 - X435 JGJ VF7**************[VIN obfuscated, can be read by forum staff] (Clutch died Dec 2017 - Resurrected Easter Sunday 2021)
1997 Citroen ZX SX TD - P788 AJL
1959 Landrover Defender S2 - Two owners from new
1968 Triumph Vitesse Convertible 2.0
1980 Ford Escort RS2000 Customer - 2nd Owner
1988 Saab 900 T16S - A 1980's exercise in understated Hooliganism...
Oh! and two Harley Davidsons - A 1990 Sportster and a 2003 Fatboy 100th Anniversary (the only vehicle I have owned from new)
x 78

Re: Chip readng

Post by Rhothgar »

myglaren wrote: 25 Aug 2020, 20:40 Might be worth fitting a switch in the cut wires so it is easy to reverse if needed.
Now that's a good idea, Steve!
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