Crashed Flashing of SID803A Siemens

[mezzo]

Hello,
I am very disapointed about myself, I realy have a problem now !?

I wanted to activate my cruisecontrol which I installed on my C8 9/2006 2.0 HDI 135 HP.

As Iam not common with Lexia, I used The 2nd point download and flashed my SID803A from Siemens.
I first thougt it just downloaded the image and then I can modify my cruise control. As it took very long, I walked away. But my notebook steppd into standyby. ****

Now the BSI can not communicate the the SID803A and my car can not start. When I repeat the steps above it says no more SID803A can be found.

Iam not common about the communiaction, the lost data and the things I have to transfer in an used SID803A with a working software.
Is there a chance to get a working software on my broken SID803A?

Or how would you solve this problem?

[GiveMeABreak]

How have you flashed the engine ECU? Normally you shouldn't be able to do this using Lexia without a dealer version, and secondly, there is no need to flash anything.

If you mean telecoding the cruise control option, then this can be activated simply enough in the Engine ECU / BSI when the correct dual brake switch is in place and the cruise control stalk is inserted into the steering control module.

You should never undertake any diagnostic work with a laptop if the battery is low, because if you are telecoding any options and it does not complete because of loss of power, you can end up leaving the ECU in an incomplete state. This may then render the ECU inoperable.

If the injection ECU (SID803A) is not communicating, first try a BSI reset procedure to see if you can get the ECU into sleep mode then wake it up. There is no guarantee, but it is worth a try:

BSI Reset / Battery Disconnect / Reconnect Procedure

If this doesn't work and you cannot start the car because the engine ECU is locked, you will either have to get it 'virginised' by a specialist, or replace it. BUT - if replacing it, you will also need a matched BSI and the immobiliser transponder in the Key fobs, as these are coded and operate as a set. If you are not sure what you are doing, get the dealer to code the virginised Engine ECU to the BSI for you - as you only get a few attempts to do it correctly I believe.

[mezzo]

How I got to flash the SID803A?
I got in Lexia an than clicked on Downloading —> Diesel Enginge->SID803A it said deleting eprom and than very slowly increased the procentage, I walked away and Notebook steped into sleepmode(stand by).
As I am left stearing I have to Open both windows?
Why open the bonnet?
1. You Said switch on the ignition and then hold the lock button on the key for 10 sec. Weile the key is in the ignition?
2. You Said remove key from ignition close the door... When did I open the door?

Best Regards Sorry for my asking but i warnt not to do any faults again.

[GiveMeABreak]

Ok - you should not have tried to flash the engine ECU (SID803A) - that was the worst thing to do - it is not required and I think you have now bricked it. You never use a Lexia clone to download anything to the ECU. The PSA server can lock out the Lexia clone and block it. The only solution it to try and get it flashed properly at the dealer - but I appreciate you can't drive the car!

Or you can try doing what you did before and try to reflash it again but at this stage you have nothing to loose. If the SID803A is not recognised by Lexia - then there is nothing you can do - the ECU has been left in a state that it is not operational. You will have to get it virginised by a specialist company and then it will have to be paired to your car's BSI properly.

As I am left stearing I have to Open both windows?

No, if your are LHD, just the driver side - so you can reach in and get key in ignition without opening door.

Why open the bonnet?

To get to the battery to disconnect the negative terminal - assuming the battery is in the engine compartment.

1. You Said switch on the ignition and then hold the lock button on the key for 10 sec. Weile the key is in the ignition?

Yes

2. You Said remove key from ignition close the door... When did I open the door?

Ignore "close the door" - I will correct that bit sorry.

This process is to ensure that the car computer networks can go into 'sleep mode' to do that, all the doors need to be closed and then left for the BSI to shut everything off after a few minutes. Then you disconnect the negative battery and leave it for a good 5 minutes. This allows all the ECUs to go to sleep. When you connect the negative back up - this reinitialises the BSI and the ECUs and wakes them up properly. Waiting a few more minutes before opening any doors or pressing any switches. After this time, you do the bit with the key in the ignition to make sure the fob is paired, remove and test the central locking works, then you can start the car. This makes sure the BSI and the ECUs are properly started from sleep mode.

It is only a suggestion to see if it will help the Engine ECU recover from a failed flash. I have my doubts, but is worth a try.

If this does not work then you are stuck until you have a specialist blank the engine ECU and then repair it.

Never, ever, use a laptop that is on battery power only to do any telecoding on your car - the power save features can switch off the USB ports and hard disk etc., when not being used (as the notebook / laptop thinks they are not being used) and then you can corrupt any of the ECUs on the car or worse the main BSI ECU. Lesson learned here I think.

ECU flashing for problems should be left to the dealer as often there will be further configuration needed after it has been updated that you may not be aware of. ECU software updating should not be done on a Lexia clone, as it can be blocked by the PSA server and then you are stuck with a non-working car.

[mezzo]

O.K. Battery is at the passeneger side in the food compartment(do not know the exact word).

I will phone tomorrow with a special. company.

Is there a way that they can program the ECU for a plug and play swap? If yes, what details they need to know, or do they need my BSI unit?

As the flashed image is not completly on the ECU (Siemens) my computer turned off after 5 minutes (FCK!), do such company have a complete image that they can flash?

Can they modify this to run plug and play in my car?

I allready tried to flash it again, but now it says no SID803A existing

[GiveMeABreak]

Unfortunately, all they might be able to do is clear the EPROM ready for programming to your car - you will need to a) have the correct software programmed in and b) you will need to have it coded to the vehicle BSI using the confidential code for your vehicle, then c) you will need to code the parameters for the option on your vehicle. (Type of Fan, alternator class, Injector categories, gearbox, ESP, cruise, etc.)

The software is held with PSA servers specifically for your vehicle. But before the software can be downloaded, the ECU must be able to be detected by the diagnostic equipment as it is this that performs the download and configuration. If it cannot communicate with the SID803A, then it cannot do any of these functions. You did not need to download anything - but because you choose the wrong option it has tried to reprogramme the EPROM chip instead - and worse, because it was interrupted by power loss of the notebook, it has now left the EPROM incomplete, so cannot communicate with Lexia.

They cannot swap it for another ECU as it will have to match the BSI and the transponder of your existing car. The only thing they might be able to do is blank the EPROM of the SID803A and leave this in a clean state so that when you connect it back to your car, you will have to programme it and match it to your car using Lexia (replacement parts menu I think) But you will need your confidential code that you can get from the Citroen dealer if you have ownership documents and for a small fee.

It might be sensible to ring Citroen and ask them if they could code your engine ECU back to the vehicle if you have it cleared first by a specialist. They should be able to do this - if you can get the vehicle transported to them. This way, they should be able to make sure the correct software is downloaded and configured.

[mezzo]

It might be sensible to ring Citroen and ask them if they could code your engine ECU back to the vehicle if you have it cleared first by a specialist. They should be able to do this - if you can get the vehicle transported to them. This way, they should be able to make sure the correct software is downloaded and configured.

This is what I will do tomorrow. First call the specialist then Citroen Dealer. If both can do their job as I hope, I will tow the car to the dealer, just 1km away (Blessing in disguise). They should do the disasamble of the ecu SID803A and I will ship it to the specialist they will make it to a clean install, on return the dealer can program the ecu to my car.

So there is no more easier way I think.

Thanks for your support!

[GiveMeABreak]

No problem , good luck.

[mezzo]

ECU will arrive at the specialist tomorrow. C8 is now at the dealership, they removed the ECU and I sent it to a ECU specialist, will report later. Hope to get a first report tomorrow.
stay tuned

[GiveMeABreak]

Ok, fingers crossed for you.

[mezzo]

Car runs.
The specialist, Endera Digitaltechnik repaired my Siemens unit for 350€. The dealer just plugged it in and it runs again.

Never ever i will do this studpid download option in Lexia again

The delay was by the choosen courier company.

[GiveMeABreak]

Sehr gut - a costly mistake, but at least you understand things a little better now hopefully and this will be good advice and a warning for others.

When you are using Diagbox / Lexia to diagnose your car, always leave the wireless adapter switch on - but make sure there is no live internet connection. That will ensure you don't accidentally do anything like that again.

Pleased you have your C8 back on the road.

[wurlycorner]

Glad this is sorted. Is cruise control also now activated?

Marc, why do you say to leave the wireless adaptor switched on?
I always leave it off, as the fail-safe way to make sure the computer never accidentally connects to the PSA server! Is there a reason why the software/Lexia hardware works better with the wireless adaptor on?

[GiveMeABreak]

Yes, because on some newer versions of Diagbox it uses the wireless / network adapter hardware code for activation purposes. Not having it on can cause constant activation nag screens, making it really impossible to use.