bow123 Posted March 9, 2016 Posted March 9, 2016 i have a 2004 citroen c8 2.0hdi 16v lx there has been a problem popping up now and again ( ENGINE IMMOBILISER FAULT ) usually removed battery terminal and car would go again now the problem is in the car all the time tried a new ecu kit but it didnt suite the car so put the cars own ecu kit back in back to same thing ( engine immobiliser fault ) removed the battery terminal car throughs up ( ECOMEMY MODE ) now there is no power to the diag port so cant get the car linked to a computer to read it any one come across this before Quote
Simple Posted March 9, 2016 Posted March 9, 2016 (edited) Download and install the "Citroen Service Box" (lots of giga bytes) and check all wiring/connections to get the power back to OBDII connector. find out if you have a dry joint or some sort of bad connection/component..If all looks OK, then you may try re flashing the ECU firmware (after saving your original one).I could share with you my firmware if you have the same ECU 15C2 (0281011334):1- C8 2.0 HDI 110hp 0281011334-1037368282.Bin2- C8 2.0 HDI 110hp 0281011334-1037368584.Bin Edited March 9, 2016 by Simple Quote
paul.h Posted March 9, 2016 Posted March 9, 2016 Welcome to the forum. With the replacement ecu kit, did the immobiliser problem go - if so what parts are in the kit ? Quote
bow123 Posted March 10, 2016 Author Posted March 10, 2016 the replacement ecu kit come with ecu / bsi / bsm / key / transponder ring not sure if immobiliser prob was there as the car went straight into ecomomy mode and just wouldnt start Quote
bow123 Posted March 10, 2016 Author Posted March 10, 2016 Download and install the "Citroen Service Box" (lots of giga bytes) and check all wiring/connections to get the power back to OBDII connector. find out if you have a dry joint or some sort of bad connection/component..If all looks OK, then you may try re flashing the ECU firmware (after saving your original one).I could share with you my firmware if you have the same ECU 15C2 (0281011334):1- C8 2.0 HDI 110hp 0281011334-1037368282.Bin2- C8 2.0 HDI 110hp 0281011334-1037368584.BinBOSCH 0/281/011/334 EDC15C2 96/525/904/80 Quote
Simple Posted March 10, 2016 Posted March 10, 2016 (edited) It is the same as mine Bosch EDC 15C2, notice that this# 0/281/011/334 = #0281011334. The first # in the file name indicates the ECU and the second the file version. I have attached both 1037368282 and 1037368584. If you have a reading/flashing tool, like "MPPS V13.02 Interface" (they are about 10 Euros from Aliexpress), read the existing Firmware first, make a backup, then try to flash one of the files (1037368584 is the newer one, I am not about the release dates). p.s. Ensure you have a FULLY charged battery (I am not joking), weak battery can be the source of all strange problems!!C8 2.0 HDI 110hp 0281011334-Originals.zip Edited March 10, 2016 by Simple Quote
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