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i can communicate will all modules in the car except the engine module... and it's been the same with the three different diag tool that i've used .... thanks for the advice of checking the line... i will spray everything with contact cleaner... can you share the electric diagram you are talking...

Hello just a little update, i'm still suffering with it aha i've tried basic OBD reader, ICARSOFT, ISTA and none of them are working to reach out the ECM (all the other modules are working). anyone has any idea on which connector that could be faulty (I've checked ECM relay, 30 A fuse in the...

hello Many thanks for the answer ;) Could you share the link where you found ista as I tried several but some are old, some contains malware and I have difficulties to find a reliable version… Thanks ;)

i've already tried with BMW section but doesnt work for me. i was even thinking to try with ISTA...

Hello Thanks for the reply I use ICARSOFT CR MAX and I can access all modules (air suspension , abs……) except the one for the engine which is the one I need. Thanks for your help

hello everyone, happy new year to everyone, i have a little issue that drives me nut on my RR i bought it 2 years ago (engine has been replaced by previous owner) and everything was fine but i could never access the ECM unit using diag tools. (ECM module called DDE4) suddenly now i have a...