OPEL ASTRA H NOT CRANKING

[audivwauto]

Hi all Astra h cant crank ,2005 16XEP

no coms to ecu and body control unit
used TECH2 in the cluster said mandatory ecu missing!...and then identified that the steering column(CIM)..no coms
went to buy a secondhand unit not the same (opel saferi) pluged in still not cranking
have checked fues in the boot and engine bay
maybe thats the wrong CIM or wring issues ? ,Can someone please help ?

[tadeo]

Sound like you have earth issue . Give direct earth to the engine or Ecu body and try connect to Ecu using tech2



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[Bllinda]

Change to a new or good and everything will be OK.
Move your data from the old.

[kelekele]

Probably your cim module or body control module damaged.
If you have communication with all other modules except engine ecu,EHPS and body,your body module is damaged.

[gttuning]

cim has to be coded to car with immo pin

[zogldi]

cim has to be coded to car with immo pin
Yes and you must have PIN from old and new CIM. Second see manual for new coding on OPCOM web site.
Regards!

[gttuning]

Simple if you have tolls for it.

[flyins]

Put original cim back on car friend and unplug ABS and see if it cranks, if it still doesnt crank plug abs back in and then unplug SDM which is at the back of the centre console , if one these modules is down (CAN/short on can problem) it shuts starting down, been down this road recently three times, but maybe yours is just a cim problem, but please just check the above first
sounds daft but try!! SERIOUSLY

p.s. and like ZOGLDI says cim coded, need orig pin for cim/reset and pin for your car

[audivwauto]

have re scanned sytem
no coms to ecu and CIM

fault code in engine bay fues box starter relay circuit faulty(permanent fault)and car cranks if i supply the replay )

have disconnected ABS and Air bag unit ..still no coms
must be a wiring problem

[kelekele]

Maybe ...
Open Opel Tis and trace can lines .Start from obd connector and you easy find what module is problem.

[audivwauto]

will do so Monday morning
thanks for all the support everyone