Quote:
Originally Posted by ainarssems
Immobilizer function can be removed from ECU so that it runs happily without instrument cluster. The inconvenience is that for ABZ engine ECU is not OBD programmable so memory needs to be desoldered, read by external reader, then modified software written to new memory chip and soldered back in or better to solder a socket in ECU and just plug the new chip in so that it is easily removed in future.
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You're correct in all you've posted, bar the instrument cluster. The IMMO does not need the cluster, as it's not housed there.
It has a seperate micro processor, housed in a cigarette box-sized box, which is housed under the steering column area in an Audi A8 or A4 B5 pre-'99.