just went to move my doblo (to temp fix the mirror mount) wouldnt start ,then i noticed that the key code light had come on ???

well i had a new alarm ,immobilser fitted two days ago who mentioned at some time the imobliser key as been cut off & taped to the sensor??
.
the light is now going off self algmating taped it
but trying to start the speedo dials are going up & down clocks gone back to 0000 & no start ,engine turning over
is fri the 13th:bang::bang:
put battery on charge & disconnected alarm system

any ideas

charged battery up all ok
i HATE modern electrics :yuck: :yuck:
a least on my old transit all these could be by passed