Having had a flat battery, the usual slow turn over and non firing, a headlight malfunction showed on the dashboard, when i came home and tried to start it the car was dead so i recharged the battery for 24 hours. Tested the battery was showing 12.5 volt charge. Tried to start the car and now it shows an immobiliser active sign in the dashboard display.
I have tried disconnecting the battery for 30 seconds to see if it clears the memory (and fault) to no avail. has anyone got any suggestions or could this be a plain old knackered battery...? oh and by the way the headlight malfunction warning had displayed on the dash in the preceding 2 weeks(ish) but always went straight off.