after flat battery car will not start due to management light flashing. fault code 1503 = immobilisor incorect signal....any idea,s anyone.
corsa engine management flashing
May 13, 2006
5 Replies
Line up the ECU specifiers that don't include battery backup or non volatile RAM in the specification up against a wall, and shoot them, pour encourager les autres.
Keys out of ignition- disconenct the battery again for at least 10mins.
Reconnect. Try again.
If still no joy- try the spare key.
If still not, then the ECU has forgotten the correct code, or has been internally damaged from a spike. How did you re-charge battery?
Tim..
re-charged it on the car as ive allways done, is there any way to re-set the ecu ?
yes disconnect battery for 10mins or so, and then reconnect!!!
Tim..
tried that, had the battery off the car and fully charged , but still the same.
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