Corsa does not start

If when the terminals a and b the code appears

83: Failure of the anti -theft immobilizer module, incorrect programming.
You have to put the scanner and schedule the module.

84: Failure of the anti -theft immobilizer module,
There is no signal.
Check the wiring, and connections that see the antenna in the starter lock to the anti -theft module.

85: Failure of the anti -theft immobilizer module,
Incorrect signal.
The fault has the key, try another key, if the failure persists, pass the scanner and schedule the module.

Once the fault is repaired, to reset the engine control module, it is enough to remove the battery mass for at least a minute.

All the best.