They mean that your IMA battery is in bad shape, possibly terminal. Each of the codes has several subcodes which can be blinked out by using a paper clip to short two pins in the OBDII plug. You need to bookmark the S Keith thread for blink instructions. He also has some info on measuring tap voltages in the thread.
BTW, click "quick links" above, then "edit your details" to include your location. Someone may be close by who could help.