'95 Dodge GC- How to get those codes

I'm new to the Dodge Diagnostics System thing. I know get the "SES light" trouble codes from my '91 GM car, but need help on the steps to follow to be able to pull the "Service Engine light" codes on my '95 Grand Caravan. Anyone mind helping or pointing me to the right direction.
Thanks in advance for any help...

to get the codes turn the key to on-off-on-off-on (without starting the engine) and the codes will flash on the check engine light

Great! Thanks for your help...

Forgot to ask... how can I tell if I got the TBI or MFI engine?
Mine is a 1995 Dodge Grand Caravan, 3.3L V6