Just a quickie, guys - I've seen the references to entering the OBD II diagnostic/readout mode on earlier cars, but what's the sequence for, say, my 2002 Deville? Is the it same "OFF" and "Warmer" switch to start and then cycle though the reading as before? I didn't want to try that until I knew for sure, because with my luck, OFF and WARMER would lock the car down and disable both ignition keys.. :histeric:

Thanks much for any clarifications.