17ESN (Key CD) security operating procedure• If there is a problem with the inserted CD, an [ERR]message will appear for two seconds and the CD will beejected. Reinsert the ejected CD.• If a CD causes the [ERR] message to appear twice in arow, a [CHANGE] message will appear for two seconds.Try another CD.• The Security indicator will flash whenever the vehicle’signition is switched off.How to cancel the Key CD1 . Turn off the main unit power.2 . Press and hold button [1], then the [FUNC]button, and hold both for more than onesecond.A [SEC] message appears, then in two seconds it willchange to [DISC].The CD3421 is now ready to accept your Key CD in theCD slot.3 . Insert your Key CD into the slot.A [CANCEL] message appears, the Key CD is ejected.The Key CD is cancelled.
