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ESN (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 be
ejected. Reinsert the ejected CD.
• If a CD causes the [ERR] message to appear twice in a
row, a [CHANGE] message will appear for two seconds.
Try another CD.
• The Security indicator will flash whenever the vehicle’s
ignition is switched off.
How to cancel the Key CD
1 .
Turn off the main unit power.
2 .
Press and hold button [1], then the [FUNC]
button, and hold both for more than one
second.
A [SEC] message appears, then in two seconds it will
change to [DISC].
The CD3431 is now ready to accept your Key CD in the
CD slot.
3 .
Insert your Key CD into the slot.
A [CANCEL] message appears, the Key CD is ejected.
The Key CD is cancelled.