Anti-Theft Feature

The audio-navigation unit has an auto anti-theft protection circuit. When any of these actions occur, the unit enters its anti-theft mode:

• Disconnecting the 12 volt battery.
• Disconnecting the audio-navigation unit connector A (24P) and D (20P).
• Removing the No. 1 (15 A) fuse from the under-dash fuse/relay box.

The audio-navigation unit receives vehicle information from the F-CAN bus. If there is a problem with the bus, a problem with the PCM that it is not sending the information, or is sending the wrong information (for example the PCM was substituted from another vehicle), the audio navigation unit asks for a security code.

After service, reconnect power to the audio-navigation unit, and turn the ignition switch to ON (II). There are two ways to exit the anti-theft mode:

• Press and hold the VOLUME/POWER (◦) knob for at least 2 seconds. The audio-navigation unit automatically exits the anti-theft mode. If the audio-navigation unit does not exit anti-theft mode, like in cases where a known-good unit (including the SD module) was substituted for testing, enter the anti-theft code.
• Enter the 5-digit anti-theft code.

If the code is lost or unavailable, you can get the code from the iN using the audio-navigation unit serial number. The serial number can easily be obtained without removing the audio-navigation unit. To get the serial number and the code, do the following:

• Press and hold the MAP/GUIDE, the DEST, and the CANCEL buttons at the same time.
• At the select diagnosis items screen, select Detail Information & Setting, select Unit Check, then Navi ECU. The system runs a brief diagnosis, then the audio-navigation unit serial number is displayed.
• Use the anti-theft code inquiry option on the iN to look up the 5-digit anti-theft code. The iN may display more than one code for a given serial number. This is because serial numbers are not unique. You may have to try more than one 5-digit code. If no code is shown, or if the code(s) given do not work in the audio-navigation unit, contact the Automobile Warranty department.

The SD module and audio-navigation unit are mated to each other and can only be mated to a new unit. If someone tried to put a stolen SD module in another audio-navigation unit, or insert their SD module in a stolen audio-navigation unit, the two components cannot mate and a SD module read error appears on the display.

When replacing the audio-navigation unit, be sure to give the customer the new anti-theft security code.