Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Navigation Module: Description and Operation





NAVI Control Unit
The gyro (angular speed sensor) and the CD-ROM drive are built-in units that control the navigation functions.

Signals are received from the gyro, the vehicle speed sensor, and the GPS antenna. Vehicle location is determined by combining this data with the data contained in the CD-ROM map.Location information is shown on liquid crystal display panel.


CD-ROM Driver
Maps, traffic control regulations, and other pertinent information can be easily red from the CD-ROM disc.

Map CD-ROM
The map CD-ROM has maps, traffic control regulations, and other pertinent information.

To improve CD-ROM map matching and route determination functions, the CD-ROM uses an exclusive Nissan format. Therefore, the use of a CD-ROM provided by other manufacturers cannot be used.