Unit Check

Unit Check

Touch the item you want to check, and the check starts.




Display

This diagnostic performs additional checks on the communication bus between the control unit, and the display. In addition, the internal display electronic components are checked.

- When the Connection is NG, first check for loose terminals at the navigation unit and the display unit connections. Next check for an open or short in the communication line between the navigation unit and the display unit. If the line is found to have an open or short, replace the affected shielded harness.
- If the ROM or RAM is NG, replace the display unit.
- The version represents the software version in the display, and is for factory use only.




Radio

If the NG is indicated, check for loose audio unit connector.




Navi ECU

This screen diagnosis the navigation unit. When this diagnostic is initiated, there is a delay of up to a minute while it runs.

- "ROM (Application)", and "ROM (Loader)" are for factory use.
- If "V-RAM" or "D-RAM" is NG, then replace the navigation unit.
- If "GPS" indicates "NG (ANT)", then check the entire GPS Antenna wire from the navigation unit to the antenna. If the wire is crushed or damaged, try a known-good antenna. If this diagnostic reads OK, then order a new GPS antenna. If the diagnostic still reads NG (ANT), then replace the navigation unit.
- "DVD-ROM" represents the database version on the DVD. This information can also be found in Setup Screen 4 by touching "information".
- "Serial No." should be the same as the serial number found on the underside of the navigation unit. This number is needed to obtain the security code from the Interactive Network (IN) system.
- The "Mem Clr" button is for factory use and should not be used unless instructed by the factory. Touching this button will erase the customer's settings, personal information, GPS orbital data, and anything else stored in memory.




PC Card info

Normally there is no PC Card in the PC slot, and the screen should say, "PC Card is not inserted".




If the factory instructs you to insert a card, then this screen displays the Manufacturer, and Product Name as shown in the following screen.