Operation CHARM: Car repair manuals for everyone.

Unit Check


Unit Check

Unit Check:




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

Disp

Disp:




When the connection is NG.

First check for loose terminals at the navigation unit and the display unit connectors.

Next check for an open or short in the communication line between the navigation unit and the display unit. If the line is OK, replace the display unit. If the line is found to have an open or short, replace the affected shielded harness.

When the ROM or RAM is NG.

Replace the display unit.

System History

System History:




This screen is for the manufacturer's use only.

NOTE: Do not touch the CLR switch. Touching CLR will clear the system history.

GPS Information

GPS Information:




This screen shows the condition of the GPS reception and the vehicle position.

The vehicle should be parked outside away from building, tall trees, high tension lines for 10 minutes with motor running.

The number of satellites box should contain at least three yellow satellite icons. If not, troubleshoot for satellite icon is not indicated.

Car Status

Car Status:




Use the car status screen to check each signal. If the indication does not match the actual vehicle status, check the applicable signal line.

- VSP (vehicle speed pulse indication)
- OFF when vehicle is not moving
- ON when vehicle is moving

- BACK (reverse indication)
- OFF when shift lever is in any position other than reverse
- ON when shift lever is in reverse

- CHG (charging indication)
- ON when engine is running and alternator is charging
- OFF when engine is off or alternator is not charging

- ILL (illumination indication)
- OFF when parking lights or headlights are off
- ON when parking lights or headlights are on

Navi ECU

Navi ECU:




When any item is NG, replace the navigation unit.

Back-up Clear

Back-up Clear:




This screen is for manufacture's use only.