Navigation frequently asks for anti-theft code and/or needs GPS initialization
NOTE:
- Check the vehicle battery condition first (see BATTERY TEST ).
- Check the connectors for poor connections or loose terminals.
- This is often caused by a loss of battery power, a low or poor battery condition, or a poor ground.
- Make sure that the correct navigation DVD color and version are installed.
- Check any official Honda service website for more service information about the navigation system.
- Turn the ignition switch to LOCK (0).
- Disconnect navigation unit connector A (8P), and check for loose terminals.
Are any of the terminals loose?
YES -Repair or replace the loose terminal(s).
NO -Go to step 3.
- Reconnect navigation unit connector A (8P).
- Turn the ignition switch to ON (II).
- Measure the voltage between body ground and navigation unit connector A (8P) terminals No. 1 and No. 2 individually.Fig 1: Measuring Voltage Between Body Ground And Navigation Unit Connector (8P) Terminals No. 1 And No. 2
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
YES -Go to step 6.
NO -If the +B wire does not have voltage, repair open in the wire between the driver's under-dash fuse/relay box and the navigation unit. If the ACC wire does not have voltage, repair open in the wire between the driver's under-dash fuse/relay box and the navigation unit.
- Measure the voltage between navigation unit connector A (8P) terminal No. 4 and body ground.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there less than 0.2 V?
YES -Replace the navigation unit (see NAVIGATION UNIT REMOVAL/INSTALLATION ).
NO -Repair an open or high resistance in the wire between the navigation unit and body ground (G602) (see CONNECTOR TO HARNESS INDEX ).