Navigation frequently asks for anti-theft code and/or needs GPS initialization
- This is often caused by a loss of battery power, a low or poor battery condition, or a poor ground.
- Make sure that the latest navigation software is installed.
- Check any official Honda service website for more service information about the navigation system.
- Before troubleshooting, make sure you have the anti-theft codes for the audio-navigation unit.
- After troubleshooting, enter the anti-theft codes for the audio-navigation unit.
- Turn the ignition switch to LOCK (0).
- Disconnect audio-navigation unit connector A (24P), and check for loose terminals.
Are any of the terminals loose?
YES -Repair or replace the loose terminal(s).
NO -Go to step 3.
- Turn the ignition switch to ON (II).
- Measure the voltage between body ground and audio-navigation unit connector A (24P) terminals No. 14 and No. 24 individually.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
YES -Go to step 5.
NO --If the +B wire does not have voltage, repair an open in the wire between the under-dash fuse/relay box and audio-navigation unit connector A (24P). If the ACC wire does not have voltage, repair an open in the wire between the under-dash fuse/relay box and audio-navigation unit connector A (24P).
- Measure the voltage between audio-navigation unit connector A (24P) terminal No. 12 and body ground.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there less than 0.2 V?
YES -Replace the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).
NO -Repair an open or high resistance in the wire between audio-navigation unit connector A (24P) terminal No. 12 and body ground (G504) (see CONNECTOR TO FUSE/RELAY BOX INDEX ).