Navigation frequently asks for anti-theft code and/or needs GPS initialization

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

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 DVD color and version are installed.
Check any official Honda service website for more information about the navigation system.

Turn the ignition switch to ON (II).
Measure the voltage between body ground and audio-navigation unit connector A (24P) terminal No. 14 and No. 24, and audio-navigation unit connector C (8P) terminal No. 1 individually.

Fig 1: Measuring Voltage Between Audio-Navigation Unit Connector A (24P) Terminal No. 24 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 2: Measuring Voltage Between Audio-Navigation Unit Connector C (8P) Terminal No. 1 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage in either terminal?

YES -Go to step 3.

NO -Repair an open in the wire between the under-dash fuse/relay box and the audio-navigation unit.
Measure the voltage between audio-navigation unit connector A (24P) terminal No. 12 and body ground, and between audio-navigation unit connector C (8P) terminal No. 4 and body ground.

Fig 3: Measuring Voltage Between Audio-Navigation Unit Connector A (24P) Terminal No. 12 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 4: Measuring Voltage Between Audio-Navigation Unit Connector C (8P) Terminal No. 4 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there less than 0.2 V in either terminal?

YES -Replace the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).

NO -Repair an open or high resistance in the wire between the audio-navigation unit and body ground (G503) (see DASHBOARD WIRE HARNESS (VIEW OF MIDDLE SECTION) (WITH NAVIGATION) ).