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

NOTE:

This 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 service information about the navigation system.

Measure the voltage between audio-navigation unit connector A (24P) terminal No. 24 and body ground, and between audio-navigation unit connector C (8P) terminal No. 1 and body ground.

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 on both terminals?

YES -Go to step 2.

NO -Repair an open in the wire between the under-hood 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 Von both terminals?

YES -Replace the AUDIO-NAVIGATION UNIT . ■

NO -Repair an open or high resistance in the wire between the audio-navigation unit and body ground (G503) . ■