Operation CHARM: Car repair manuals for everyone.

Symptom Troubleshooting




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

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.

1. 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.

Is there battery voltage in either terminal?
YES - Go to step 2.

NO - Repair open in the wire between the under-hood fuse/relay box and the audio-navigation unit.










2. 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.

Is there less than 0.1 V in either terminal?
YES - Replace the audio-navigation unit. Audio-Navigation Unit Removal/Installation (With Navigation)

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