Diesel Data: Automotive Repair

Symptom Troubleshooting




Navigation System 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:

- Check the vehicle battery condition first Testing and Inspection.
- 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.
- 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.

1. Turn the ignition switch to ON (II).

2. Measure the voltage between navigation unit connector A (8P) terminals No. 1 and No. 2 and body ground.





Is there battery voltage?

YES -

Go to step 3.

NO -

If the +B wire does not have voltage, repair an open in the wire between the under-dash fuse/relay box and navigation unit. If the ACC wire does not have voltage, repair an open in the wire between the under-dash fuse/relay box and the navigation unit.�

3. Measure the voltage between navigation unit connector A (8P) terminal No. 4 and body ground.





Is there 0.2 V or less?

YES -

Replace the navigation unit Service and Repair.

NO -

Repair an open or high resistance in the wire between the navigation unit and body ground (G501).�