Operation CHARM: Car repair manuals for everyone.

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

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

NOTE:
- Check any official Honda service website for more service information about the navigation system.
- Check that connectors for poor connections or loose terminals.

1. Turn the ignition switch to ON (II).
2. Measure the voltage between body ground and navigation unit connector C (8P) terminals No. 1 and No. 2 individually.






Is there battery voltage?

YES - Go to step 3.

NO - If the +B or ACC wire does not have voltage, repair open in the wire between the driver's under-dash fuse/relay box and the navigation unit.

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






Is there less than 0.1 V?

YES - Replace the navigation unit.

NO - Repair open or high resistance in the wire between navigation unit connector C (8P) terminal No. 4 and body ground (G504).