Navigation Frequently Asks For Anti-Theft Code and Needs GPS Initialization

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

1. Turn the ignition switch to ON (II).
2. Measure the voltage between navigation unit connector A (17P) terminal No. 14 and body ground, and between terminal No. 17 and body ground.






Is there battery on both terminals?

YES - Go to step 3.

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

3. Measure the voltage between the, navigation unit: connector A (17P) terminal No. 9 and body ground, and between navigation unit connector C (12P) terminal No. 4 and body ground.






Is there less than 0.1 V on both terminals?

YES - Replace the navigation unit.

NO - Repair open in the wire between the navigation unit and body ground (G504, G505).