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

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

1. Check the No. 23 (10 A) and No. 17 (15 A) fuses in the under-hood fuse/relay box and the No. 34 (7.5 A) fuse in the under-dash fuse/relay box.

Are the fuse OK?

YES - Go to step 2.

NO - Replace the fuse.

2. Turn the ignition switch ON (II).




3. Measure the voltage between navigation unit connector A (17P) terminal No. Hand body ground, between terminal No. 17 and body ground, and between navigation unit connector C (12P) terminal No. 1 and body ground.

Is there battery voltage on all terminals?

YES - Go to step 4.

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




4. Measure the voltage between navigation unit connector A (17P) terminal No. 9 and body ground, between navigation unit connector C (12P) terminal No. 4 and body ground, and between navigation unit connector B (22P) terminal No. 15 and body ground.

Is there less than 0.1 V?

YES - Replace the navigation unit.

NO - Repair open in the wire between the navigation unit and body ground (G502), or navigation connector C (12P) and body ground (G504).