Symptom Troubleshooting

Navigation System Symptom Troubleshooting - Navigation unit will not eject or accept the navigation DVD

Navigation unit will not eject or accept the navigation DVD

1. Check the No. 23 (10 A) and the No. 35 (10 A) fuses in the under-dash fuse/relay box.

Are the fuses OK?

YES -

Go to step 2.

NO -

Replace the blown fuse(s), and recheck.�

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

3. Eject the navigation DVD from the navigation unit Service and Repair.

Does the navigation DVD eject?

YES -

Go to step 4.

NO -

Go to step 5.

4. Reinsert the navigation DVD into the navigation unit.

Does the navigation unit accept the navigation DVD?

YES -

No problems at this time, the system is normal. Inspect for loose or poor connections at terminals No. 1, No. 2 and No. 4 of navigation unit connector A (8P).�

NO -

Replace the navigation unit Service and Repair.�

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





Is there battery voltage?

YES -

Go to step 6.

NO -

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

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





Is there less than 0.2 V?

YES -

Substitute a known-good navigation unit Service and Repair, and retest. If the problem goes away, replace the original navigation unit Service and Repair.�

NO -

Repair an open or high resistance in the wire between navigation unit connector A (8P) and body ground (G503).�