Audio driving instructions cannot be heard NOTE: Always check the connectors for poor connections or loose terminals. Push the display unit MENU key, and select ‘‘setting''. Check the audio driving instructions volume setting. Is it set to OFF?
YES | - | Set the volume to an audible level.■
NO | - | Go to Step 3 .
Turn the ignition switch OFF. Disconnect the navigation unit connector A (20P) and the audio unit 20P connector. Check for continuity between body ground and navigation unit connector A (20P) terminals No. 14, No. 15 individually. Is there continuity?
YES | - | If terminal No. 14 or No. 15 has continuity to ground, replace the affected shielded harness.■
NO | - | Go to Step 6 .