The vehicle navigation radio provides verbal directions to the driver through the radio speakers. The navigation radio sends an audio voice signal on the same circuits as the normal audio signals.

Schematic Reference

Radio/Navigation System Schematics

Connector End View Reference

Entertainment/Communication Connector End Views

Description and Operation

Radio/Audio System Description and Operation

Electrical Information Reference

Scan Tool Reference

Scan Tool Data List

1. Ignition ON, verify the radio is operating normally.

⇒	If the radio audio is distorted or inoperative, refer to Speakers Inoperative - One or More.

2. Drive the vehicle and activate the Navigation System by choosing a navigation route.
3. Verify the voice guidance is operating properly.

⇒	If the voice guidance is not operating properly, replace the radio.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for Radio replacement, setup, and programming