Navigation System - Voice Recognition Inoperative

WARNING: This page is about a different car, the 2005 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

NAVIGATION SYSTEM - VOICE RECOGNITION INOPERATIVE

Step	Action	Yes	No
Schematic Reference: NAVIGATION SYSTEM SCHEMATICS DEFINITION: The navigation voice recognition is inoperative.
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to DIAGNOSTIC SYSTEM CHECK - VEHICLE
2	Turn ON the ignition. Press the radio MENU button on the radio. When the navigation disclaimer screen appears, press the I AGREE button on the display. Press the MAP button on the radio. The display should show the current position of the vehicle. The navigation map should be clear and have clear color. Press the voice switch on the radio. Speak a valid voice command. The system should repeat your command and then perform the function. Does the system operate normally?	Go to TESTING FOR INTERMITTENT CONDITIONS & POOR CONNECTIONS	Go to Step 3
3	Test the cellular microphone signal circuit and the drain wire circuit for the following: An open A short to ground A short to voltage Refer to CIRCUIT TESTING and WIRING REPAIRS . Did you find and correct the condition?	Go to Step 6	Go to Step 4
4	Inspect for poor connections at the harness connector of the navigation radio. Refer to TESTING FOR INTERMITTENT CONDITIONS & POOR CONNECTIONS and CONNECTOR REPAIRS . Did you find and correct the condition?	Go to Step 6	Go to Step 5
5	Replace the navigation radio. Refer to CONTROL MODULE REFERENCES . Did you complete the replacement?	Go to Step 6	-
6	Operate the system to verify the repair. Does the system operate properly?	System OK	Go to Step 3