Test N: Voice Recognition Is Inoperative/Does Not Operate Correctly

PINPOINT TEST N: VOICE RECOGNITION IS INOPERATIVE/DOES NOT OPERATE CORRECTLY

Normal Operation
When the VOICE switch is pressed, a signal is sent to the audio unit through circuit VME14 (GY/YE), and the audio unit enters voice recognition mode. A microphone located in the interior rear view mirror receives the voice command and sends a signal to the audio unit through circuits VMN02 (WH/BN) and RMN02 (VT/BN). Power to the interior rear view mirror is provided through circuit CBP41 (BU), and ground through circuit GD133 (BK).

DTC B2633 (Driver-Front Microphone Circuit Failure) - sets when an open, short to ground, or short to voltage is detected on the microphone circuits.

This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- Steering wheel controls
- Microphone (part of the interior rear view mirror)
- Audio unit

N1:

N2-N6:

N6-N8:

N9-N10: