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

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

N1-N4:

N4-N6:

N7-N9:

N9-N11:

N11-N14:

Normal Operation
When the VOICE switch is pressed, a signal is sent to the audio unit through VMN16 (BN/WH), 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 RMN07 (VT) and VMN07 (GY). Power to the interior rear view mirror is provided through circuit CBP31 (BU/OG), and ground through circuit GD133 (BK).

DTC B2633 - sets when an open, short to ground, or short to voltage is detected on the microphone circuits.

Possible Causes
- Fuse
- Circuit CBP31 (BU/OG) open, short to ground or voltage
- Circuit GD133 (BK) open, short to ground or voltage
- Circuit RMN07 (VT) open, short to ground or voltage
- Circuit VMN07 (GY) open, short to ground or voltage
- Circuit VMN16 (BN/WH) open, short to ground or voltage
- Steering wheel controls
- Microphone (part of the interior rear view mirror)
- Audio unit