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 control module (ACM) through VMN02 (WH/BN), and the ACM enters voice recognition mode. A microphone located in the interior rear view mirror receives the voice command and sends a signal to the ACM through circuits RMN07 (VT) and VMN07 (GY). Power to the interior rear view mirror is provided through circuit CBP05 (YE), and ground through circuit GD143 (BK/VT).

The Microphone Test is available through the IDS. Running this test causes the ACM to produce a test tone. If the system is operating correctly, the microphone detects the tone and produces a signal to the ACM indicating the tone was heard.

- DTC B2633 (Driver-Front Microphone Circuit Failure) - sets when the ACM does not detect the test tone during the Microphone Test. This DTC can be used to isolate the microphone circuitry as a cause of the concern.

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

N1:

N2-N6:

N6-N8:

N8-N10:

N10-N12:

N13-N14: