• The integrity of the microphone cannot be determined from a single part. When inspecting the microphone, perform the following procedure.
1. Connect the M-MDS to the DLC-2.
2. Perform the DTC inspection for the microphone and verify if any DTCs related to the microphone is detected. (See DTC INSPECTION.)
• If DTCs are detected, repair the malfunctioning location according to the applicable DTC troubleshooting. (Refer to the [DTC TABLE [CONNECTIVITY MASTER UNIT]] in the workshop manual.)